Merge ~ahasenack/ubuntu/+source/apache2:cosmic-apache2-2.4.33-3 into ubuntu/+source/apache2:ubuntu/devel

[Andreas Hasenack]

Standard merge from debian. Dropped some delta that was already applied upstream, but had to add a new delta because of a universe dependency that debian added (brotli).

I took a quick look at debian/patches/086_svn_cross_compiles, which we have been carrying for years. It is committed to apache trunk, but for some reason not yet in the release branches.

DEP8 tests pass.

Did a fresh install of the cosmic package, then php, setup an index.php that calls phpinfo(), then upgraded to this package and reloaded page, still worked.

There was some back and forth with enabling/disabling http2 and openssl 1.0/1.1, but it's finally enabled and I dropped the disable/enable sequence from the logical delta. End result is we still have http2 and openssl 1.1

PPA with test packages: ppa:ahasenack/apache-merge-2.4.33-3

Unmerged commits

73a11ba... by Andreas Hasenack on 2018-05-09

update-maintainer

84a360f... by Andreas Hasenack on 2018-05-09

reconstruct-changelog

84be5b6... by Andreas Hasenack on 2018-05-09

merge-changelogs

13e587f... by Andreas Hasenack on 2018-05-09

  * Added changes:
    - disable the brotli module and remove build-depends on libbrotli-dev
      as this package is in universe

cc00e3e... by Andreas Hasenack on 2018-05-08

    - Avoid crashes, hangs and loops by fixing mod_ldap locking: (LP: #1752683)
      + added debian/patches/util_ldap_cache_lock_fix.patch
      [Already applied upstream]

16f4de4... by Andreas Hasenack on 2018-05-08

    - SECURITY UPDATE: insecure nonce generation
      + debian/patches/CVE-2018-1312.patch: actually use the secret when
        generating nonces in modules/aaa/mod_auth_digest.c.
      + CVE-2018-1312

383720d... by Andreas Hasenack on 2018-05-08

    - SECURITY UPDATE: mod_cache_socache DoS
      + debian/patches/CVE-2018-1303.patch: fix caching of empty headers up
        to carriage return in modules/cache/mod_cache_socache.c.
      + CVE-2018-1303

a5d3780... by Andreas Hasenack on 2018-05-08

    - SECURITY UPDATE: DoS via specially-crafted request
      + debian/patches/CVE-2018-1301.patch: ensure that read lines are NUL
        terminated on any error, not only on buffer full in
        server/protocol.c.
      + CVE-2018-1301

5bdef75... by Andreas Hasenack on 2018-05-08

    - SECURITY UPDATE: mod_session header manipulation
      + debian/patches/CVE-2018-1283.patch: strip Session header when
        SessionEnv is on in modules/session/mod_session.c.
      + CVE-2018-1283

0aec639... by Andreas Hasenack on 2018-05-08

    - SECURITY UPDATE: incorrect <FilesMatch> matching
      + debian/patches/CVE-2017-15715.patch: allow to configure
        global/default options for regexes, like caseless matching or
        extended format in include/ap_regex.h, server/core.c,
        server/util_pcre.c.
      + CVE-2017-15715

diff --git a/Apache-apr2.dsw b/Apache-apr2.dsw
index c3f75e6..fe2f526 100644
--- a/Apache-apr2.dsw
+++ b/Apache-apr2.dsw
@@ -291,6 +291,9 @@ Package=<4>
     Project_Dep_Name mod_proxy_scgi
     End Project Dependency
     Begin Project Dependency
+    Project_Dep_Name mod_proxy_uwsgi
+    End Project Dependency
+    Begin Project Dependency
     Project_Dep_Name mod_proxy_wstunnel
     End Project Dependency
     Begin Project Dependency
@@ -2086,6 +2089,24 @@ Package=<4>
 
 ###############################################################################
 
+Project: "mod_md"=.\modules\md\mod_md.dsp - Package Owner=<4>
+
+Package=<5>
+{{{
+}}}
+
+Package=<4>
+{{{
+    Begin Project Dependency
+    Project_Dep_Name libapr
+    End Project Dependency
+    Begin Project Dependency
+    Project_Dep_Name libhttpd
+    End Project Dependency
+}}}
+
+###############################################################################
+
 Project: "mod_mime"=.\modules\http\mod_mime.dsp - Package Owner=<4>
 
 Package=<5>
@@ -2305,7 +2326,6 @@ Package=<4>
 }}}
 
 ###############################################################################
-###############################################################################
 
 Project: "mod_proxy_html"=.\modules\filters\mod_proxy_html.dsp - Package Owner=<4>
 
@@ -2389,6 +2409,26 @@ Package=<4>
     End Project Dependency
 }}}
 
+###############################################################################
+
+Project: "mod_proxy_uwsgi"=.\modules\proxy\mod_proxy_uwsgi.dsp - Package Owner=<4>
+
+Package=<5>
+{{{
+}}}
+
+Package=<4>
+{{{
+    Begin Project Dependency
+    Project_Dep_Name libapr
+    End Project Dependency
+    Begin Project Dependency
+    Project_Dep_Name libhttpd
+    End Project Dependency
+    Begin Project Dependency
+    Project_Dep_Name mod_proxy
+    End Project Dependency
+}}}
 
 ###############################################################################
 
diff --git a/Apache.dsw b/Apache.dsw
index 30866bc..a0be3ae 100644
--- a/Apache.dsw
+++ b/Apache.dsw
@@ -306,6 +306,9 @@ Package=<4>
     Project_Dep_Name mod_proxy_scgi
     End Project Dependency
     Begin Project Dependency
+    Project_Dep_Name mod_proxy_uwsgi
+    End Project Dependency
+    Begin Project Dependency
     Project_Dep_Name mod_proxy_wstunnel
     End Project Dependency
     Begin Project Dependency
@@ -2485,6 +2488,27 @@ Package=<4>
 
 ###############################################################################
 
+Project: "mod_md"=.\modules\md\mod_md.dsp - Package Owner=<4>
+
+Package=<5>
+{{{
+}}}
+
+Package=<4>
+{{{
+    Begin Project Dependency
+    Project_Dep_Name libapr
+    End Project Dependency
+    Begin Project Dependency
+    Project_Dep_Name libaprutil
+    End Project Dependency
+    Begin Project Dependency
+    Project_Dep_Name libhttpd
+    End Project Dependency
+}}}
+
+###############################################################################
+
 Project: "mod_mime"=.\modules\http\mod_mime.dsp - Package Owner=<4>
 
 Package=<5>
@@ -2834,6 +2858,30 @@ Package=<4>
 
 ###############################################################################
 
+Project: "mod_proxy_uwsgi"=.\modules\proxy\mod_proxy_uwsgi.dsp - Package Owner=<4>
+
+Package=<5>
+{{{
+}}}
+
+Package=<4>
+{{{
+    Begin Project Dependency
+    Project_Dep_Name libapr
+    End Project Dependency
+    Begin Project Dependency
+    Project_Dep_Name libaprutil
+    End Project Dependency
+    Begin Project Dependency
+    Project_Dep_Name libhttpd
+    End Project Dependency
+    Begin Project Dependency
+    Project_Dep_Name mod_proxy
+    End Project Dependency
+}}}
+
+###############################################################################
+
 Project: "mod_proxy_wstunnel"=.\modules\proxy\mod_proxy_wstunnel.dsp - Package Owner=<4>
 
 Package=<5>
diff --git a/BuildBin.dsp b/BuildBin.dsp
index 173cffb..1559664 100644
--- a/BuildBin.dsp
+++ b/BuildBin.dsp
@@ -39,7 +39,7 @@ CFG=BuildBin - Win32 Debug
 # PROP Use_Debug_Libraries 0
 # PROP Output_Dir ""
 # PROP Intermediate_Dir ""
-# PROP Cmd_Line "NMAKE /f makefile.win INSTDIR="\Apache2" LONG=Release _trydb _trylua _tryxml _tryssl _tryzlib _trynghttp2 _trybrotli _dummy"
+# PROP Cmd_Line "NMAKE /f makefile.win INSTDIR="\Apache2" LONG=Release _trydb _trylua _tryxml _tryssl _tryzlib _trynghttp2 _trybrotli _trymd _dummy"
 # PROP Rebuild_Opt ""
 # PROP Target_File "\Apache2\bin\httpd.exe"
 # PROP Bsc_Name ".\Browse\httpd.bsc"
@@ -58,7 +58,7 @@ CFG=BuildBin - Win32 Debug
 # PROP Use_Debug_Libraries 1
 # PROP Output_Dir ""
 # PROP Intermediate_Dir ""
-# PROP Cmd_Line "NMAKE /f makefile.win INSTDIR="\Apache2" LONG=Debug _trydb _trylua _tryxml _tryssl _tryzlib _trynghttp2 _trybrotli _dummy"
+# PROP Cmd_Line "NMAKE /f makefile.win INSTDIR="\Apache2" LONG=Debug _trydb _trylua _tryxml _tryssl _tryzlib _trynghttp2 _trybrotli _trymd _dummy"
 # PROP Rebuild_Opt ""
 # PROP Target_File "\Apache2\bin\httpd.exe"
 # PROP Bsc_Name ".\Browse\httpd.bsc"
diff --git a/CHANGES b/CHANGES
index ab0cd5d..5430153 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,4 +1,195 @@
                                                          -*- coding: utf-8 -*-
+Changes with Apache 2.4.33
+
+  *) core: Fix request timeout logging and possible crash for error_log hooks.
+     [Yann Ylavic]
+
+  *) mod_slomem_shm: Fix failure to create balancers's slotmems in Windows MPM,
+     where children processes need to attach them instead since they are owned
+     by the parent process already.  [Yann Ylavic]
+
+  *) ab: try all destination socket addresses returned by
+     apr_sockaddr_info_get instead of failing on first one when not available.
+     Needed for instance if localhost resolves to both ::1 and 127.0.0.1
+     e.g. if both are in /etc/hosts.  [Jan Kaluza]
+
+  *) ab: Use only one connection to determine working destination socket
+     address.  [Jan Kaluza]
+
+  *) ab: LibreSSL doesn't have or require Windows applink.c.  [Gregg L. Smith]
+
+  *) htpasswd/htdigest: Disable support for bcrypt on EBCDIC platforms. 
+     apr-util's bcrypt implementation doesn't tolerate EBCDIC.  [Eric Covener]
+
+  *) htpasswd/htdbm: report the right limit when get_password() overflows.
+     [Yann Ylavic]
+
+  *) htpasswd: Don't fail in -v mode if password file is unwritable.
+     PR 61631.  [Joe Orton]
+
+  *) htpasswd: don't point to (unused) stack memory on output
+     to make static analysers happy.  PR 60634.
+     [Yann Ylavic, reported by shqking and Zhenwei Zou]
+
+Changes with Apache 2.4.32
+
+  *) mod_access_compat: Fail if a comment is found in an Allow or Deny
+     directive.  [Jan Kaluza]
+
+  *) mod_authz_host: Ignore comments after "Require host", logging a
+     warning, or logging an error if the line is otherwise empty.
+     [Jan Kaluza, Joe Orton]
+
+  *) rotatelogs: Fix expansion of %Z in localtime (-l) mode, and fix
+     Y2K38 bug.  [Joe Orton]
+
+  *) mod_ssl: Support SSL DN raw variable extraction without conversion
+     to UTF-8, using _RAW suffix on variable names.  [Joe Orton]
+
+  *) ab: Fix https:// connection failures (regression in 2.4.30); fix
+     crash generating CSV output for large -n.  [Joe Orton, Jan Kaluza]
+
+Changes with Apache 2.4.31
+
+  *) mod_proxy_fcgi: Add the support for mod_proxy's flushpackets and flushwait
+     parameters. [Luca Toscano, Ruediger Pluem, Yann Ylavic]
+
+  *) mod_ldap: Avoid possible crashes, hangs, and busy loops due to
+     improper merging of the cache lock in vhost config.
+     PR 43164 [Eric Covener]
+
+  *) mpm_event: Do lingering close in worker(s).  [Yann Ylavic]
+
+  *) mpm_queue: Put fdqueue code in common for MPMs event and worker.
+     [Yann Ylavic]
+
+Changes with Apache 2.4.30
+
+  *) mod_session: Strip Session header when SessionEnv is on.  [Yann Ylavic]
+
+  *) mod_cache_socache: Fix caching of empty headers up to carriage return.
+     [Yann Ylavic]
+
+  *) core: For consistency, ensure that read lines are NUL terminated on any
+     error, not only on buffer full.  [Yann Ylavic]
+
+  *) mod_authnz_ldap: Fix language long names detection as short name.
+     [Yann Ylavic]
+
+  *) mod_proxy: Worker schemes and hostnames which are too large are no
+     longer fatal errors; it is logged and the truncated values are stored.
+     [Jim Jagielski]
+
+  *) regex: Allow to configure global/default options for regexes, like
+     caseless matching or extended format.  [Yann Ylavic]
+
+  *) mod_auth_digest: Actually use the secret when generating nonces. This change
+     may cause problems if used with round robin load balancers. PR 54637
+     [Stefan Fritsch]
+
+  *) mod_proxy: Allow setting options to globally defined balancer from
+     ProxyPass used in VirtualHost. Balancers are now merged using the new
+     merge_balancers method which merges the balancers options.  [Jan Kaluza]
+
+  *) logresolve: Fix incorrect behavior or segfault if -c flag is used
+     Fixes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=823259
+     [Stefan Fritsch]
+
+  *) mod_remoteip: Add support for PROXY protocol (code donated by Cloudzilla).
+     Add ability for PROXY protocol processing to be optional to donated code.
+     See also: http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt
+     [Cloudzilla/roadrunner2@GitHub, Jim Jagielski, Daniel Ruggeri]
+
+  *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
+     allowing per backend TLS configuration.  [Yann Ylavic]
+
+  *) mod_proxy_uwsgi: Add in UWSGI proxy (sub)module. [Roberto De Ioris,
+     Jim Jagielski]
+
+  *) mod_proxy_balancer,mod_slotmem_shm: Rework SHM reuse/deletion to not
+     depend on the number of restarts (non-Unix systems) and preserve shared
+     names as much as possible on configuration changes for SHMs and persisted
+     files.  PR 62044.  [Yann Ylavic, Jim Jagielski]
+
+  *) mod_http2: obsolete code removed, no more events on beam pool destruction,
+     discourage content encoders on http2-status response (where they do not work).
+     [Stefan Eissing]
+
+  *) mpm_event: Let the listener thread do its maintenance job on resources
+     shortage.  PR 61979.  [Yann Ylavic]
+
+  *) mpm_event: Wakeup the listener to re-enable listening sockets.
+     [Yann Ylavic]
+
+  *) mod_ssl: The SSLCompression directive will now give an error if used
+     with an OpenSSL build which does not support any compression methods.
+     [Joe Orton]
+
+  *) mpm_event,worker: Mask signals for threads created by modules in child
+     init, so that they don't receive (implicitely) the ones meant for the MPM.
+     PR 62009. [Armin Abfalterer <a.abfalterer gmail com>, Yann Ylavic]
+
+  *) mod_md: new experimental, module for managing domains across virtual hosts,
+     implementing the Let's Encrypt ACMEv1 protocol to signup and renew 
+     certificates. Please read the modules documentation for further instructions
+     on how to use it. [Stefan Eissing]
+  
+  *) mod_proxy_html: skip documents shorter than 4 bytes
+     PR 56286 [Micha Lenk <micha lenk info>]
+
+  *) core, mpm_event: Avoid a small memory leak of the scoreboard handle, for
+     the lifetime of the connection, each time it is processed by MPM event.
+     [Yann Ylavic]
+
+  *) mpm_event: Update scoreboard status for KeepAlive state.  [Yann Ylavic]
+
+  *) mod_ldap: Fix a case where a full LDAP cache would continually fail to 
+     purge old entries and log AH01323. PR61891.  
+     [Hendrik Harms <hendrik.harms gmail.com>]
+
+  *) mpm_event: close connections not reported as handled by any module to
+     avoid losing track of them and leaking scoreboard entries.  PR 61551.
+     [Yann Ylavic]
+
+  *) core: A signal received while stopping could have crashed the main
+     process.  PR 61558.  [Yann Ylavic]
+
+  *) mod_ssl: support for mod_md added. [Stefan Eissing]
+  
+  *) mod_proxy_html: process parsed comments immediately. 
+     Fixes bug (seen in the wild when used with IBM's HTTPD bundle)
+     where parsed comments may be lost. [Nick Kew]
+
+  *) mod_proxy_html: introduce doctype for HTML 5 [Nick Kew]
+
+  *) mod_proxy_html: fix typo-bug processing "strict" vs "transitional"
+     HTML/XHTML.  PR 56457  [Nick Kew]
+
+  *) mpm_event: avoid a very unlikely race condition between the listener and
+     the workers when the latter fails to add a connection to the pollset.
+     [Yann Ylavic]
+
+  *) core: silently ignore a not existent file path when IncludeOptional
+     is used. PR 57585. [Alberto Murillo Silva <powerbsd yahoo.com>, Luca Toscano]
+
+  *) mod_macro: fix usability of globally defined macros in .htaccess files.
+     PR 57525.  [Jose Kahan <jose w3.org>, Yann Ylavic]
+
+  *) mod_rewrite, core: add the Vary header when a condition evaluates to true
+     and the related RewriteRule is used in a Directory context
+     (triggering an internal redirect). [Luca Toscano]
+
+  *) ab: Make the TLS layer aware that the underlying socket is nonblocking,
+     and use/handle POLLOUT where needed to avoid busy IOs and recover write
+     errors when appropriate.  [Yann Ylavic]
+
+  *) ab: Keep reading nonblocking to exhaust TCP or SSL buffers when previous
+     read was incomplete (the SSL case can cause the next poll() to timeout
+     since data are buffered already).  PR 61301 [Luca Toscano, Yann Ylavic]
+
+  *) mod_http2: avoid unnecessary data retrieval for a trace log. Allow certain
+     information retrievals on null bucket beams where it makes sense. [Stefan Eissing]
+
 Changes with Apache 2.4.29
 
   *) mod_unique_id: Use output of the PRNG rather than IP address and
@@ -6,7 +197,7 @@ Changes with Apache 2.4.29
      plus improving randomness for IPv6-only hosts.  [Jan Kaluza]
 
   *) mod_rewrite, core: Avoid the 'Vary: Host' response header when HTTP_HOST
-     is used in a condition that evaluates to true. PR 58231 [Luca Toscano]
+     is used in a condition that evaluates to true. PR 58231 [Luca Toscano, Yann Ylavic]
 
   *) mod_http2: v0.10.12, removed optimization for mutex handling in bucket
      beams that could lead to assertion failure in edge cases.
@@ -411,6 +602,9 @@ Changes with Apache 2.4.24 (not released)
   *) mod_socache_memcache: Provide memcache stats to mod_status.
      [Jim Jagielski]
 
+  *) mod_file_cache: mod_file_cache should be able to serve files that
+     haven't had a Content-Type set via e.g. mod_mime. [Eric Covener]
+
   *) http_filters: Fix potential looping in new check_headers() due to new
      pattern of ap_die() from http header filter. Explicitly clear the
      previous headers and body.
@@ -441,7 +635,7 @@ Changes with Apache 2.4.24 (not released)
   *) core: New directive RegisterHttpMethod for registering non-standard
      HTTP methods. [Stefan Fritsch]
 
-  *) mod_socache_memcache: Pass expiration time through to memcached.
+  *) mod_socache_memcache: Pass expiration time through to memcached. PR 55445.
      [Faidon Liambotis <paravoid debian.org>, Joe Orton]
 
   *) mod_cache: Use the actual URI path and query-string for identifying the
@@ -638,6 +832,9 @@ Changes with Apache 2.4.22
 
 Changes with Apache 2.4.21
 
+  *) core: Added support for HTTP code 451. PR 58985.
+     [Yehuda Katz <yehuda ymkatz.net>, Jim Jagielski]
+
   *) ab: Use caseless matching for HTTP tokens (e.g. content-length). PR 59111.
      [Yann Ylavic]
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3cd8a34..a571061 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -619,6 +619,7 @@ SET(LIBHTTPD_SOURCES
   server/util.c
   server/util_cfgtree.c
   server/util_cookies.c
+  server/util_debug.c
   server/util_expr_eval.c
   server/util_expr_parse.c
   server/util_fcgi.c
diff --git a/LICENSE b/LICENSE
index de66166..0d72de2 100644
--- a/LICENSE
+++ b/LICENSE
@@ -322,6 +322,40 @@ For the  server\util_md5.c component:
  * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES.  
  */
 
+
+For the util_pcre.c and ap_regex.h components:
+
+           Copyright (c) 1997-2004 University of Cambridge
+
+-----------------------------------------------------------------------------
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of the University of Cambridge nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+-----------------------------------------------------------------------------
+
+
 For the  srclib\apr\include\apr_md5.h component: 
 /*
  * This is work is derived from material Copyright RSA Data Security, Inc.
diff --git a/Makefile.win b/Makefile.win
index 3444cca..afe7b2d 100644
--- a/Makefile.win
+++ b/Makefile.win
@@ -295,6 +295,30 @@ _trybrotli:
 
 !ENDIF
 
+!IF EXIST("srclib\openssl") && EXIST("srclib\jansson") && EXIST("srclib\curl")
+
+_trymd:
+!IF $(USEMAK) == 1
+	cd modules\md
+	$(MAKE) $(MAKEOPT) $(SSLOPT) -f mod_md.mak CFG="mod_md - Win32 $(LONG)" RECURSE=0 $(CTARGET)
+	cd ..\..
+!ELSEIF $(USESLN) == 1
+	devenv $(TLP).sln /useenv $(CTARGET) $(LONG) /project mod_md
+!ELSE
+	@msdev $(TLP).dsw /USEENV /MAKE \
+		"mod_md - Win32 $(LONG)" /NORECURSE $(CTARGET)
+!ENDIF
+
+!ELSE
+#     NOT EXIST("srclib\openssl") && EXIST("srclib\jansson") && EXIST("srclib\curl")
+
+_trymd:
+	@echo -----
+	@echo mod_md will not build unless OpenSSL, Jansson and Curl are built and placed
+	@echo in srclib. Example: srclib/openssl, srclib/jansson and srclib/curl
+
+!ENDIF
+
 _trydb:
 !IF $(USEMAK) == 1
 	cd srclib\$(UTILDIR)\dbd
@@ -586,6 +610,11 @@ _build:
 	 $(MAKE) $(MAKEOPT) -f mod_userdir.mak     CFG="mod_userdir - Win32 $(LONG)" RECURSE=0 $(CTARGET)
 	 $(MAKE) $(MAKEOPT) -f mod_vhost_alias.mak CFG="mod_vhost_alias - Win32 $(LONG)" RECURSE=0 $(CTARGET)
 	cd ..\..
+!IF EXIST("srclib\openssl") && EXIST("srclib\jansson") && EXIST("srclib\curl")
+	cd modules\md
+	 $(MAKE) $(MAKEOPT) $(SSLOPT) -f mod_md.mak          CFG="mod_md - Win32 $(LONG)" RECURSE=0 $(CTARGET)
+	cd ..\..
+!ENDIF
 	cd modules\metadata
 	 $(MAKE) $(MAKEOPT) -f mod_cern_meta.mak   CFG="mod_cern_meta - Win32 $(LONG)" RECURSE=0 $(CTARGET)
 	 $(MAKE) $(MAKEOPT) -f mod_env.mak         CFG="mod_env - Win32 $(LONG)" RECURSE=0 $(CTARGET)
@@ -610,6 +639,7 @@ _build:
 	 $(MAKE) $(MAKEOPT) -f mod_proxy_hcheck.mak  CFG="mod_proxy_hcheck - Win32 $(LONG)" RECURSE=0 $(CTARGET)
 	 $(MAKE) $(MAKEOPT) -f mod_proxy_http.mak  CFG="mod_proxy_http - Win32 $(LONG)" RECURSE=0 $(CTARGET)
 	 $(MAKE) $(MAKEOPT) -f mod_proxy_scgi.mak  CFG="mod_proxy_scgi - Win32 $(LONG)" RECURSE=0 $(CTARGET)
+	 $(MAKE) $(MAKEOPT) -f mod_proxy_uwsgi.mak  CFG="mod_proxy_uwsgi - Win32 $(LONG)" RECURSE=0 $(CTARGET)
 	 $(MAKE) $(MAKEOPT) -f mod_proxy_wstunnel.mak  CFG="mod_proxy_wstunnel - Win32 $(LONG)" RECURSE=0 $(CTARGET)
 	cd ..\..
 	cd modules\proxy\balancers
@@ -871,6 +901,16 @@ _copybin:
 	copy modules\mappers\$(LONG)\mod_speling.$(src_so) 	"$(inst_so)" <.y
 	copy modules\mappers\$(LONG)\mod_userdir.$(src_so) 	"$(inst_so)" <.y
 	copy modules\mappers\$(LONG)\mod_vhost_alias.$(src_so) 	"$(inst_so)" <.y
+!IF EXIST("srclib\openssl") &&  EXIST("srclib\jansson") &&  EXIST("srclib\curl")
+	copy modules\md\$(LONG)\mod_md.$(src_so) 		"$(inst_so)" <.y
+!IF "$(SHORT)" == "D"
+	-copy srclib\curl\bin\libcurl_debug.$(src_dll)		"$(inst_dll)" <.y
+	-copy srclib\jansson\bin\jansson_d.$(src_dll)		"$(inst_dll)" <.y
+!ELSE
+	-copy srclib\curl\bin\libcurl.$(src_dll)		"$(inst_dll)" <.y
+	-copy srclib\jansson\bin\jansson.$(src_dll)		"$(inst_dll)" <.y
+!ENDIF
+!ENDIF
 	copy modules\metadata\$(LONG)\mod_cern_meta.$(src_so) 	"$(inst_so)" <.y
 	copy modules\metadata\$(LONG)\mod_env.$(src_so) 	"$(inst_so)" <.y
 	copy modules\metadata\$(LONG)\mod_expires.$(src_so) 	"$(inst_so)" <.y
@@ -892,6 +932,7 @@ _copybin:
 	copy modules\proxy\$(LONG)\mod_proxy_hcheck.$(src_so) 	"$(inst_so)" <.y
 	copy modules\proxy\$(LONG)\mod_proxy_http.$(src_so) 	"$(inst_so)" <.y
 	copy modules\proxy\$(LONG)\mod_proxy_scgi.$(src_so) 	"$(inst_so)" <.y
+	copy modules\proxy\$(LONG)\mod_proxy_uwsgi.$(src_so) 	"$(inst_so)" <.y
 	copy modules\proxy\$(LONG)\mod_proxy_wstunnel.$(src_so) 	"$(inst_so)" <.y
 	copy modules\proxy\balancers\$(LONG)\mod_lbmethod_bybusyness.$(src_so) "$(inst_so)" <.y
 	copy modules\proxy\balancers\$(LONG)\mod_lbmethod_byrequests.$(src_so) "$(inst_so)" <.y
diff --git a/NOTICE b/NOTICE
index 01a492b..2c1a2e9 100644
--- a/NOTICE
+++ b/NOTICE
@@ -1,5 +1,5 @@
 Apache HTTP Server
-Copyright 2017 The Apache Software Foundation.
+Copyright 2018 The Apache Software Foundation.
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
@@ -12,3 +12,7 @@ This software contains code derived from the RSA Data Security
 Inc. MD5 Message-Digest Algorithm, including various
 modifications by Spyglass Inc., Carnegie Mellon University, and
 Bell Communications Research, Inc (Bellcore).
+
+This software contains code derived from the PCRE library pcreposix.c
+source code, written by Philip Hazel, Copyright 1997-2004
+by the University of Cambridge, England.
diff --git a/acinclude.m4 b/acinclude.m4
index 90ca74f..ce1d637 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -574,9 +574,9 @@ AC_DEFUN([APACHE_CHECK_OPENSSL],[
       ap_openssl_libs="${ap_openssl_libs:--lssl -lcrypto} `$apr_config --libs`"
       APR_ADDTO(MOD_LDFLAGS, [$ap_openssl_libs])
       APR_ADDTO(LIBS, [$ap_openssl_libs])
-      APR_SETVAR(ab_LDFLAGS, [$MOD_LDFLAGS])
+      APR_SETVAR(ab_LIBS, [$MOD_LDFLAGS])
       APACHE_SUBST(ab_CFLAGS)
-      APACHE_SUBST(ab_LDFLAGS)
+      APACHE_SUBST(ab_LIBS)
 
       dnl Run library and function checks
       liberrors=""
diff --git a/build/config.guess b/build/config.guess
index 69ed3e5..8bd1095 100755
--- a/build/config.guess
+++ b/build/config.guess
@@ -2,7 +2,7 @@
 # Attempt to guess a canonical system name.
 #   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2017-03-05'
+timestamp='2017-09-16'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@ timestamp='2017-03-05'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -27,7 +27,7 @@ timestamp='2017-03-05'
 # Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
 #
 # You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
 #
 # Please send patches to <[e-mail]>.
 
@@ -259,6 +259,9 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
     *:Sortix:*:*)
 	echo ${UNAME_MACHINE}-unknown-sortix
 	exit ;;
+    *:Redox:*:*)
+	echo ${UNAME_MACHINE}-unknown-redox
+	exit ;;
     alpha:OSF1:*:*)
 	case $UNAME_RELEASE in
 	*4.0)
@@ -315,15 +318,6 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
 	exitcode=$?
 	trap '' 0
 	exit $exitcode ;;
-    Alpha\ *:Windows_NT*:*)
-	# How do we know it's Interix rather than the generic POSIX subsystem?
-	# Should we change UNAME_MACHINE based on the output of uname instead
-	# of the specific Alpha model?
-	echo alpha-pc-interix
-	exit ;;
-    21064:Windows_NT:50:3)
-	echo alpha-dec-winnt3.5
-	exit ;;
     Amiga*:UNIX_System_V:4.0:*)
 	echo m68k-unknown-sysv4
 	exit ;;
@@ -855,10 +849,6 @@ EOF
     *:MSYS*:*)
 	echo ${UNAME_MACHINE}-pc-msys
 	exit ;;
-    i*:windows32*:*)
-	# uname -m includes "-pc" on this system.
-	echo ${UNAME_MACHINE}-mingw32
-	exit ;;
     i*:PW*:*)
 	echo ${UNAME_MACHINE}-pc-pw32
 	exit ;;
@@ -874,27 +864,12 @@ EOF
 		echo ia64-unknown-interix${UNAME_RELEASE}
 		exit ;;
 	esac ;;
-    [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
-	echo i${UNAME_MACHINE}-pc-mks
-	exit ;;
-    8664:Windows_NT:*)
-	echo x86_64-pc-mks
-	exit ;;
-    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
-	# How do we know it's Interix rather than the generic POSIX subsystem?
-	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
-	# UNAME_MACHINE based on the output of uname instead of i386?
-	echo i586-pc-interix
-	exit ;;
     i*:UWIN*:*)
 	echo ${UNAME_MACHINE}-pc-uwin
 	exit ;;
     amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
 	echo x86_64-unknown-cygwin
 	exit ;;
-    p*:CYGWIN*:*)
-	echo powerpcle-unknown-cygwin
-	exit ;;
     prep*:SunOS:5.*:*)
 	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
 	exit ;;
@@ -1304,14 +1279,21 @@ EOF
 	if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
 	    if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
 		if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
-		    (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
-		    grep IS_64BIT_ARCH >/dev/null
+		       (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		       grep IS_64BIT_ARCH >/dev/null
 		then
 		    case $UNAME_PROCESSOR in
 			i386) UNAME_PROCESSOR=x86_64 ;;
 			powerpc) UNAME_PROCESSOR=powerpc64 ;;
 		    esac
 		fi
+		# On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc
+		if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \
+		       (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		       grep IS_PPC >/dev/null
+		then
+		    UNAME_PROCESSOR=powerpc
+		fi
 	    fi
 	elif test "$UNAME_PROCESSOR" = i386 ; then
 	    # Avoid executing cc on OS X 10.9, as it ships with a stub
@@ -1335,16 +1317,16 @@ EOF
     *:QNX:*:4*)
 	echo i386-pc-qnx
 	exit ;;
-    NEO-?:NONSTOP_KERNEL:*:*)
+    NEO-*:NONSTOP_KERNEL:*:*)
 	echo neo-tandem-nsk${UNAME_RELEASE}
 	exit ;;
     NSE-*:NONSTOP_KERNEL:*:*)
 	echo nse-tandem-nsk${UNAME_RELEASE}
 	exit ;;
-    NSR-?:NONSTOP_KERNEL:*:*)
+    NSR-*:NONSTOP_KERNEL:*:*)
 	echo nsr-tandem-nsk${UNAME_RELEASE}
 	exit ;;
-    NSX-?:NONSTOP_KERNEL:*:*)
+    NSX-*:NONSTOP_KERNEL:*:*)
 	echo nsx-tandem-nsk${UNAME_RELEASE}
 	exit ;;
     *:NonStop-UX:*:*)
@@ -1422,12 +1404,12 @@ cat >&2 <<EOF
 $0: unable to guess system type
 
 This script (version $timestamp), has failed to recognize the
-operating system you are using. If your script is old, overwrite
-config.guess and config.sub with the latest versions from:
+operating system you are using. If your script is old, overwrite *all*
+copies of config.guess and config.sub with the latest versions from:
 
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
 and
-  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
 
 If $0 has already been updated, send the following data and any
 information you think might be pertinent to [e-mail] to
diff --git a/build/config.sub b/build/config.sub
index 40ea5df..95dc3d0 100755
--- a/build/config.sub
+++ b/build/config.sub
@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2017 Free Software Foundation, Inc.
 
-timestamp='2017-04-02'
+timestamp='2017-09-16'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@ timestamp='2017-04-02'
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
@@ -33,7 +33,7 @@ timestamp='2017-04-02'
 # Otherwise, we print the canonical config type on stdout and succeed.
 
 # You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
 
 # This file is supposed to be the same for all GNU packages
 # and recognize all the CPU types, system types and aliases
@@ -229,9 +229,6 @@ case $os in
 	-ptx*)
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
 		;;
-	-windowsnt*)
-		os=`echo $os | sed -e 's/windowsnt/winnt/'`
-		;;
 	-psos*)
 		os=-psos
 		;;
@@ -1259,6 +1256,9 @@ case $basic_machine in
 		basic_machine=hppa1.1-winbond
 		os=-proelf
 		;;
+	x64)
+		basic_machine=x86_64-pc
+		;;
 	xbox)
 		basic_machine=i686-pc
 		os=-mingw32
@@ -1366,8 +1366,8 @@ esac
 if [ x"$os" != x"" ]
 then
 case $os in
-	# First match some system type aliases
-	# that might get confused with valid system types.
+	# First match some system type aliases that might get confused
+	# with valid system types.
 	# -solaris* is a basic system type, with this one exception.
 	-auroraux)
 		os=-auroraux
@@ -1387,9 +1387,9 @@ case $os in
 	-gnu/linux*)
 		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
 		;;
-	# First accept the basic system types.
+	# Now accept the basic system types.
 	# The portable systems comes first.
-	# Each alternative MUST END IN A *, to match a version number.
+	# Each alternative MUST end in a * to match a version number.
 	# -sysv* is not here because it comes later, after sysvr4.
 	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
 	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
diff --git a/build/installwinconf.awk b/build/installwinconf.awk
index 05f519b..a786c7f 100644
--- a/build/installwinconf.awk
+++ b/build/installwinconf.awk
@@ -156,6 +156,7 @@ BEGIN {
           print "#LoadModule log_debug_module modules/mod_log_debug.so" > dstfl;
           print "#LoadModule log_forensic_module modules/mod_log_forensic.so" > dstfl;
           print "#LoadModule lua_module modules/mod_lua.so" > dstfl;
+          print "#LoadModule md_module modules/mod_md.so" > dstfl;
           print "#LoadModule macro_module modules/mod_macro.so" > dstfl;
           print "LoadModule mime_module modules/mod_mime.so" > dstfl;
           print "#LoadModule mime_magic_module modules/mod_mime_magic.so" > dstfl;
@@ -172,6 +173,7 @@ BEGIN {
           print "#LoadModule proxy_http_module modules/mod_proxy_http.so" > dstfl;
           print "#LoadModule proxy_http2_module modules/mod_proxy_http2.so" > dstfl;
           print "#LoadModule proxy_scgi_module modules/mod_proxy_scgi.so" > dstfl;
+          print "#LoadModule proxy_uwsgi_module modules/mod_proxy_uwsgi.so" > dstfl;
           print "#LoadModule proxy_wstunnel_module modules/mod_proxy_wstunnel.so" > dstfl;
           print "#LoadModule ratelimit_module modules/mod_ratelimit.so" > dstfl;
           print "#LoadModule reflector_module modules/mod_reflector.so" > dstfl;
diff --git a/build/ltmain.sh b/build/ltmain.sh
index b6f3fcb..bffda54 100644
--- a/build/ltmain.sh
+++ b/build/ltmain.sh
@@ -1,12 +1,9 @@
-#! /bin/sh
-## DO NOT EDIT - This file generated from ./build-aux/ltmain.in
-##               by inline-source v2014-01-03.01
 
-# libtool (GNU libtool) 2.4.6
-# Provide generalized library-building support services.
+# libtool (GNU libtool) 2.4.2
 # Written by Gordon Matzigkeit <[e-mail]>, 1996
 
-# Copyright (C) 1996-2015 Free Software Foundation, Inc.
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006,
+# 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
 # This is free software; see the source for copying conditions.  There is NO
 # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
@@ -26,2112 +23,881 @@
 # General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-
-PROGRAM=libtool
-PACKAGE=libtool
-VERSION=2.4.6
-package_revision=2.4.6
-
-
-## ------ ##
-## Usage. ##
-## ------ ##
-
-# Run './libtool --help' for help with using this script from the
-# command line.
-
-
-## ------------------------------- ##
-## User overridable command paths. ##
-## ------------------------------- ##
-
-# After configure completes, it has a better idea of some of the
-# shell tools we need than the defaults used by the functions shared
-# with bootstrap, so set those here where they can still be over-
-# ridden by the user, but otherwise take precedence.
-
-: ${AUTOCONF="autoconf"}
-: ${AUTOMAKE="automake"}
-
-
-## -------------------------- ##
-## Source external libraries. ##
-## -------------------------- ##
-
-# Much of our low-level functionality needs to be sourced from external
-# libraries, which are installed to $pkgauxdir.
-
-# Set a version string for this script.
-scriptversion=2015-01-20.17; # UTC
-
-# General shell script boiler plate, and helper functions.
-# Written by Gary V. Vaughan, 2004
-
-# Copyright (C) 2004-2015 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions.  There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-
-# As a special exception to the GNU General Public License, if you distribute
-# this file as part of a program or library that is built using GNU Libtool,
-# you may include this file under the same distribution terms that you use
-# for the rest of that program.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program. If not, see <http://www.gnu.org/licenses/>.
+# along with GNU Libtool; see the file COPYING.  If not, a copy
+# can be downloaded from http://www.gnu.org/licenses/gpl.html,
+# or obtained by writing to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
-# Please report bugs or propose patches to [e-mail].
-
-
-## ------ ##
-## Usage. ##
-## ------ ##
-
-# Evaluate this file near the top of your script to gain access to
-# the functions and variables defined here:
+# Usage: $progname [OPTION]... [MODE-ARG]...
+#
+# Provide generalized library-building support services.
 #
-#   . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh
+#       --config             show all configuration variables
+#       --debug              enable verbose shell tracing
+#   -n, --dry-run            display commands without modifying any files
+#       --features           display basic configuration information and exit
+#       --mode=MODE          use operation mode MODE
+#       --preserve-dup-deps  don't remove duplicate dependency libraries
+#       --quiet, --silent    don't print informational messages
+#       --no-quiet, --no-silent
+#                            print informational messages (default)
+#       --no-warn            don't display warning messages
+#       --tag=TAG            use configuration variables from tag TAG
+#   -v, --verbose            print more informational messages than default
+#       --no-verbose         don't print the extra informational messages
+#       --version            print version information
+#   -h, --help, --help-all   print short, long, or detailed help message
 #
-# If you need to override any of the default environment variable
-# settings, do that before evaluating this file.
-
-
-## -------------------- ##
-## Shell normalisation. ##
-## -------------------- ##
+# MODE must be one of the following:
+#
+#         clean              remove files from the build directory
+#         compile            compile a source file into a libtool object
+#         execute            automatically set library path, then run a program
+#         finish             complete the installation of libtool libraries
+#         install            install libraries or executables
+#         link               create a library or an executable
+#         uninstall          remove libraries from an installed directory
+#
+# MODE-ARGS vary depending on the MODE.  When passed as first option,
+# `--mode=MODE' may be abbreviated as `MODE' or a unique abbreviation of that.
+# Try `$progname --help --mode=MODE' for a more detailed description of MODE.
+#
+# When reporting a bug, please describe a test case to reproduce it and
+# include the following information:
+#
+#         host-triplet:	$host
+#         shell:		$SHELL
+#         compiler:		$LTCC
+#         compiler flags:		$LTCFLAGS
+#         linker:		$LD (gnu? $with_gnu_ld)
+#         $progname:	(GNU libtool) 2.4.2 Debian-2.4.2-1.11
+#         automake:	$automake_version
+#         autoconf:	$autoconf_version
+#
+# Report bugs to <[e-mail]>.
+# GNU libtool home page: <http://www.gnu.org/software/libtool/>.
+# General help using GNU software: <http://www.gnu.org/gethelp/>.
 
-# Some shells need a little help to be as Bourne compatible as possible.
-# Before doing anything else, make sure all that help has been provided!
+PROGRAM=libtool
+PACKAGE=libtool
+VERSION="2.4.2 Debian-2.4.2-1.11"
+TIMESTAMP=""
+package_revision=1.3337
 
-DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
   emulate sh
   NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which
   # is contrary to our usage.  Disable this feature.
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
 else
-  case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac
-fi
-
-# NLS nuisances: We save the old values in case they are required later.
-_G_user_locale=
-_G_safe_locale=
-for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
-do
-  eval "if test set = \"\${$_G_var+set}\"; then
-          save_$_G_var=\$$_G_var
-          $_G_var=C
-	  export $_G_var
-	  _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\"
-	  _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\"
-	fi"
-done
-
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
-
-# Make sure IFS has a sensible default
-sp=' '
-nl='
-'
-IFS="$sp	$nl"
-
-# There are apparently some retarded systems that use ';' as a PATH separator!
-if test "${PATH_SEPARATOR+set}" != set; then
-  PATH_SEPARATOR=:
-  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
-    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
-      PATH_SEPARATOR=';'
-  }
+  case `(set -o) 2>/dev/null` in *posix*) set -o posix;; esac
 fi
+BIN_SH=xpg4; export BIN_SH # for Tru64
+DUALCASE=1; export DUALCASE # for MKS sh
 
-
-
-## ------------------------- ##
-## Locate command utilities. ##
-## ------------------------- ##
-
-
-# func_executable_p FILE
-# ----------------------
-# Check that FILE is an executable regular file.
-func_executable_p ()
-{
-    test -f "$1" && test -x "$1"
-}
-
-
-# func_path_progs PROGS_LIST CHECK_FUNC [PATH]
-# --------------------------------------------
-# Search for either a program that responds to --version with output
-# containing "GNU", or else returned by CHECK_FUNC otherwise, by
-# trying all the directories in PATH with each of the elements of
-# PROGS_LIST.
-#
-# CHECK_FUNC should accept the path to a candidate program, and
-# set $func_check_prog_result if it truncates its output less than
-# $_G_path_prog_max characters.
-func_path_progs ()
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
 {
-    _G_progs_list=$1
-    _G_check_func=$2
-    _G_PATH=${3-"$PATH"}
-
-    _G_path_prog_max=0
-    _G_path_prog_found=false
-    _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:}
-    for _G_dir in $_G_PATH; do
-      IFS=$_G_save_IFS
-      test -z "$_G_dir" && _G_dir=.
-      for _G_prog_name in $_G_progs_list; do
-        for _exeext in '' .EXE; do
-          _G_path_prog=$_G_dir/$_G_prog_name$_exeext
-          func_executable_p "$_G_path_prog" || continue
-          case `"$_G_path_prog" --version 2>&1` in
-            *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;;
-            *)     $_G_check_func $_G_path_prog
-		   func_path_progs_result=$func_check_prog_result
-		   ;;
-          esac
-          $_G_path_prog_found && break 3
-        done
-      done
-    done
-    IFS=$_G_save_IFS
-    test -z "$func_path_progs_result" && {
-      echo "no acceptable sed could be found in \$PATH" >&2
-      exit 1
-    }
-}
-
-
-# We want to be able to use the functions in this file before configure
-# has figured out where the best binaries are kept, which means we have
-# to search for them ourselves - except when the results are already set
-# where we skip the searches.
-
-# Unless the user overrides by setting SED, search the path for either GNU
-# sed, or the sed that truncates its output the least.
-test -z "$SED" && {
-  _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
-  for _G_i in 1 2 3 4 5 6 7; do
-    _G_sed_script=$_G_sed_script$nl$_G_sed_script
-  done
-  echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed
-  _G_sed_script=
-
-  func_check_prog_sed ()
-  {
-    _G_path_prog=$1
-
-    _G_count=0
-    printf 0123456789 >conftest.in
-    while :
-    do
-      cat conftest.in conftest.in >conftest.tmp
-      mv conftest.tmp conftest.in
-      cp conftest.in conftest.nl
-      echo '' >> conftest.nl
-      "$_G_path_prog" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break
-      diff conftest.out conftest.nl >/dev/null 2>&1 || break
-      _G_count=`expr $_G_count + 1`
-      if test "$_G_count" -gt "$_G_path_prog_max"; then
-        # Best one so far, save it but keep looking for a better one
-        func_check_prog_result=$_G_path_prog
-        _G_path_prog_max=$_G_count
-      fi
-      # 10*(2^10) chars as input seems more than enough
-      test 10 -lt "$_G_count" && break
-    done
-    rm -f conftest.in conftest.tmp conftest.nl conftest.out
-  }
-
-  func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin
-  rm -f conftest.sed
-  SED=$func_path_progs_result
+  eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
 }
 
+# NLS nuisances: We save the old values to restore during execute mode.
+lt_user_locale=
+lt_safe_locale=
+for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+do
+  eval "if test \"\${$lt_var+set}\" = set; then
+          save_$lt_var=\$$lt_var
+          $lt_var=C
+	  export $lt_var
+	  lt_user_locale=\"$lt_var=\\\$save_\$lt_var; \$lt_user_locale\"
+	  lt_safe_locale=\"$lt_var=C; \$lt_safe_locale\"
+	fi"
+done
+LC_ALL=C
+LANGUAGE=C
+export LANGUAGE LC_ALL
 
-# Unless the user overrides by setting GREP, search the path for either GNU
-# grep, or the grep that truncates its output the least.
-test -z "$GREP" && {
-  func_check_prog_grep ()
-  {
-    _G_path_prog=$1
-
-    _G_count=0
-    _G_path_prog_max=0
-    printf 0123456789 >conftest.in
-    while :
-    do
-      cat conftest.in conftest.in >conftest.tmp
-      mv conftest.tmp conftest.in
-      cp conftest.in conftest.nl
-      echo 'GREP' >> conftest.nl
-      "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' <conftest.nl >conftest.out 2>/dev/null || break
-      diff conftest.out conftest.nl >/dev/null 2>&1 || break
-      _G_count=`expr $_G_count + 1`
-      if test "$_G_count" -gt "$_G_path_prog_max"; then
-        # Best one so far, save it but keep looking for a better one
-        func_check_prog_result=$_G_path_prog
-        _G_path_prog_max=$_G_count
-      fi
-      # 10*(2^10) chars as input seems more than enough
-      test 10 -lt "$_G_count" && break
-    done
-    rm -f conftest.in conftest.tmp conftest.nl conftest.out
-  }
+$lt_unset CDPATH
 
-  func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin
-  GREP=$func_path_progs_result
-}
 
+# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
+# is ksh but when the shell is invoked as "sh" and the current value of
+# the _XPG environment variable is not equal to 1 (one), the special
+# positional parameter $0, within a function call, is the name of the
+# function.
+progpath="$0"
 
-## ------------------------------- ##
-## User overridable command paths. ##
-## ------------------------------- ##
 
-# All uppercase variable names are used for environment variables.  These
-# variables can be overridden by the user before calling a script that
-# uses them if a suitable command of that name is not already available
-# in the command search PATH.
 
 : ${CP="cp -f"}
-: ${ECHO="printf %s\n"}
-: ${EGREP="$GREP -E"}
-: ${FGREP="$GREP -F"}
-: ${LN_S="ln -s"}
+test "${ECHO+set}" = set || ECHO=${as_echo-'printf %s\n'}
 : ${MAKE="make"}
 : ${MKDIR="mkdir"}
 : ${MV="mv -f"}
 : ${RM="rm -f"}
 : ${SHELL="${CONFIG_SHELL-/bin/sh}"}
+: ${Xsed="$SED -e 1s/^X//"}
 
+# Global variables:
+EXIT_SUCCESS=0
+EXIT_FAILURE=1
+EXIT_MISMATCH=63  # $? = 63 is used to indicate version mismatch to missing.
+EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.
 
-## -------------------- ##
-## Useful sed snippets. ##
-## -------------------- ##
+exit_status=$EXIT_SUCCESS
 
-sed_dirname='s|/[^/]*$||'
-sed_basename='s|^.*/||'
+# Make sure IFS has a sensible default
+lt_nl='
+'
+IFS=" 	$lt_nl"
 
-# Sed substitution that helps us do robust quoting.  It backslashifies
-# metacharacters that are still active within double-quoted strings.
-sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
+dirname="s,/[^/]*$,,"
+basename="s,^.*/,,"
 
-# Same as above, but do not quote variable references.
-sed_double_quote_subst='s/\(["`\\]\)/\\\1/g'
+# func_dirname file append nondir_replacement
+# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
+# otherwise set result to NONDIR_REPLACEMENT.
+func_dirname ()
+{
+    func_dirname_result=`$ECHO "${1}" | $SED "$dirname"`
+    if test "X$func_dirname_result" = "X${1}"; then
+      func_dirname_result="${3}"
+    else
+      func_dirname_result="$func_dirname_result${2}"
+    fi
+} # func_dirname may be replaced by extended shell implementation
 
-# Sed substitution that turns a string into a regex matching for the
-# string literally.
-sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g'
 
-# Sed substitution that converts a w32 file name or path
-# that contains forward slashes, into one that contains
-# (escaped) backslashes.  A very naive implementation.
-sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
-
-# Re-'\' parameter expansions in output of sed_double_quote_subst that
-# were '\'-ed in input to the same.  If an odd number of '\' preceded a
-# '$' in input to sed_double_quote_subst, that '$' was protected from
-# expansion.  Since each input '\' is now two '\'s, look for any number
-# of runs of four '\'s followed by two '\'s and then a '$'.  '\' that '$'.
-_G_bs='\\'
-_G_bs2='\\\\'
-_G_bs4='\\\\\\\\'
-_G_dollar='\$'
-sed_double_backslash="\
-  s/$_G_bs4/&\\
-/g
-  s/^$_G_bs2$_G_dollar/$_G_bs&/
-  s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g
-  s/\n//g"
+# func_basename file
+func_basename ()
+{
+    func_basename_result=`$ECHO "${1}" | $SED "$basename"`
+} # func_basename may be replaced by extended shell implementation
 
 
-## ----------------- ##
-## Global variables. ##
-## ----------------- ##
+# func_dirname_and_basename file append nondir_replacement
+# perform func_basename and func_dirname in a single function
+# call:
+#   dirname:  Compute the dirname of FILE.  If nonempty,
+#             add APPEND to the result, otherwise set result
+#             to NONDIR_REPLACEMENT.
+#             value returned in "$func_dirname_result"
+#   basename: Compute filename of FILE.
+#             value retuned in "$func_basename_result"
+# Implementation must be kept synchronized with func_dirname
+# and func_basename. For efficiency, we do not delegate to
+# those functions but instead duplicate the functionality here.
+func_dirname_and_basename ()
+{
+    # Extract subdirectory from the argument.
+    func_dirname_result=`$ECHO "${1}" | $SED -e "$dirname"`
+    if test "X$func_dirname_result" = "X${1}"; then
+      func_dirname_result="${3}"
+    else
+      func_dirname_result="$func_dirname_result${2}"
+    fi
+    func_basename_result=`$ECHO "${1}" | $SED -e "$basename"`
+} # func_dirname_and_basename may be replaced by extended shell implementation
 
-# Except for the global variables explicitly listed below, the following
-# functions in the '^func_' namespace, and the '^require_' namespace
-# variables initialised in the 'Resource management' section, sourcing
-# this file will not pollute your global namespace with anything
-# else. There's no portable way to scope variables in Bourne shell
-# though, so actually running these functions will sometimes place
-# results into a variable named after the function, and often use
-# temporary variables in the '^_G_' namespace. If you are careful to
-# avoid using those namespaces casually in your sourcing script, things
-# should continue to work as you expect. And, of course, you can freely
-# overwrite any of the functions or variables defined here before
-# calling anything to customize them.
 
-EXIT_SUCCESS=0
-EXIT_FAILURE=1
-EXIT_MISMATCH=63  # $? = 63 is used to indicate version mismatch to missing.
-EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.
+# func_stripname prefix suffix name
+# strip PREFIX and SUFFIX off of NAME.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+# func_strip_suffix prefix name
+func_stripname ()
+{
+    case ${2} in
+      .*) func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%\\\\${2}\$%%"`;;
+      *)  func_stripname_result=`$ECHO "${3}" | $SED "s%^${1}%%; s%${2}\$%%"`;;
+    esac
+} # func_stripname may be replaced by extended shell implementation
 
-# Allow overriding, eg assuming that you follow the convention of
-# putting '$debug_cmd' at the start of all your functions, you can get
-# bash to show function call trace with:
-#
-#    debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name
-debug_cmd=${debug_cmd-":"}
-exit_cmd=:
 
-# By convention, finish your script with:
-#
-#    exit $exit_status
-#
-# so that you can set exit_status to non-zero if you want to indicate
-# something went wrong during execution without actually bailing out at
-# the point of failure.
-exit_status=$EXIT_SUCCESS
+# These SED scripts presuppose an absolute path with a trailing slash.
+pathcar='s,^/\([^/]*\).*$,\1,'
+pathcdr='s,^/[^/]*,,'
+removedotparts=':dotsl
+		s@/\./@/@g
+		t dotsl
+		s,/\.$,/,'
+collapseslashes='s@/\{1,\}@/@g'
+finalslash='s,/*$,/,'
 
-# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
-# is ksh but when the shell is invoked as "sh" and the current value of
-# the _XPG environment variable is not equal to 1 (one), the special
-# positional parameter $0, within a function call, is the name of the
-# function.
-progpath=$0
+# func_normal_abspath PATH
+# Remove doubled-up and trailing slashes, "." path components,
+# and cancel out any ".." path components in PATH after making
+# it an absolute path.
+#             value returned in "$func_normal_abspath_result"
+func_normal_abspath ()
+{
+  # Start from root dir and reassemble the path.
+  func_normal_abspath_result=
+  func_normal_abspath_tpath=$1
+  func_normal_abspath_altnamespace=
+  case $func_normal_abspath_tpath in
+    "")
+      # Empty path, that just means $cwd.
+      func_stripname '' '/' "`pwd`"
+      func_normal_abspath_result=$func_stripname_result
+      return
+    ;;
+    # The next three entries are used to spot a run of precisely
+    # two leading slashes without using negated character classes;
+    # we take advantage of case's first-match behaviour.
+    ///*)
+      # Unusual form of absolute path, do nothing.
+    ;;
+    //*)
+      # Not necessarily an ordinary path; POSIX reserves leading '//'
+      # and for example Cygwin uses it to access remote file shares
+      # over CIFS/SMB, so we conserve a leading double slash if found.
+      func_normal_abspath_altnamespace=/
+    ;;
+    /*)
+      # Absolute path, do nothing.
+    ;;
+    *)
+      # Relative path, prepend $cwd.
+      func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
+    ;;
+  esac
+  # Cancel out all the simple stuff to save iterations.  We also want
+  # the path to end with a slash for ease of parsing, so make sure
+  # there is one (and only one) here.
+  func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+        -e "$removedotparts" -e "$collapseslashes" -e "$finalslash"`
+  while :; do
+    # Processed it all yet?
+    if test "$func_normal_abspath_tpath" = / ; then
+      # If we ascended to the root using ".." the result may be empty now.
+      if test -z "$func_normal_abspath_result" ; then
+        func_normal_abspath_result=/
+      fi
+      break
+    fi
+    func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
+        -e "$pathcar"`
+    func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+        -e "$pathcdr"`
+    # Figure out what to do with it
+    case $func_normal_abspath_tcomponent in
+      "")
+        # Trailing empty path component, ignore it.
+      ;;
+      ..)
+        # Parent dir; strip last assembled component from result.
+        func_dirname "$func_normal_abspath_result"
+        func_normal_abspath_result=$func_dirname_result
+      ;;
+      *)
+        # Actual path component, append it.
+        func_normal_abspath_result=$func_normal_abspath_result/$func_normal_abspath_tcomponent
+      ;;
+    esac
+  done
+  # Restore leading double-slash if one was found on entry.
+  func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
+}
+
+# func_relative_path SRCDIR DSTDIR
+# generates a relative path from SRCDIR to DSTDIR, with a trailing
+# slash if non-empty, suitable for immediately appending a filename
+# without needing to append a separator.
+#             value returned in "$func_relative_path_result"
+func_relative_path ()
+{
+  func_relative_path_result=
+  func_normal_abspath "$1"
+  func_relative_path_tlibdir=$func_normal_abspath_result
+  func_normal_abspath "$2"
+  func_relative_path_tbindir=$func_normal_abspath_result
+
+  # Ascend the tree starting from libdir
+  while :; do
+    # check if we have found a prefix of bindir
+    case $func_relative_path_tbindir in
+      $func_relative_path_tlibdir)
+        # found an exact match
+        func_relative_path_tcancelled=
+        break
+        ;;
+      $func_relative_path_tlibdir*)
+        # found a matching prefix
+        func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
+        func_relative_path_tcancelled=$func_stripname_result
+        if test -z "$func_relative_path_result"; then
+          func_relative_path_result=.
+        fi
+        break
+        ;;
+      *)
+        func_dirname $func_relative_path_tlibdir
+        func_relative_path_tlibdir=${func_dirname_result}
+        if test "x$func_relative_path_tlibdir" = x ; then
+          # Have to descend all the way to the root!
+          func_relative_path_result=../$func_relative_path_result
+          func_relative_path_tcancelled=$func_relative_path_tbindir
+          break
+        fi
+        func_relative_path_result=../$func_relative_path_result
+        ;;
+    esac
+  done
+
+  # Now calculate path; take care to avoid doubling-up slashes.
+  func_stripname '' '/' "$func_relative_path_result"
+  func_relative_path_result=$func_stripname_result
+  func_stripname '/' '/' "$func_relative_path_tcancelled"
+  if test "x$func_stripname_result" != x ; then
+    func_relative_path_result=${func_relative_path_result}/${func_stripname_result}
+  fi
+
+  # Normalisation. If bindir is libdir, return empty string,
+  # else relative path ending with a slash; either way, target
+  # file name can be directly appended.
+  if test ! -z "$func_relative_path_result"; then
+    func_stripname './' '' "$func_relative_path_result/"
+    func_relative_path_result=$func_stripname_result
+  fi
+}
 
-# The name of this program.
-progname=`$ECHO "$progpath" |$SED "$sed_basename"`
+# The name of this program:
+func_dirname_and_basename "$progpath"
+progname=$func_basename_result
 
-# Make sure we have an absolute progpath for reexecution:
+# Make sure we have an absolute path for reexecution:
 case $progpath in
   [\\/]*|[A-Za-z]:\\*) ;;
   *[\\/]*)
-     progdir=`$ECHO "$progpath" |$SED "$sed_dirname"`
+     progdir=$func_dirname_result
      progdir=`cd "$progdir" && pwd`
-     progpath=$progdir/$progname
+     progpath="$progdir/$progname"
      ;;
   *)
-     _G_IFS=$IFS
+     save_IFS="$IFS"
      IFS=${PATH_SEPARATOR-:}
      for progdir in $PATH; do
-       IFS=$_G_IFS
+       IFS="$save_IFS"
        test -x "$progdir/$progname" && break
      done
-     IFS=$_G_IFS
+     IFS="$save_IFS"
      test -n "$progdir" || progdir=`pwd`
-     progpath=$progdir/$progname
+     progpath="$progdir/$progname"
      ;;
 esac
 
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+Xsed="${SED}"' -e 1s/^X//'
+sed_quote_subst='s/\([`"$\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\(["`\\]\)/\\\1/g'
 
-## ----------------- ##
-## Standard options. ##
-## ----------------- ##
+# Sed substitution that turns a string into a regex matching for the
+# string literally.
+sed_make_literal_regex='s,[].[^$\\*\/],\\&,g'
 
-# The following options affect the operation of the functions defined
-# below, and should be set appropriately depending on run-time para-
-# meters passed on the command line.
+# Sed substitution that converts a w32 file name or path
+# which contains forward slashes, into one that contains
+# (escaped) backslashes.  A very naive implementation.
+lt_sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
+
+# Re-`\' parameter expansions in output of double_quote_subst that were
+# `\'-ed in input to the same.  If an odd number of `\' preceded a '$'
+# in input to double_quote_subst, that '$' was protected from expansion.
+# Since each input `\' is now two `\'s, look for any number of runs of
+# four `\'s followed by two `\'s and then a '$'.  `\' that '$'.
+bs='\\'
+bs2='\\\\'
+bs4='\\\\\\\\'
+dollar='\$'
+sed_double_backslash="\
+  s/$bs4/&\\
+/g
+  s/^$bs2$dollar/$bs&/
+  s/\\([^$bs]\\)$bs2$dollar/\\1$bs2$bs$dollar/g
+  s/\n//g"
 
+# Standard options:
 opt_dry_run=false
+opt_help=false
 opt_quiet=false
 opt_verbose=false
+opt_warning=:
 
-# Categories 'all' and 'none' are always available.  Append any others
-# you will pass as the first argument to func_warning from your own
-# code.
-warning_categories=
+# func_echo arg...
+# Echo program name prefixed message, along with the current mode
+# name if it has been set yet.
+func_echo ()
+{
+    $ECHO "$progname: ${opt_mode+$opt_mode: }$*"
+}
 
-# By default, display warnings according to 'opt_warning_types'.  Set
-# 'warning_func'  to ':' to elide all warnings, or func_fatal_error to
-# treat the next displayed warning as a fatal error.
-warning_func=func_warn_and_continue
+# func_verbose arg...
+# Echo program name prefixed message in verbose mode only.
+func_verbose ()
+{
+    $opt_verbose && func_echo ${1+"$@"}
 
-# Set to 'all' to display all warnings, 'none' to suppress all
-# warnings, or a space delimited list of some subset of
-# 'warning_categories' to display only the listed warnings.
-opt_warning_types=all
+    # A bug in bash halts the script if the last line of a function
+    # fails when set -e is in force, so we need another command to
+    # work around that:
+    :
+}
 
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO "$*"
+}
 
-## -------------------- ##
-## Resource management. ##
-## -------------------- ##
+# func_error arg...
+# Echo program name prefixed message to standard error.
+func_error ()
+{
+    $ECHO "$progname: ${opt_mode+$opt_mode: }"${1+"$@"} 1>&2
+}
 
-# This section contains definitions for functions that each ensure a
-# particular resource (a file, or a non-empty configuration variable for
-# example) is available, and if appropriate to extract default values
-# from pertinent package files. Call them using their associated
-# 'require_*' variable to ensure that they are executed, at most, once.
-#
-# It's entirely deliberate that calling these functions can set
-# variables that don't obey the namespace limitations obeyed by the rest
-# of this file, in order that that they be as useful as possible to
-# callers.
+# func_warning arg...
+# Echo program name prefixed warning message to standard error.
+func_warning ()
+{
+    $opt_warning && $ECHO "$progname: ${opt_mode+$opt_mode: }warning: "${1+"$@"} 1>&2
 
+    # bash bug again:
+    :
+}
 
-# require_term_colors
-# -------------------
-# Allow display of bold text on terminals that support it.
-require_term_colors=func_require_term_colors
-func_require_term_colors ()
+# func_fatal_error arg...
+# Echo program name prefixed message to standard error, and exit.
+func_fatal_error ()
 {
-    $debug_cmd
-
-    test -t 1 && {
-      # COLORTERM and USE_ANSI_COLORS environment variables take
-      # precedence, because most terminfo databases neglect to describe
-      # whether color sequences are supported.
-      test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"}
-
-      if test 1 = "$USE_ANSI_COLORS"; then
-        # Standard ANSI escape sequences
-        tc_reset=''
-        tc_bold='';   tc_standout=''
-        tc_red='';   tc_green=''
-        tc_blue='';  tc_cyan=''
-      else
-        # Otherwise trust the terminfo database after all.
-        test -n "`tput sgr0 2>/dev/null`" && {
-          tc_reset=`tput sgr0`
-          test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold`
-          tc_standout=$tc_bold
-          test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`
-          test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`
-          test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`
-          test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`
-          test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`
-        }
-      fi
-    }
+    func_error ${1+"$@"}
+    exit $EXIT_FAILURE
+}
 
-    require_term_colors=:
+# func_fatal_help arg...
+# Echo program name prefixed message to standard error, followed by
+# a help hint, and exit.
+func_fatal_help ()
+{
+    func_error ${1+"$@"}
+    func_fatal_error "$help"
 }
+help="Try \`$progname --help' for more information."  ## default
 
 
-## ----------------- ##
-## Function library. ##
-## ----------------- ##
-
-# This section contains a variety of useful functions to call in your
-# scripts. Take note of the portable wrappers for features provided by
-# some modern shells, which will fall back to slower equivalents on
-# less featureful shells.
-
-
-# func_append VAR VALUE
-# ---------------------
-# Append VALUE onto the existing contents of VAR.
-
-  # We should try to minimise forks, especially on Windows where they are
-  # unreasonably slow, so skip the feature probes when bash or zsh are
-  # being used:
-  if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then
-    : ${_G_HAVE_ARITH_OP="yes"}
-    : ${_G_HAVE_XSI_OPS="yes"}
-    # The += operator was introduced in bash 3.1
-    case $BASH_VERSION in
-      [12].* | 3.0 | 3.0*) ;;
-      *)
-        : ${_G_HAVE_PLUSEQ_OP="yes"}
-        ;;
-    esac
-  fi
-
-  # _G_HAVE_PLUSEQ_OP
-  # Can be empty, in which case the shell is probed, "yes" if += is
-  # useable or anything else if it does not work.
-  test -z "$_G_HAVE_PLUSEQ_OP" \
-    && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \
-    && _G_HAVE_PLUSEQ_OP=yes
-
-if test yes = "$_G_HAVE_PLUSEQ_OP"
-then
-  # This is an XSI compatible shell, allowing a faster implementation...
-  eval 'func_append ()
-  {
-    $debug_cmd
-
-    eval "$1+=\$2"
-  }'
-else
-  # ...otherwise fall back to using expr, which is often a shell builtin.
-  func_append ()
-  {
-    $debug_cmd
-
-    eval "$1=\$$1\$2"
-  }
-fi
-
-
-# func_append_quoted VAR VALUE
-# ----------------------------
-# Quote VALUE and append to the end of shell variable VAR, separated
-# by a space.
-if test yes = "$_G_HAVE_PLUSEQ_OP"; then
-  eval 'func_append_quoted ()
-  {
-    $debug_cmd
-
-    func_quote_for_eval "$2"
-    eval "$1+=\\ \$func_quote_for_eval_result"
-  }'
-else
-  func_append_quoted ()
-  {
-    $debug_cmd
-
-    func_quote_for_eval "$2"
-    eval "$1=\$$1\\ \$func_quote_for_eval_result"
-  }
-fi
-
-
-# func_append_uniq VAR VALUE
-# --------------------------
-# Append unique VALUE onto the existing contents of VAR, assuming
-# entries are delimited by the first character of VALUE.  For example:
-#
-#   func_append_uniq options " --another-option option-argument"
-#
-# will only append to $options if " --another-option option-argument "
-# is not already present somewhere in $options already (note spaces at
-# each end implied by leading space in second argument).
-func_append_uniq ()
-{
-    $debug_cmd
-
-    eval _G_current_value='`$ECHO $'$1'`'
-    _G_delim=`expr "$2" : '\(.\)'`
-
-    case $_G_delim$_G_current_value$_G_delim in
-      *"$2$_G_delim"*) ;;
-      *) func_append "$@" ;;
-    esac
-}
-
-
-# func_arith TERM...
-# ------------------
-# Set func_arith_result to the result of evaluating TERMs.
-  test -z "$_G_HAVE_ARITH_OP" \
-    && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \
-    && _G_HAVE_ARITH_OP=yes
-
-if test yes = "$_G_HAVE_ARITH_OP"; then
-  eval 'func_arith ()
-  {
-    $debug_cmd
-
-    func_arith_result=$(( $* ))
-  }'
-else
-  func_arith ()
-  {
-    $debug_cmd
-
-    func_arith_result=`expr "$@"`
-  }
-fi
-
-
-# func_basename FILE
-# ------------------
-# Set func_basename_result to FILE with everything up to and including
-# the last / stripped.
-if test yes = "$_G_HAVE_XSI_OPS"; then
-  # If this shell supports suffix pattern removal, then use it to avoid
-  # forking. Hide the definitions single quotes in case the shell chokes
-  # on unsupported syntax...
-  _b='func_basename_result=${1##*/}'
-  _d='case $1 in
-        */*) func_dirname_result=${1%/*}$2 ;;
-        *  ) func_dirname_result=$3        ;;
-      esac'
-
-else
-  # ...otherwise fall back to using sed.
-  _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`'
-  _d='func_dirname_result=`$ECHO "$1"  |$SED "$sed_dirname"`
-      if test "X$func_dirname_result" = "X$1"; then
-        func_dirname_result=$3
-      else
-        func_append func_dirname_result "$2"
-      fi'
-fi
-
-eval 'func_basename ()
-{
-    $debug_cmd
-
-    '"$_b"'
-}'
-
-
-# func_dirname FILE APPEND NONDIR_REPLACEMENT
-# -------------------------------------------
-# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
-# otherwise set result to NONDIR_REPLACEMENT.
-eval 'func_dirname ()
-{
-    $debug_cmd
-
-    '"$_d"'
-}'
-
-
-# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT
-# --------------------------------------------------------
-# Perform func_basename and func_dirname in a single function
-# call:
-#   dirname:  Compute the dirname of FILE.  If nonempty,
-#             add APPEND to the result, otherwise set result
-#             to NONDIR_REPLACEMENT.
-#             value returned in "$func_dirname_result"
-#   basename: Compute filename of FILE.
-#             value retuned in "$func_basename_result"
-# For efficiency, we do not delegate to the functions above but instead
-# duplicate the functionality here.
-eval 'func_dirname_and_basename ()
-{
-    $debug_cmd
-
-    '"$_b"'
-    '"$_d"'
-}'
-
-
-# func_echo ARG...
-# ----------------
-# Echo program name prefixed message.
-func_echo ()
-{
-    $debug_cmd
-
-    _G_message=$*
-
-    func_echo_IFS=$IFS
-    IFS=$nl
-    for _G_line in $_G_message; do
-      IFS=$func_echo_IFS
-      $ECHO "$progname: $_G_line"
-    done
-    IFS=$func_echo_IFS
-}
-
-
-# func_echo_all ARG...
-# --------------------
-# Invoke $ECHO with all args, space-separated.
-func_echo_all ()
-{
-    $ECHO "$*"
-}
-
-
-# func_echo_infix_1 INFIX ARG...
-# ------------------------------
-# Echo program name, followed by INFIX on the first line, with any
-# additional lines not showing INFIX.
-func_echo_infix_1 ()
-{
-    $debug_cmd
-
-    $require_term_colors
-
-    _G_infix=$1; shift
-    _G_indent=$_G_infix
-    _G_prefix="$progname: $_G_infix: "
-    _G_message=$*
-
-    # Strip color escape sequences before counting printable length
-    for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan"
-    do
-      test -n "$_G_tc" && {
-        _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"`
-        _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"`
-      }
-    done
-    _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`"  " ## exclude from sc_prohibit_nested_quotes
-
-    func_echo_infix_1_IFS=$IFS
-    IFS=$nl
-    for _G_line in $_G_message; do
-      IFS=$func_echo_infix_1_IFS
-      $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2
-      _G_prefix=$_G_indent
-    done
-    IFS=$func_echo_infix_1_IFS
-}
-
-
-# func_error ARG...
-# -----------------
-# Echo program name prefixed message to standard error.
-func_error ()
-{
-    $debug_cmd
-
-    $require_term_colors
-
-    func_echo_infix_1 "  $tc_standout${tc_red}error$tc_reset" "$*" >&2
-}
-
-
-# func_fatal_error ARG...
-# -----------------------
-# Echo program name prefixed message to standard error, and exit.
-func_fatal_error ()
-{
-    $debug_cmd
-
-    func_error "$*"
-    exit $EXIT_FAILURE
-}
-
-
-# func_grep EXPRESSION FILENAME
-# -----------------------------
+# func_grep expression filename
 # Check whether EXPRESSION matches any line of FILENAME, without output.
 func_grep ()
 {
-    $debug_cmd
-
     $GREP "$1" "$2" >/dev/null 2>&1
 }
 
 
-# func_len STRING
-# ---------------
-# Set func_len_result to the length of STRING. STRING may not
-# start with a hyphen.
-  test -z "$_G_HAVE_XSI_OPS" \
-    && (eval 'x=a/b/c;
-      test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
-    && _G_HAVE_XSI_OPS=yes
-
-if test yes = "$_G_HAVE_XSI_OPS"; then
-  eval 'func_len ()
-  {
-    $debug_cmd
-
-    func_len_result=${#1}
-  }'
-else
-  func_len ()
-  {
-    $debug_cmd
-
-    func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
-  }
-fi
-
-
-# func_mkdir_p DIRECTORY-PATH
-# ---------------------------
+# func_mkdir_p directory-path
 # Make sure the entire path to DIRECTORY-PATH is available.
 func_mkdir_p ()
 {
-    $debug_cmd
-
-    _G_directory_path=$1
-    _G_dir_list=
+    my_directory_path="$1"
+    my_dir_list=
 
-    if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then
+    if test -n "$my_directory_path" && test "$opt_dry_run" != ":"; then
 
-      # Protect directory names starting with '-'
-      case $_G_directory_path in
-        -*) _G_directory_path=./$_G_directory_path ;;
+      # Protect directory names starting with `-'
+      case $my_directory_path in
+        -*) my_directory_path="./$my_directory_path" ;;
       esac
 
       # While some portion of DIR does not yet exist...
-      while test ! -d "$_G_directory_path"; do
+      while test ! -d "$my_directory_path"; do
         # ...make a list in topmost first order.  Use a colon delimited
 	# list incase some portion of path contains whitespace.
-        _G_dir_list=$_G_directory_path:$_G_dir_list
+        my_dir_list="$my_directory_path:$my_dir_list"
 
         # If the last portion added has no slash in it, the list is done
-        case $_G_directory_path in */*) ;; *) break ;; esac
+        case $my_directory_path in */*) ;; *) break ;; esac
 
         # ...otherwise throw away the child directory and loop
-        _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"`
+        my_directory_path=`$ECHO "$my_directory_path" | $SED -e "$dirname"`
       done
-      _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'`
+      my_dir_list=`$ECHO "$my_dir_list" | $SED 's,:*$,,'`
 
-      func_mkdir_p_IFS=$IFS; IFS=:
-      for _G_dir in $_G_dir_list; do
-	IFS=$func_mkdir_p_IFS
-        # mkdir can fail with a 'File exist' error if two processes
+      save_mkdir_p_IFS="$IFS"; IFS=':'
+      for my_dir in $my_dir_list; do
+	IFS="$save_mkdir_p_IFS"
+        # mkdir can fail with a `File exist' error if two processes
         # try to create one of the directories concurrently.  Don't
         # stop in that case!
-        $MKDIR "$_G_dir" 2>/dev/null || :
+        $MKDIR "$my_dir" 2>/dev/null || :
       done
-      IFS=$func_mkdir_p_IFS
+      IFS="$save_mkdir_p_IFS"
 
       # Bail out if we (or some other process) failed to create a directory.
-      test -d "$_G_directory_path" || \
-        func_fatal_error "Failed to create '$1'"
+      test -d "$my_directory_path" || \
+        func_fatal_error "Failed to create \`$1'"
     fi
 }
 
 
-# func_mktempdir [BASENAME]
-# -------------------------
+# func_mktempdir [string]
 # Make a temporary directory that won't clash with other running
 # libtool processes, and avoids race conditions if possible.  If
-# given, BASENAME is the basename for that directory.
+# given, STRING is the basename for that directory.
 func_mktempdir ()
 {
-    $debug_cmd
+    my_template="${TMPDIR-/tmp}/${1-$progname}"
 
-    _G_template=${TMPDIR-/tmp}/${1-$progname}
-
-    if test : = "$opt_dry_run"; then
+    if test "$opt_dry_run" = ":"; then
       # Return a directory name, but don't create it in dry-run mode
-      _G_tmpdir=$_G_template-$$
+      my_tmpdir="${my_template}-$$"
     else
 
       # If mktemp works, use that first and foremost
-      _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null`
+      my_tmpdir=`mktemp -d "${my_template}-XXXXXXXX" 2>/dev/null`
 
-      if test ! -d "$_G_tmpdir"; then
+      if test ! -d "$my_tmpdir"; then
         # Failing that, at least try and use $RANDOM to avoid a race
-        _G_tmpdir=$_G_template-${RANDOM-0}$$
+        my_tmpdir="${my_template}-${RANDOM-0}$$"
 
-        func_mktempdir_umask=`umask`
+        save_mktempdir_umask=`umask`
         umask 0077
-        $MKDIR "$_G_tmpdir"
-        umask $func_mktempdir_umask
+        $MKDIR "$my_tmpdir"
+        umask $save_mktempdir_umask
       fi
 
       # If we're not in dry-run mode, bomb out on failure
-      test -d "$_G_tmpdir" || \
-        func_fatal_error "cannot create temporary directory '$_G_tmpdir'"
-    fi
-
-    $ECHO "$_G_tmpdir"
-}
-
-
-# func_normal_abspath PATH
-# ------------------------
-# Remove doubled-up and trailing slashes, "." path components,
-# and cancel out any ".." path components in PATH after making
-# it an absolute path.
-func_normal_abspath ()
-{
-    $debug_cmd
-
-    # These SED scripts presuppose an absolute path with a trailing slash.
-    _G_pathcar='s|^/\([^/]*\).*$|\1|'
-    _G_pathcdr='s|^/[^/]*||'
-    _G_removedotparts=':dotsl
-		s|/\./|/|g
-		t dotsl
-		s|/\.$|/|'
-    _G_collapseslashes='s|/\{1,\}|/|g'
-    _G_finalslash='s|/*$|/|'
-
-    # Start from root dir and reassemble the path.
-    func_normal_abspath_result=
-    func_normal_abspath_tpath=$1
-    func_normal_abspath_altnamespace=
-    case $func_normal_abspath_tpath in
-      "")
-        # Empty path, that just means $cwd.
-        func_stripname '' '/' "`pwd`"
-        func_normal_abspath_result=$func_stripname_result
-        return
-        ;;
-      # The next three entries are used to spot a run of precisely
-      # two leading slashes without using negated character classes;
-      # we take advantage of case's first-match behaviour.
-      ///*)
-        # Unusual form of absolute path, do nothing.
-        ;;
-      //*)
-        # Not necessarily an ordinary path; POSIX reserves leading '//'
-        # and for example Cygwin uses it to access remote file shares
-        # over CIFS/SMB, so we conserve a leading double slash if found.
-        func_normal_abspath_altnamespace=/
-        ;;
-      /*)
-        # Absolute path, do nothing.
-        ;;
-      *)
-        # Relative path, prepend $cwd.
-        func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
-        ;;
-    esac
-
-    # Cancel out all the simple stuff to save iterations.  We also want
-    # the path to end with a slash for ease of parsing, so make sure
-    # there is one (and only one) here.
-    func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
-          -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"`
-    while :; do
-      # Processed it all yet?
-      if test / = "$func_normal_abspath_tpath"; then
-        # If we ascended to the root using ".." the result may be empty now.
-        if test -z "$func_normal_abspath_result"; then
-          func_normal_abspath_result=/
-        fi
-        break
-      fi
-      func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
-          -e "$_G_pathcar"`
-      func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
-          -e "$_G_pathcdr"`
-      # Figure out what to do with it
-      case $func_normal_abspath_tcomponent in
-        "")
-          # Trailing empty path component, ignore it.
-          ;;
-        ..)
-          # Parent dir; strip last assembled component from result.
-          func_dirname "$func_normal_abspath_result"
-          func_normal_abspath_result=$func_dirname_result
-          ;;
-        *)
-          # Actual path component, append it.
-          func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent"
-          ;;
-      esac
-    done
-    # Restore leading double-slash if one was found on entry.
-    func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
-}
-
-
-# func_notquiet ARG...
-# --------------------
-# Echo program name prefixed message only when not in quiet mode.
-func_notquiet ()
-{
-    $debug_cmd
-
-    $opt_quiet || func_echo ${1+"$@"}
-
-    # A bug in bash halts the script if the last line of a function
-    # fails when set -e is in force, so we need another command to
-    # work around that:
-    :
-}
-
-
-# func_relative_path SRCDIR DSTDIR
-# --------------------------------
-# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR.
-func_relative_path ()
-{
-    $debug_cmd
-
-    func_relative_path_result=
-    func_normal_abspath "$1"
-    func_relative_path_tlibdir=$func_normal_abspath_result
-    func_normal_abspath "$2"
-    func_relative_path_tbindir=$func_normal_abspath_result
-
-    # Ascend the tree starting from libdir
-    while :; do
-      # check if we have found a prefix of bindir
-      case $func_relative_path_tbindir in
-        $func_relative_path_tlibdir)
-          # found an exact match
-          func_relative_path_tcancelled=
-          break
-          ;;
-        $func_relative_path_tlibdir*)
-          # found a matching prefix
-          func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
-          func_relative_path_tcancelled=$func_stripname_result
-          if test -z "$func_relative_path_result"; then
-            func_relative_path_result=.
-          fi
-          break
-          ;;
-        *)
-          func_dirname $func_relative_path_tlibdir
-          func_relative_path_tlibdir=$func_dirname_result
-          if test -z "$func_relative_path_tlibdir"; then
-            # Have to descend all the way to the root!
-            func_relative_path_result=../$func_relative_path_result
-            func_relative_path_tcancelled=$func_relative_path_tbindir
-            break
-          fi
-          func_relative_path_result=../$func_relative_path_result
-          ;;
-      esac
-    done
-
-    # Now calculate path; take care to avoid doubling-up slashes.
-    func_stripname '' '/' "$func_relative_path_result"
-    func_relative_path_result=$func_stripname_result
-    func_stripname '/' '/' "$func_relative_path_tcancelled"
-    if test -n "$func_stripname_result"; then
-      func_append func_relative_path_result "/$func_stripname_result"
-    fi
-
-    # Normalisation. If bindir is libdir, return '.' else relative path.
-    if test -n "$func_relative_path_result"; then
-      func_stripname './' '' "$func_relative_path_result"
-      func_relative_path_result=$func_stripname_result
+      test -d "$my_tmpdir" || \
+        func_fatal_error "cannot create temporary directory \`$my_tmpdir'"
     fi
 
-    test -n "$func_relative_path_result" || func_relative_path_result=.
-
-    :
+    $ECHO "$my_tmpdir"
 }
 
 
-# func_quote_for_eval ARG...
-# --------------------------
-# Aesthetically quote ARGs to be evaled later.
-# This function returns two values:
-#   i) func_quote_for_eval_result
-#      double-quoted, suitable for a subsequent eval
-#  ii) func_quote_for_eval_unquoted_result
-#      has all characters that are still active within double
-#      quotes backslashified.
+# func_quote_for_eval arg
+# Aesthetically quote ARG to be evaled later.
+# This function returns two values: FUNC_QUOTE_FOR_EVAL_RESULT
+# is double-quoted, suitable for a subsequent eval, whereas
+# FUNC_QUOTE_FOR_EVAL_UNQUOTED_RESULT has merely all characters
+# which are still active within double quotes backslashified.
 func_quote_for_eval ()
 {
-    $debug_cmd
-
-    func_quote_for_eval_unquoted_result=
-    func_quote_for_eval_result=
-    while test 0 -lt $#; do
-      case $1 in
-        *[\\\`\"\$]*)
-	  _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;;
-        *)
-          _G_unquoted_arg=$1 ;;
-      esac
-      if test -n "$func_quote_for_eval_unquoted_result"; then
-	func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg"
-      else
-        func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg"
-      fi
-
-      case $_G_unquoted_arg in
-        # Double-quote args containing shell metacharacters to delay
-        # word splitting, command substitution and variable expansion
-        # for a subsequent eval.
-        # Many Bourne shells cannot handle close brackets correctly
-        # in scan sets, so we specify it separately.
-        *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
-          _G_quoted_arg=\"$_G_unquoted_arg\"
-          ;;
-        *)
-          _G_quoted_arg=$_G_unquoted_arg
-	  ;;
-      esac
-
-      if test -n "$func_quote_for_eval_result"; then
-	func_append func_quote_for_eval_result " $_G_quoted_arg"
-      else
-        func_append func_quote_for_eval_result "$_G_quoted_arg"
-      fi
-      shift
-    done
-}
-
-
-# func_quote_for_expand ARG
-# -------------------------
-# Aesthetically quote ARG to be evaled later; same as above,
-# but do not quote variable references.
-func_quote_for_expand ()
-{
-    $debug_cmd
-
     case $1 in
-      *[\\\`\"]*)
-	_G_arg=`$ECHO "$1" | $SED \
-	    -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;;
+      *[\\\`\"\$]*)
+	func_quote_for_eval_unquoted_result=`$ECHO "$1" | $SED "$sed_quote_subst"` ;;
       *)
-        _G_arg=$1 ;;
+        func_quote_for_eval_unquoted_result="$1" ;;
     esac
 
-    case $_G_arg in
+    case $func_quote_for_eval_unquoted_result in
       # Double-quote args containing shell metacharacters to delay
-      # word splitting and command substitution for a subsequent eval.
+      # word splitting, command substitution and and variable
+      # expansion for a subsequent eval.
       # Many Bourne shells cannot handle close brackets correctly
       # in scan sets, so we specify it separately.
       *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
-        _G_arg=\"$_G_arg\"
+        func_quote_for_eval_result="\"$func_quote_for_eval_unquoted_result\""
         ;;
+      *)
+        func_quote_for_eval_result="$func_quote_for_eval_unquoted_result"
     esac
-
-    func_quote_for_expand_result=$_G_arg
-}
-
-
-# func_stripname PREFIX SUFFIX NAME
-# ---------------------------------
-# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result.
-# PREFIX and SUFFIX must not contain globbing or regex special
-# characters, hashes, percent signs, but SUFFIX may contain a leading
-# dot (in which case that matches only a dot).
-if test yes = "$_G_HAVE_XSI_OPS"; then
-  eval 'func_stripname ()
-  {
-    $debug_cmd
-
-    # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
-    # positional parameters, so assign one to ordinary variable first.
-    func_stripname_result=$3
-    func_stripname_result=${func_stripname_result#"$1"}
-    func_stripname_result=${func_stripname_result%"$2"}
-  }'
-else
-  func_stripname ()
-  {
-    $debug_cmd
-
-    case $2 in
-      .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;;
-      *)  func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;;
-    esac
-  }
-fi
-
-
-# func_show_eval CMD [FAIL_EXP]
-# -----------------------------
-# Unless opt_quiet is true, then output CMD.  Then, if opt_dryrun is
-# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it.
-func_show_eval ()
-{
-    $debug_cmd
-
-    _G_cmd=$1
-    _G_fail_exp=${2-':'}
-
-    func_quote_for_expand "$_G_cmd"
-    eval "func_notquiet $func_quote_for_expand_result"
-
-    $opt_dry_run || {
-      eval "$_G_cmd"
-      _G_status=$?
-      if test 0 -ne "$_G_status"; then
-	eval "(exit $_G_status); $_G_fail_exp"
-      fi
-    }
 }
 
 
-# func_show_eval_locale CMD [FAIL_EXP]
-# ------------------------------------
-# Unless opt_quiet is true, then output CMD.  Then, if opt_dryrun is
-# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
-# is given, then evaluate it.  Use the saved locale for evaluation.
-func_show_eval_locale ()
-{
-    $debug_cmd
-
-    _G_cmd=$1
-    _G_fail_exp=${2-':'}
-
-    $opt_quiet || {
-      func_quote_for_expand "$_G_cmd"
-      eval "func_echo $func_quote_for_expand_result"
-    }
-
-    $opt_dry_run || {
-      eval "$_G_user_locale
-	    $_G_cmd"
-      _G_status=$?
-      eval "$_G_safe_locale"
-      if test 0 -ne "$_G_status"; then
-	eval "(exit $_G_status); $_G_fail_exp"
-      fi
-    }
-}
-
-
-# func_tr_sh
-# ----------
-# Turn $1 into a string suitable for a shell variable name.
-# Result is stored in $func_tr_sh_result.  All characters
-# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
-# if $1 begins with a digit, a '_' is prepended as well.
-func_tr_sh ()
+# func_quote_for_expand arg
+# Aesthetically quote ARG to be evaled later; same as above,
+# but do not quote variable references.
+func_quote_for_expand ()
 {
-    $debug_cmd
-
     case $1 in
-    [0-9]* | *[!a-zA-Z0-9_]*)
-      func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'`
-      ;;
-    * )
-      func_tr_sh_result=$1
-      ;;
-    esac
-}
-
-
-# func_verbose ARG...
-# -------------------
-# Echo program name prefixed message in verbose mode only.
-func_verbose ()
-{
-    $debug_cmd
-
-    $opt_verbose && func_echo "$*"
-
-    :
-}
-
-
-# func_warn_and_continue ARG...
-# -----------------------------
-# Echo program name prefixed warning message to standard error.
-func_warn_and_continue ()
-{
-    $debug_cmd
-
-    $require_term_colors
-
-    func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2
-}
-
-
-# func_warning CATEGORY ARG...
-# ----------------------------
-# Echo program name prefixed warning message to standard error. Warning
-# messages can be filtered according to CATEGORY, where this function
-# elides messages where CATEGORY is not listed in the global variable
-# 'opt_warning_types'.
-func_warning ()
-{
-    $debug_cmd
-
-    # CATEGORY must be in the warning_categories list!
-    case " $warning_categories " in
-      *" $1 "*) ;;
-      *) func_internal_error "invalid warning category '$1'" ;;
-    esac
-
-    _G_category=$1
-    shift
-
-    case " $opt_warning_types " in
-      *" $_G_category "*) $warning_func ${1+"$@"} ;;
-    esac
-}
-
-
-# func_sort_ver VER1 VER2
-# -----------------------
-# 'sort -V' is not generally available.
-# Note this deviates from the version comparison in automake
-# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
-# but this should suffice as we won't be specifying old
-# version formats or redundant trailing .0 in bootstrap.conf.
-# If we did want full compatibility then we should probably
-# use m4_version_compare from autoconf.
-func_sort_ver ()
-{
-    $debug_cmd
-
-    printf '%s\n%s\n' "$1" "$2" \
-      | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n
-}
-
-# func_lt_ver PREV CURR
-# ---------------------
-# Return true if PREV and CURR are in the correct order according to
-# func_sort_ver, otherwise false.  Use it like this:
-#
-#  func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..."
-func_lt_ver ()
-{
-    $debug_cmd
-
-    test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q`
-}
-
-
-# Local variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
-# time-stamp-time-zone: "UTC"
-# End:
-#! /bin/sh
-
-# Set a version string for this script.
-scriptversion=2014-01-07.03; # UTC
-
-# A portable, pluggable option parser for Bourne shell.
-# Written by Gary V. Vaughan, 2010
-
-# Copyright (C) 2010-2015 Free Software Foundation, Inc.
-# This is free software; see the source for copying conditions.  There is NO
-# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-# Please report bugs or propose patches to [e-mail].
-
-
-## ------ ##
-## Usage. ##
-## ------ ##
-
-# This file is a library for parsing options in your shell scripts along
-# with assorted other useful supporting features that you can make use
-# of too.
-#
-# For the simplest scripts you might need only:
-#
-#   #!/bin/sh
-#   . relative/path/to/funclib.sh
-#   . relative/path/to/options-parser
-#   scriptversion=1.0
-#   func_options ${1+"$@"}
-#   eval set dummy "$func_options_result"; shift
-#   ...rest of your script...
-#
-# In order for the '--version' option to work, you will need to have a
-# suitably formatted comment like the one at the top of this file
-# starting with '# Written by ' and ending with '# warranty; '.
-#
-# For '-h' and '--help' to work, you will also need a one line
-# description of your script's purpose in a comment directly above the
-# '# Written by ' line, like the one at the top of this file.
-#
-# The default options also support '--debug', which will turn on shell
-# execution tracing (see the comment above debug_cmd below for another
-# use), and '--verbose' and the func_verbose function to allow your script
-# to display verbose messages only when your user has specified
-# '--verbose'.
-#
-# After sourcing this file, you can plug processing for additional
-# options by amending the variables from the 'Configuration' section
-# below, and following the instructions in the 'Option parsing'
-# section further down.
-
-## -------------- ##
-## Configuration. ##
-## -------------- ##
-
-# You should override these variables in your script after sourcing this
-# file so that they reflect the customisations you have added to the
-# option parser.
-
-# The usage line for option parsing errors and the start of '-h' and
-# '--help' output messages. You can embed shell variables for delayed
-# expansion at the time the message is displayed, but you will need to
-# quote other shell meta-characters carefully to prevent them being
-# expanded when the contents are evaled.
-usage='$progpath [OPTION]...'
-
-# Short help message in response to '-h' and '--help'.  Add to this or
-# override it after sourcing this library to reflect the full set of
-# options your script accepts.
-usage_message="\
-       --debug        enable verbose shell tracing
-   -W, --warnings=CATEGORY
-                      report the warnings falling in CATEGORY [all]
-   -v, --verbose      verbosely report processing
-       --version      print version information and exit
-   -h, --help         print short or long help message and exit
-"
-
-# Additional text appended to 'usage_message' in response to '--help'.
-long_help_message="
-Warning categories include:
-       'all'          show all warnings
-       'none'         turn off all the warnings
-       'error'        warnings are treated as fatal errors"
-
-# Help message printed before fatal option parsing errors.
-fatal_help="Try '\$progname --help' for more information."
-
-
-
-## ------------------------- ##
-## Hook function management. ##
-## ------------------------- ##
-
-# This section contains functions for adding, removing, and running hooks
-# to the main code.  A hook is just a named list of of function, that can
-# be run in order later on.
-
-# func_hookable FUNC_NAME
-# -----------------------
-# Declare that FUNC_NAME will run hooks added with
-# 'func_add_hook FUNC_NAME ...'.
-func_hookable ()
-{
-    $debug_cmd
-
-    func_append hookable_fns " $1"
-}
-
-
-# func_add_hook FUNC_NAME HOOK_FUNC
-# ---------------------------------
-# Request that FUNC_NAME call HOOK_FUNC before it returns.  FUNC_NAME must
-# first have been declared "hookable" by a call to 'func_hookable'.
-func_add_hook ()
-{
-    $debug_cmd
-
-    case " $hookable_fns " in
-      *" $1 "*) ;;
-      *) func_fatal_error "'$1' does not accept hook functions." ;;
-    esac
-
-    eval func_append ${1}_hooks '" $2"'
-}
-
-
-# func_remove_hook FUNC_NAME HOOK_FUNC
-# ------------------------------------
-# Remove HOOK_FUNC from the list of functions called by FUNC_NAME.
-func_remove_hook ()
-{
-    $debug_cmd
-
-    eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`'
-}
-
-
-# func_run_hooks FUNC_NAME [ARG]...
-# ---------------------------------
-# Run all hook functions registered to FUNC_NAME.
-# It is assumed that the list of hook functions contains nothing more
-# than a whitespace-delimited list of legal shell function names, and
-# no effort is wasted trying to catch shell meta-characters or preserve
-# whitespace.
-func_run_hooks ()
-{
-    $debug_cmd
-
-    case " $hookable_fns " in
-      *" $1 "*) ;;
-      *) func_fatal_error "'$1' does not support hook funcions.n" ;;
+      *[\\\`\"]*)
+	my_arg=`$ECHO "$1" | $SED \
+	    -e "$double_quote_subst" -e "$sed_double_backslash"` ;;
+      *)
+        my_arg="$1" ;;
     esac
 
-    eval _G_hook_fns=\$$1_hooks; shift
-
-    for _G_hook in $_G_hook_fns; do
-      eval $_G_hook '"$@"'
-
-      # store returned options list back into positional
-      # parameters for next 'cmd' execution.
-      eval _G_hook_result=\$${_G_hook}_result
-      eval set dummy "$_G_hook_result"; shift
-    done
-
-    func_quote_for_eval ${1+"$@"}
-    func_run_hooks_result=$func_quote_for_eval_result
-}
-
-
-
-## --------------- ##
-## Option parsing. ##
-## --------------- ##
-
-# In order to add your own option parsing hooks, you must accept the
-# full positional parameter list in your hook function, remove any
-# options that you action, and then pass back the remaining unprocessed
-# options in '<hooked_function_name>_result', escaped suitably for
-# 'eval'.  Like this:
-#
-#    my_options_prep ()
-#    {
-#        $debug_cmd
-#
-#        # Extend the existing usage message.
-#        usage_message=$usage_message'
-#      -s, --silent       don'\''t print informational messages
-#    '
-#
-#        func_quote_for_eval ${1+"$@"}
-#        my_options_prep_result=$func_quote_for_eval_result
-#    }
-#    func_add_hook func_options_prep my_options_prep
-#
-#
-#    my_silent_option ()
-#    {
-#        $debug_cmd
-#
-#        # Note that for efficiency, we parse as many options as we can
-#        # recognise in a loop before passing the remainder back to the
-#        # caller on the first unrecognised argument we encounter.
-#        while test $# -gt 0; do
-#          opt=$1; shift
-#          case $opt in
-#            --silent|-s) opt_silent=: ;;
-#            # Separate non-argument short options:
-#            -s*)         func_split_short_opt "$_G_opt"
-#                         set dummy "$func_split_short_opt_name" \
-#                             "-$func_split_short_opt_arg" ${1+"$@"}
-#                         shift
-#                         ;;
-#            *)            set dummy "$_G_opt" "$*"; shift; break ;;
-#          esac
-#        done
-#
-#        func_quote_for_eval ${1+"$@"}
-#        my_silent_option_result=$func_quote_for_eval_result
-#    }
-#    func_add_hook func_parse_options my_silent_option
-#
-#
-#    my_option_validation ()
-#    {
-#        $debug_cmd
-#
-#        $opt_silent && $opt_verbose && func_fatal_help "\
-#    '--silent' and '--verbose' options are mutually exclusive."
-#
-#        func_quote_for_eval ${1+"$@"}
-#        my_option_validation_result=$func_quote_for_eval_result
-#    }
-#    func_add_hook func_validate_options my_option_validation
-#
-# You'll alse need to manually amend $usage_message to reflect the extra
-# options you parse.  It's preferable to append if you can, so that
-# multiple option parsing hooks can be added safely.
-
-
-# func_options [ARG]...
-# ---------------------
-# All the functions called inside func_options are hookable. See the
-# individual implementations for details.
-func_hookable func_options
-func_options ()
-{
-    $debug_cmd
-
-    func_options_prep ${1+"$@"}
-    eval func_parse_options \
-        ${func_options_prep_result+"$func_options_prep_result"}
-    eval func_validate_options \
-        ${func_parse_options_result+"$func_parse_options_result"}
-
-    eval func_run_hooks func_options \
-        ${func_validate_options_result+"$func_validate_options_result"}
+    case $my_arg in
+      # Double-quote args containing shell metacharacters to delay
+      # word splitting and command substitution for a subsequent eval.
+      # Many Bourne shells cannot handle close brackets correctly
+      # in scan sets, so we specify it separately.
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+        my_arg="\"$my_arg\""
+        ;;
+    esac
 
-    # save modified positional parameters for caller
-    func_options_result=$func_run_hooks_result
+    func_quote_for_expand_result="$my_arg"
 }
 
 
-# func_options_prep [ARG]...
-# --------------------------
-# All initialisations required before starting the option parse loop.
-# Note that when calling hook functions, we pass through the list of
-# positional parameters.  If a hook function modifies that list, and
-# needs to propogate that back to rest of this script, then the complete
-# modified list must be put in 'func_run_hooks_result' before
-# returning.
-func_hookable func_options_prep
-func_options_prep ()
+# func_show_eval cmd [fail_exp]
+# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.
+func_show_eval ()
 {
-    $debug_cmd
-
-    # Option defaults:
-    opt_verbose=false
-    opt_warning_types=
+    my_cmd="$1"
+    my_fail_exp="${2-:}"
 
-    func_run_hooks func_options_prep ${1+"$@"}
+    ${opt_silent-false} || {
+      func_quote_for_expand "$my_cmd"
+      eval "func_echo $func_quote_for_expand_result"
+    }
 
-    # save modified positional parameters for caller
-    func_options_prep_result=$func_run_hooks_result
+    if ${opt_dry_run-false}; then :; else
+      eval "$my_cmd"
+      my_status=$?
+      if test "$my_status" -eq 0; then :; else
+	eval "(exit $my_status); $my_fail_exp"
+      fi
+    fi
 }
 
 
-# func_parse_options [ARG]...
-# ---------------------------
-# The main option parsing loop.
-func_hookable func_parse_options
-func_parse_options ()
+# func_show_eval_locale cmd [fail_exp]
+# Unless opt_silent is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.  Use the saved locale for evaluation.
+func_show_eval_locale ()
 {
-    $debug_cmd
-
-    func_parse_options_result=
-
-    # this just eases exit handling
-    while test $# -gt 0; do
-      # Defer to hook functions for initial option parsing, so they
-      # get priority in the event of reusing an option name.
-      func_run_hooks func_parse_options ${1+"$@"}
-
-      # Adjust func_parse_options positional parameters to match
-      eval set dummy "$func_run_hooks_result"; shift
-
-      # Break out of the loop if we already parsed every option.
-      test $# -gt 0 || break
-
-      _G_opt=$1
-      shift
-      case $_G_opt in
-        --debug|-x)   debug_cmd='set -x'
-                      func_echo "enabling shell trace mode"
-                      $debug_cmd
-                      ;;
-
-        --no-warnings|--no-warning|--no-warn)
-                      set dummy --warnings none ${1+"$@"}
-                      shift
-		      ;;
+    my_cmd="$1"
+    my_fail_exp="${2-:}"
 
-        --warnings|--warning|-W)
-                      test $# = 0 && func_missing_arg $_G_opt && break
-                      case " $warning_categories $1" in
-                        *" $1 "*)
-                          # trailing space prevents matching last $1 above
-                          func_append_uniq opt_warning_types " $1"
-                          ;;
-                        *all)
-                          opt_warning_types=$warning_categories
-                          ;;
-                        *none)
-                          opt_warning_types=none
-                          warning_func=:
-                          ;;
-                        *error)
-                          opt_warning_types=$warning_categories
-                          warning_func=func_fatal_error
-                          ;;
-                        *)
-                          func_fatal_error \
-                             "unsupported warning category: '$1'"
-                          ;;
-                      esac
-                      shift
-                      ;;
-
-        --verbose|-v) opt_verbose=: ;;
-        --version)    func_version ;;
-        -\?|-h)       func_usage ;;
-        --help)       func_help ;;
-
-	# Separate optargs to long options (plugins may need this):
-	--*=*)        func_split_equals "$_G_opt"
-	              set dummy "$func_split_equals_lhs" \
-                          "$func_split_equals_rhs" ${1+"$@"}
-                      shift
-                      ;;
-
-       # Separate optargs to short options:
-        -W*)
-                      func_split_short_opt "$_G_opt"
-                      set dummy "$func_split_short_opt_name" \
-                          "$func_split_short_opt_arg" ${1+"$@"}
-                      shift
-                      ;;
-
-        # Separate non-argument short options:
-        -\?*|-h*|-v*|-x*)
-                      func_split_short_opt "$_G_opt"
-                      set dummy "$func_split_short_opt_name" \
-                          "-$func_split_short_opt_arg" ${1+"$@"}
-                      shift
-                      ;;
-
-        --)           break ;;
-        -*)           func_fatal_help "unrecognised option: '$_G_opt'" ;;
-        *)            set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
-      esac
-    done
+    ${opt_silent-false} || {
+      func_quote_for_expand "$my_cmd"
+      eval "func_echo $func_quote_for_expand_result"
+    }
 
-    # save modified positional parameters for caller
-    func_quote_for_eval ${1+"$@"}
-    func_parse_options_result=$func_quote_for_eval_result
+    if ${opt_dry_run-false}; then :; else
+      eval "$lt_user_locale
+	    $my_cmd"
+      my_status=$?
+      eval "$lt_safe_locale"
+      if test "$my_status" -eq 0; then :; else
+	eval "(exit $my_status); $my_fail_exp"
+      fi
+    fi
 }
 
-
-# func_validate_options [ARG]...
-# ------------------------------
-# Perform any sanity checks on option settings and/or unconsumed
-# arguments.
-func_hookable func_validate_options
-func_validate_options ()
+# func_tr_sh
+# Turn $1 into a string suitable for a shell variable name.
+# Result is stored in $func_tr_sh_result.  All characters
+# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
+# if $1 begins with a digit, a '_' is prepended as well.
+func_tr_sh ()
 {
-    $debug_cmd
-
-    # Display all warnings if -W was not given.
-    test -n "$opt_warning_types" || opt_warning_types=" $warning_categories"
-
-    func_run_hooks func_validate_options ${1+"$@"}
-
-    # Bail if the options were screwed!
-    $exit_cmd $EXIT_FAILURE
-
-    # save modified positional parameters for caller
-    func_validate_options_result=$func_run_hooks_result
+  case $1 in
+  [0-9]* | *[!a-zA-Z0-9_]*)
+    func_tr_sh_result=`$ECHO "$1" | $SED 's/^\([0-9]\)/_\1/; s/[^a-zA-Z0-9_]/_/g'`
+    ;;
+  * )
+    func_tr_sh_result=$1
+    ;;
+  esac
 }
 
 
+# func_version
+# Echo version message to standard output and exit.
+func_version ()
+{
+    $opt_debug
 
-## ----------------- ##
-## Helper functions. ##
-## ----------------- ##
-
-# This section contains the helper functions used by the rest of the
-# hookable option parser framework in ascii-betical order.
-
+    $SED -n '/(C)/!b go
+	:more
+	/\./!{
+	  N
+	  s/\n# / /
+	  b more
+	}
+	:go
+	/^# '$PROGRAM' (GNU /,/# warranty; / {
+        s/^# //
+	s/^# *$//
+        s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/
+        p
+     }' < "$progpath"
+     exit $?
+}
 
-# func_fatal_help ARG...
-# ----------------------
-# Echo program name prefixed message to standard error, followed by
-# a help hint, and exit.
-func_fatal_help ()
+# func_usage
+# Echo short help message to standard output and exit.
+func_usage ()
 {
-    $debug_cmd
+    $opt_debug
 
-    eval \$ECHO \""Usage: $usage"\"
-    eval \$ECHO \""$fatal_help"\"
-    func_error ${1+"$@"}
-    exit $EXIT_FAILURE
+    $SED -n '/^# Usage:/,/^#  *.*--help/ {
+        s/^# //
+	s/^# *$//
+	s/\$progname/'$progname'/
+	p
+    }' < "$progpath"
+    echo
+    $ECHO "run \`$progname --help | more' for full usage"
+    exit $?
 }
 
-
-# func_help
-# ---------
-# Echo long help message to standard output and exit.
+# func_help [NOEXIT]
+# Echo long help message to standard output and exit,
+# unless 'noexit' is passed as argument.
 func_help ()
 {
-    $debug_cmd
-
-    func_usage_message
-    $ECHO "$long_help_message"
-    exit 0
+    $opt_debug
+
+    $SED -n '/^# Usage:/,/# Report bugs to/ {
+	:print
+        s/^# //
+	s/^# *$//
+	s*\$progname*'$progname'*
+	s*\$host*'"$host"'*
+	s*\$SHELL*'"$SHELL"'*
+	s*\$LTCC*'"$LTCC"'*
+	s*\$LTCFLAGS*'"$LTCFLAGS"'*
+	s*\$LD*'"$LD"'*
+	s/\$with_gnu_ld/'"$with_gnu_ld"'/
+	s/\$automake_version/'"`(${AUTOMAKE-automake} --version) 2>/dev/null |$SED 1q`"'/
+	s/\$autoconf_version/'"`(${AUTOCONF-autoconf} --version) 2>/dev/null |$SED 1q`"'/
+	p
+	d
+     }
+     /^# .* home page:/b print
+     /^# General help using/b print
+     ' < "$progpath"
+    ret=$?
+    if test -z "$1"; then
+      exit $ret
+    fi
 }
 
-
-# func_missing_arg ARGNAME
-# ------------------------
+# func_missing_arg argname
 # Echo program name prefixed message to standard error and set global
 # exit_cmd.
 func_missing_arg ()
 {
-    $debug_cmd
+    $opt_debug
 
-    func_error "Missing argument for '$1'."
+    func_error "missing argument for $1."
     exit_cmd=exit
 }
 
 
-# func_split_equals STRING
-# ------------------------
-# Set func_split_equals_lhs and func_split_equals_rhs shell variables after
-# splitting STRING at the '=' sign.
-test -z "$_G_HAVE_XSI_OPS" \
-    && (eval 'x=a/b/c;
-      test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
-    && _G_HAVE_XSI_OPS=yes
-
-if test yes = "$_G_HAVE_XSI_OPS"
-then
-  # This is an XSI compatible shell, allowing a faster implementation...
-  eval 'func_split_equals ()
-  {
-      $debug_cmd
-
-      func_split_equals_lhs=${1%%=*}
-      func_split_equals_rhs=${1#*=}
-      test "x$func_split_equals_lhs" = "x$1" \
-        && func_split_equals_rhs=
-  }'
-else
-  # ...otherwise fall back to using expr, which is often a shell builtin.
-  func_split_equals ()
-  {
-      $debug_cmd
-
-      func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'`
-      func_split_equals_rhs=
-      test "x$func_split_equals_lhs" = "x$1" \
-        || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'`
-  }
-fi #func_split_equals
-
-
-# func_split_short_opt SHORTOPT
-# -----------------------------
+# func_split_short_opt shortopt
 # Set func_split_short_opt_name and func_split_short_opt_arg shell
 # variables after splitting SHORTOPT after the 2nd character.
-if test yes = "$_G_HAVE_XSI_OPS"
-then
-  # This is an XSI compatible shell, allowing a faster implementation...
-  eval 'func_split_short_opt ()
-  {
-      $debug_cmd
-
-      func_split_short_opt_arg=${1#??}
-      func_split_short_opt_name=${1%"$func_split_short_opt_arg"}
-  }'
-else
-  # ...otherwise fall back to using expr, which is often a shell builtin.
-  func_split_short_opt ()
-  {
-      $debug_cmd
-
-      func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'`
-      func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'`
-  }
-fi #func_split_short_opt
-
-
-# func_usage
-# ----------
-# Echo short help message to standard output and exit.
-func_usage ()
+func_split_short_opt ()
 {
-    $debug_cmd
+    my_sed_short_opt='1s/^\(..\).*$/\1/;q'
+    my_sed_short_rest='1s/^..\(.*\)$/\1/;q'
 
-    func_usage_message
-    $ECHO "Run '$progname --help |${PAGER-more}' for full usage"
-    exit 0
-}
+    func_split_short_opt_name=`$ECHO "$1" | $SED "$my_sed_short_opt"`
+    func_split_short_opt_arg=`$ECHO "$1" | $SED "$my_sed_short_rest"`
+} # func_split_short_opt may be replaced by extended shell implementation
 
 
-# func_usage_message
-# ------------------
-# Echo short help message to standard output.
-func_usage_message ()
+# func_split_long_opt longopt
+# Set func_split_long_opt_name and func_split_long_opt_arg shell
+# variables after splitting LONGOPT at the `=' sign.
+func_split_long_opt ()
 {
-    $debug_cmd
+    my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q'
+    my_sed_long_arg='1s/^--[^=]*=//'
 
-    eval \$ECHO \""Usage: $usage"\"
-    echo
-    $SED -n 's|^# ||
-        /^Written by/{
-          x;p;x
-        }
-	h
-	/^Written by/q' < "$progpath"
-    echo
-    eval \$ECHO \""$usage_message"\"
-}
+    func_split_long_opt_name=`$ECHO "$1" | $SED "$my_sed_long_opt"`
+    func_split_long_opt_arg=`$ECHO "$1" | $SED "$my_sed_long_arg"`
+} # func_split_long_opt may be replaced by extended shell implementation
 
+exit_cmd=:
 
-# func_version
-# ------------
-# Echo version message to standard output and exit.
-func_version ()
-{
-    $debug_cmd
 
-    printf '%s\n' "$progname $scriptversion"
-    $SED -n '
-        /(C)/!b go
-        :more
-        /\./!{
-          N
-          s|\n# | |
-          b more
-        }
-        :go
-        /^# Written by /,/# warranty; / {
-          s|^# ||
-          s|^# *$||
-          s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2|
-          p
-        }
-        /^# Written by / {
-          s|^# ||
-          p
-        }
-        /^warranty; /q' < "$progpath"
 
-    exit $?
-}
 
 
-# Local variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'before-save-hook 'time-stamp)
-# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
-# time-stamp-time-zone: "UTC"
-# End:
+magic="%%%MAGIC variable%%%"
+magic_exe="%%%MAGIC EXE variable%%%"
 
-# Set a version string.
-scriptversion='(GNU libtool) 2.4.6'
+# Global variables.
+nonopt=
+preserve_args=
+lo2o="s/\\.lo\$/.${objext}/"
+o2lo="s/\\.${objext}\$/.lo/"
+extracted_archives=
+extracted_serial=0
 
+# If this variable is set in any of the actions, the command in it
+# will be execed at the end.  This prevents here-documents from being
+# left over by shells.
+exec_cmd=
 
-# func_echo ARG...
-# ----------------
-# Libtool also displays the current mode in messages, so override
-# funclib.sh func_echo with this custom definition.
-func_echo ()
+# func_append var value
+# Append VALUE to the end of shell variable VAR.
+func_append ()
 {
-    $debug_cmd
+    eval "${1}=\$${1}\${2}"
+} # func_append may be replaced by extended shell implementation
 
-    _G_message=$*
-
-    func_echo_IFS=$IFS
-    IFS=$nl
-    for _G_line in $_G_message; do
-      IFS=$func_echo_IFS
-      $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line"
-    done
-    IFS=$func_echo_IFS
-}
-
-
-# func_warning ARG...
-# -------------------
-# Libtool warnings are not categorized, so override funclib.sh
-# func_warning with this simpler definition.
-func_warning ()
+# func_append_quoted var value
+# Quote VALUE and append to the end of shell variable VAR, separated
+# by a space.
+func_append_quoted ()
 {
-    $debug_cmd
+    func_quote_for_eval "${2}"
+    eval "${1}=\$${1}\\ \$func_quote_for_eval_result"
+} # func_append_quoted may be replaced by extended shell implementation
 
-    $warning_func ${1+"$@"}
-}
-
-
-## ---------------- ##
-## Options parsing. ##
-## ---------------- ##
-
-# Hook in the functions to make sure our own options are parsed during
-# the option parsing loop.
-
-usage='$progpath [OPTION]... [MODE-ARG]...'
-
-# Short help message in response to '-h'.
-usage_message="Options:
-       --config             show all configuration variables
-       --debug              enable verbose shell tracing
-   -n, --dry-run            display commands without modifying any files
-       --features           display basic configuration information and exit
-       --mode=MODE          use operation mode MODE
-       --no-warnings        equivalent to '-Wnone'
-       --preserve-dup-deps  don't remove duplicate dependency libraries
-       --quiet, --silent    don't print informational messages
-       --tag=TAG            use configuration variables from tag TAG
-   -v, --verbose            print more informational messages than default
-       --version            print version information
-   -W, --warnings=CATEGORY  report the warnings falling in CATEGORY [all]
-   -h, --help, --help-all   print short, long, or detailed help message
-"
 
-# Additional text appended to 'usage_message' in response to '--help'.
-func_help ()
+# func_arith arithmetic-term...
+func_arith ()
 {
-    $debug_cmd
-
-    func_usage_message
-    $ECHO "$long_help_message
-
-MODE must be one of the following:
-
-       clean           remove files from the build directory
-       compile         compile a source file into a libtool object
-       execute         automatically set library path, then run a program
-       finish          complete the installation of libtool libraries
-       install         install libraries or executables
-       link            create a library or an executable
-       uninstall       remove libraries from an installed directory
-
-MODE-ARGS vary depending on the MODE.  When passed as first option,
-'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that.
-Try '$progname --help --mode=MODE' for a more detailed description of MODE.
-
-When reporting a bug, please describe a test case to reproduce it and
-include the following information:
-
-       host-triplet:   $host
-       shell:          $SHELL
-       compiler:       $LTCC
-       compiler flags: $LTCFLAGS
-       linker:         $LD (gnu? $with_gnu_ld)
-       version:        $progname (GNU libtool) 2.4.6
-       automake:       `($AUTOMAKE --version) 2>/dev/null |$SED 1q`
-       autoconf:       `($AUTOCONF --version) 2>/dev/null |$SED 1q`
-
-Report bugs to <[e-mail]>.
-GNU libtool home page: <http://www.gnu.org/software/libtool/>.
-General help using GNU software: <http://www.gnu.org/gethelp/>."
-    exit 0
-}
+    func_arith_result=`expr "${@}"`
+} # func_arith may be replaced by extended shell implementation
 
 
-# func_lo2o OBJECT-NAME
-# ---------------------
-# Transform OBJECT-NAME from a '.lo' suffix to the platform specific
-# object suffix.
+# func_len string
+# STRING may not start with a hyphen.
+func_len ()
+{
+    func_len_result=`expr "${1}" : ".*" 2>/dev/null || echo $max_cmd_len`
+} # func_len may be replaced by extended shell implementation
 
-lo2o=s/\\.lo\$/.$objext/
-o2lo=s/\\.$objext\$/.lo/
 
-if test yes = "$_G_HAVE_XSI_OPS"; then
-  eval 'func_lo2o ()
-  {
-    case $1 in
-      *.lo) func_lo2o_result=${1%.lo}.$objext ;;
-      *   ) func_lo2o_result=$1               ;;
-    esac
-  }'
+# func_lo2o object
+func_lo2o ()
+{
+    func_lo2o_result=`$ECHO "${1}" | $SED "$lo2o"`
+} # func_lo2o may be replaced by extended shell implementation
 
-  # func_xform LIBOBJ-OR-SOURCE
-  # ---------------------------
-  # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise)
-  # suffix to a '.lo' libtool-object suffix.
-  eval 'func_xform ()
-  {
-    func_xform_result=${1%.*}.lo
-  }'
-else
-  # ...otherwise fall back to using sed.
-  func_lo2o ()
-  {
-    func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"`
-  }
 
-  func_xform ()
-  {
-    func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'`
-  }
-fi
+# func_xform libobj-or-source
+func_xform ()
+{
+    func_xform_result=`$ECHO "${1}" | $SED 's/\.[^.]*$/.lo/'`
+} # func_xform may be replaced by extended shell implementation
 
 
-# func_fatal_configuration ARG...
-# -------------------------------
+# func_fatal_configuration arg...
 # Echo program name prefixed message to standard error, followed by
 # a configuration failure hint, and exit.
 func_fatal_configuration ()
 {
-    func__fatal_error ${1+"$@"} \
-      "See the $PACKAGE documentation for more information." \
-      "Fatal configuration error."
+    func_error ${1+"$@"}
+    func_error "See the $PACKAGE documentation for more information."
+    func_fatal_error "Fatal configuration error."
 }
 
 
 # func_config
-# -----------
 # Display the configuration for all the tags in this script.
 func_config ()
 {
@@ -2149,19 +915,17 @@ func_config ()
     exit $?
 }
 
-
 # func_features
-# -------------
 # Display the features supported by this script.
 func_features ()
 {
     echo "host: $host"
-    if test yes = "$build_libtool_libs"; then
+    if test "$build_libtool_libs" = yes; then
       echo "enable shared libraries"
     else
       echo "disable shared libraries"
     fi
-    if test yes = "$build_old_libs"; then
+    if test "$build_old_libs" = yes; then
       echo "enable static libraries"
     else
       echo "disable static libraries"
@@ -2170,297 +934,289 @@ func_features ()
     exit $?
 }
 
-
-# func_enable_tag TAGNAME
-# -----------------------
+# func_enable_tag tagname
 # Verify that TAGNAME is valid, and either flag an error and exit, or
 # enable the TAGNAME tag.  We also add TAGNAME to the global $taglist
 # variable here.
 func_enable_tag ()
 {
-    # Global variable:
-    tagname=$1
+  # Global variable:
+  tagname="$1"
 
-    re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
-    re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
-    sed_extractcf=/$re_begincf/,/$re_endcf/p
+  re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
+  re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
+  sed_extractcf="/$re_begincf/,/$re_endcf/p"
 
-    # Validate tagname.
-    case $tagname in
-      *[!-_A-Za-z0-9,/]*)
-        func_fatal_error "invalid tag name: $tagname"
-        ;;
-    esac
+  # Validate tagname.
+  case $tagname in
+    *[!-_A-Za-z0-9,/]*)
+      func_fatal_error "invalid tag name: $tagname"
+      ;;
+  esac
 
-    # Don't test for the "default" C tag, as we know it's
-    # there but not specially marked.
-    case $tagname in
-        CC) ;;
+  # Don't test for the "default" C tag, as we know it's
+  # there but not specially marked.
+  case $tagname in
+    CC) ;;
     *)
-        if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
-	  taglist="$taglist $tagname"
-
-	  # Evaluate the configuration.  Be careful to quote the path
-	  # and the sed script, to avoid splitting on whitespace, but
-	  # also don't use non-portable quotes within backquotes within
-	  # quotes we have to do it in 2 steps:
-	  extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
-	  eval "$extractedcf"
-        else
-	  func_error "ignoring unknown tag $tagname"
-        fi
-        ;;
-    esac
+      if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
+	taglist="$taglist $tagname"
+
+	# Evaluate the configuration.  Be careful to quote the path
+	# and the sed script, to avoid splitting on whitespace, but
+	# also don't use non-portable quotes within backquotes within
+	# quotes we have to do it in 2 steps:
+	extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
+	eval "$extractedcf"
+      else
+	func_error "ignoring unknown tag $tagname"
+      fi
+      ;;
+  esac
 }
 
-
 # func_check_version_match
-# ------------------------
 # Ensure that we are using m4 macros, and libtool script from the same
 # release of libtool.
 func_check_version_match ()
 {
-    if test "$package_revision" != "$macro_revision"; then
-      if test "$VERSION" != "$macro_version"; then
-        if test -z "$macro_version"; then
-          cat >&2 <<_LT_EOF
+  if test "$package_revision" != "$macro_revision"; then
+    if test "$VERSION" != "$macro_version"; then
+      if test -z "$macro_version"; then
+        cat >&2 <<_LT_EOF
 $progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
 $progname: definition of this LT_INIT comes from an older release.
 $progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
 $progname: and run autoconf again.
 _LT_EOF
-        else
-          cat >&2 <<_LT_EOF
+      else
+        cat >&2 <<_LT_EOF
 $progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
 $progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
 $progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
 $progname: and run autoconf again.
 _LT_EOF
-        fi
-      else
-        cat >&2 <<_LT_EOF
+      fi
+    else
+      cat >&2 <<_LT_EOF
 $progname: Version mismatch error.  This is $PACKAGE $VERSION, revision $package_revision,
 $progname: but the definition of this LT_INIT comes from revision $macro_revision.
 $progname: You should recreate aclocal.m4 with macros from revision $package_revision
 $progname: of $PACKAGE $VERSION and run autoconf again.
 _LT_EOF
-      fi
-
-      exit $EXIT_MISMATCH
     fi
-}
 
+    exit $EXIT_MISMATCH
+  fi
+}
 
-# libtool_options_prep [ARG]...
-# -----------------------------
-# Preparation for options parsed by libtool.
-libtool_options_prep ()
-{
-    $debug_mode
 
-    # Option defaults:
-    opt_config=false
-    opt_dlopen=
-    opt_dry_run=false
-    opt_help=false
-    opt_mode=
-    opt_preserve_dup_deps=false
-    opt_quiet=false
+# Shorthand for --mode=foo, only valid as the first argument
+case $1 in
+clean|clea|cle|cl)
+  shift; set dummy --mode clean ${1+"$@"}; shift
+  ;;
+compile|compil|compi|comp|com|co|c)
+  shift; set dummy --mode compile ${1+"$@"}; shift
+  ;;
+execute|execut|execu|exec|exe|ex|e)
+  shift; set dummy --mode execute ${1+"$@"}; shift
+  ;;
+finish|finis|fini|fin|fi|f)
+  shift; set dummy --mode finish ${1+"$@"}; shift
+  ;;
+install|instal|insta|inst|ins|in|i)
+  shift; set dummy --mode install ${1+"$@"}; shift
+  ;;
+link|lin|li|l)
+  shift; set dummy --mode link ${1+"$@"}; shift
+  ;;
+uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
+  shift; set dummy --mode uninstall ${1+"$@"}; shift
+  ;;
+esac
 
-    nonopt=
-    preserve_args=
 
-    # Shorthand for --mode=foo, only valid as the first argument
-    case $1 in
-    clean|clea|cle|cl)
-      shift; set dummy --mode clean ${1+"$@"}; shift
-      ;;
-    compile|compil|compi|comp|com|co|c)
-      shift; set dummy --mode compile ${1+"$@"}; shift
-      ;;
-    execute|execut|execu|exec|exe|ex|e)
-      shift; set dummy --mode execute ${1+"$@"}; shift
-      ;;
-    finish|finis|fini|fin|fi|f)
-      shift; set dummy --mode finish ${1+"$@"}; shift
-      ;;
-    install|instal|insta|inst|ins|in|i)
-      shift; set dummy --mode install ${1+"$@"}; shift
-      ;;
-    link|lin|li|l)
-      shift; set dummy --mode link ${1+"$@"}; shift
-      ;;
-    uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
-      shift; set dummy --mode uninstall ${1+"$@"}; shift
-      ;;
-    esac
 
-    # Pass back the list of options.
-    func_quote_for_eval ${1+"$@"}
-    libtool_options_prep_result=$func_quote_for_eval_result
-}
-func_add_hook func_options_prep libtool_options_prep
+# Option defaults:
+opt_debug=:
+opt_dry_run=false
+opt_config=false
+opt_preserve_dup_deps=false
+opt_features=false
+opt_finish=false
+opt_help=false
+opt_help_all=false
+opt_silent=:
+opt_warning=:
+opt_verbose=:
+opt_silent=false
+opt_verbose=false
 
 
-# libtool_parse_options [ARG]...
-# ---------------------------------
-# Provide handling for libtool specific options.
-libtool_parse_options ()
+# Parse options once, thoroughly.  This comes as soon as possible in the
+# script to make things like `--version' happen as quickly as we can.
 {
-    $debug_cmd
+  # this just eases exit handling
+  while test $# -gt 0; do
+    opt="$1"
+    shift
+    case $opt in
+      --debug|-x)	opt_debug='set -x'
+			func_echo "enabling shell trace mode"
+			$opt_debug
+			;;
+      --dry-run|--dryrun|-n)
+			opt_dry_run=:
+			;;
+      --config)
+			opt_config=:
+func_config
+			;;
+      --dlopen|-dlopen)
+			optarg="$1"
+			opt_dlopen="${opt_dlopen+$opt_dlopen
+}$optarg"
+			shift
+			;;
+      --preserve-dup-deps)
+			opt_preserve_dup_deps=:
+			;;
+      --features)
+			opt_features=:
+func_features
+			;;
+      --finish)
+			opt_finish=:
+set dummy --mode finish ${1+"$@"}; shift
+			;;
+      --help)
+			opt_help=:
+			;;
+      --help-all)
+			opt_help_all=:
+opt_help=': help-all'
+			;;
+      --mode)
+			test $# = 0 && func_missing_arg $opt && break
+			optarg="$1"
+			opt_mode="$optarg"
+case $optarg in
+  # Valid mode arguments:
+  clean|compile|execute|finish|install|link|relink|uninstall) ;;
+
+  # Catch anything else as an error
+  *) func_error "invalid argument for $opt"
+     exit_cmd=exit
+     break
+     ;;
+esac
+			shift
+			;;
+      --no-silent|--no-quiet)
+			opt_silent=false
+func_append preserve_args " $opt"
+			;;
+      --no-warning|--no-warn)
+			opt_warning=false
+func_append preserve_args " $opt"
+			;;
+      --no-verbose)
+			opt_verbose=false
+func_append preserve_args " $opt"
+			;;
+      --silent|--quiet)
+			opt_silent=:
+func_append preserve_args " $opt"
+        opt_verbose=false
+			;;
+      --verbose|-v)
+			opt_verbose=:
+func_append preserve_args " $opt"
+opt_silent=false
+			;;
+      --tag)
+			test $# = 0 && func_missing_arg $opt && break
+			optarg="$1"
+			opt_tag="$optarg"
+func_append preserve_args " $opt $optarg"
+func_enable_tag "$optarg"
+			shift
+			;;
+
+      -\?|-h)		func_usage				;;
+      --help)		func_help				;;
+      --version)	func_version				;;
+
+      # Separate optargs to long options:
+      --*=*)
+			func_split_long_opt "$opt"
+			set dummy "$func_split_long_opt_name" "$func_split_long_opt_arg" ${1+"$@"}
+			shift
+			;;
+
+      # Separate non-argument short options:
+      -\?*|-h*|-n*|-v*)
+			func_split_short_opt "$opt"
+			set dummy "$func_split_short_opt_name" "-$func_split_short_opt_arg" ${1+"$@"}
+			shift
+			;;
+
+      --)		break					;;
+      -*)		func_fatal_help "unrecognized option \`$opt'" ;;
+      *)		set dummy "$opt" ${1+"$@"};	shift; break  ;;
+    esac
+  done
 
-    # Perform our own loop to consume as many options as possible in
-    # each iteration.
-    while test $# -gt 0; do
-      _G_opt=$1
-      shift
-      case $_G_opt in
-        --dry-run|--dryrun|-n)
-                        opt_dry_run=:
-                        ;;
-
-        --config)       func_config ;;
-
-        --dlopen|-dlopen)
-                        opt_dlopen="${opt_dlopen+$opt_dlopen
-}$1"
-                        shift
-                        ;;
-
-        --preserve-dup-deps)
-                        opt_preserve_dup_deps=: ;;
-
-        --features)     func_features ;;
-
-        --finish)       set dummy --mode finish ${1+"$@"}; shift ;;
-
-        --help)         opt_help=: ;;
-
-        --help-all)     opt_help=': help-all' ;;
-
-        --mode)         test $# = 0 && func_missing_arg $_G_opt && break
-                        opt_mode=$1
-                        case $1 in
-                          # Valid mode arguments:
-                          clean|compile|execute|finish|install|link|relink|uninstall) ;;
-
-                          # Catch anything else as an error
-                          *) func_error "invalid argument for $_G_opt"
-                             exit_cmd=exit
-                             break
-                             ;;
-                        esac
-                        shift
-                        ;;
-
-        --no-silent|--no-quiet)
-                        opt_quiet=false
-                        func_append preserve_args " $_G_opt"
-                        ;;
-
-        --no-warnings|--no-warning|--no-warn)
-                        opt_warning=false
-                        func_append preserve_args " $_G_opt"
-                        ;;
-
-        --no-verbose)
-                        opt_verbose=false
-                        func_append preserve_args " $_G_opt"
-                        ;;
-
-        --silent|--quiet)
-                        opt_quiet=:
-                        opt_verbose=false
-                        func_append preserve_args " $_G_opt"
-                        ;;
-
-        --tag)          test $# = 0 && func_missing_arg $_G_opt && break
-                        opt_tag=$1
-                        func_append preserve_args " $_G_opt $1"
-                        func_enable_tag "$1"
-                        shift
-                        ;;
-
-        --verbose|-v)   opt_quiet=false
-                        opt_verbose=:
-                        func_append preserve_args " $_G_opt"
-                        ;;
-
-	# An option not handled by this hook function:
-        *)		set dummy "$_G_opt" ${1+"$@"};	shift; break  ;;
-      esac
-    done
+  # Validate options:
 
+  # save first non-option argument
+  if test "$#" -gt 0; then
+    nonopt="$opt"
+    shift
+  fi
 
-    # save modified positional parameters for caller
-    func_quote_for_eval ${1+"$@"}
-    libtool_parse_options_result=$func_quote_for_eval_result
-}
-func_add_hook func_parse_options libtool_parse_options
+  # preserve --debug
+  test "$opt_debug" = : || func_append preserve_args " --debug"
 
+  case $host in
+    *cygwin* | *mingw* | *pw32* | *cegcc*)
+      # don't eliminate duplications in $postdeps and $predeps
+      opt_duplicate_compiler_generated_deps=:
+      ;;
+    *)
+      opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
+      ;;
+  esac
 
+  $opt_help || {
+    # Sanity checks first:
+    func_check_version_match
 
-# libtool_validate_options [ARG]...
-# ---------------------------------
-# Perform any sanity checks on option settings and/or unconsumed
-# arguments.
-libtool_validate_options ()
-{
-    # save first non-option argument
-    if test 0 -lt $#; then
-      nonopt=$1
-      shift
+    if test "$build_libtool_libs" != yes && test "$build_old_libs" != yes; then
+      func_fatal_configuration "not configured to build any kind of library"
     fi
 
-    # preserve --debug
-    test : = "$debug_cmd" || func_append preserve_args " --debug"
-
-    case $host in
-      # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452
-      # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788
-      *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*)
-        # don't eliminate duplications in $postdeps and $predeps
-        opt_duplicate_compiler_generated_deps=:
-        ;;
-      *)
-        opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
-        ;;
-    esac
-
-    $opt_help || {
-      # Sanity checks first:
-      func_check_version_match
+    # Darwin sucks
+    eval std_shrext=\"$shrext_cmds\"
 
-      test yes != "$build_libtool_libs" \
-        && test yes != "$build_old_libs" \
-        && func_fatal_configuration "not configured to build any kind of library"
-
-      # Darwin sucks
-      eval std_shrext=\"$shrext_cmds\"
+    # Only execute mode is allowed to have -dlopen flags.
+    if test -n "$opt_dlopen" && test "$opt_mode" != execute; then
+      func_error "unrecognized option \`-dlopen'"
+      $ECHO "$help" 1>&2
+      exit $EXIT_FAILURE
+    fi
 
-      # Only execute mode is allowed to have -dlopen flags.
-      if test -n "$opt_dlopen" && test execute != "$opt_mode"; then
-        func_error "unrecognized option '-dlopen'"
-        $ECHO "$help" 1>&2
-        exit $EXIT_FAILURE
-      fi
+    # Change the help message to a mode-specific one.
+    generic_help="$help"
+    help="Try \`$progname --help --mode=$opt_mode' for more information."
+  }
 
-      # Change the help message to a mode-specific one.
-      generic_help=$help
-      help="Try '$progname --help --mode=$opt_mode' for more information."
-    }
 
-    # Pass back the unparsed argument list
-    func_quote_for_eval ${1+"$@"}
-    libtool_validate_options_result=$func_quote_for_eval_result
+  # Bail if the options were screwed
+  $exit_cmd $EXIT_FAILURE
 }
-func_add_hook func_validate_options libtool_validate_options
-
 
-# Process options as early as possible so that --help and --version
-# can return quickly.
-func_options ${1+"$@"}
-eval set dummy "$func_options_result"; shift
 
 
 
@@ -2468,52 +1224,24 @@ eval set dummy "$func_options_result"; shift
 ##    Main.    ##
 ## ----------- ##
 
-magic='%%%MAGIC variable%%%'
-magic_exe='%%%MAGIC EXE variable%%%'
-
-# Global variables.
-extracted_archives=
-extracted_serial=0
-
-# If this variable is set in any of the actions, the command in it
-# will be execed at the end.  This prevents here-documents from being
-# left over by shells.
-exec_cmd=
-
-
-# A function that is used when there is no print builtin or printf.
-func_fallback_echo ()
-{
-  eval 'cat <<_LTECHO_EOF
-$1
-_LTECHO_EOF'
-}
-
-# func_generated_by_libtool
-# True iff stdin has been generated by Libtool. This function is only
-# a basic sanity check; it will hardly flush out determined imposters.
-func_generated_by_libtool_p ()
-{
-  $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
-}
-
 # func_lalib_p file
-# True iff FILE is a libtool '.la' library or '.lo' object file.
+# True iff FILE is a libtool `.la' library or `.lo' object file.
 # This function is only a basic sanity check; it will hardly flush out
 # determined imposters.
 func_lalib_p ()
 {
     test -f "$1" &&
-      $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p
+      $SED -e 4q "$1" 2>/dev/null \
+        | $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
 }
 
 # func_lalib_unsafe_p file
-# True iff FILE is a libtool '.la' library or '.lo' object file.
+# True iff FILE is a libtool `.la' library or `.lo' object file.
 # This function implements the same check as func_lalib_p without
 # resorting to external programs.  To this end, it redirects stdin and
 # closes it afterwards, without saving the original file descriptor.
 # As a safety measure, use it only where a negative result would be
-# fatal anyway.  Works if 'file' does not exist.
+# fatal anyway.  Works if `file' does not exist.
 func_lalib_unsafe_p ()
 {
     lalib_p=no
@@ -2521,13 +1249,13 @@ func_lalib_unsafe_p ()
 	for lalib_p_l in 1 2 3 4
 	do
 	    read lalib_p_line
-	    case $lalib_p_line in
+	    case "$lalib_p_line" in
 		\#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
 	    esac
 	done
 	exec 0<&5 5<&-
     fi
-    test yes = "$lalib_p"
+    test "$lalib_p" = yes
 }
 
 # func_ltwrapper_script_p file
@@ -2536,8 +1264,7 @@ func_lalib_unsafe_p ()
 # determined imposters.
 func_ltwrapper_script_p ()
 {
-    test -f "$1" &&
-      $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p
+    func_lalib_p "$1"
 }
 
 # func_ltwrapper_executable_p file
@@ -2562,7 +1289,7 @@ func_ltwrapper_scriptname ()
 {
     func_dirname_and_basename "$1" "" "."
     func_stripname '' '.exe' "$func_basename_result"
-    func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper
+    func_ltwrapper_scriptname_result="$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper"
 }
 
 # func_ltwrapper_p file
@@ -2581,13 +1308,11 @@ func_ltwrapper_p ()
 # FAIL_CMD may read-access the current command in variable CMD!
 func_execute_cmds ()
 {
-    $debug_cmd
-
+    $opt_debug
     save_ifs=$IFS; IFS='~'
     for cmd in $1; do
-      IFS=$sp$nl
-      eval cmd=\"$cmd\"
       IFS=$save_ifs
+      eval cmd=\"$cmd\"
       func_show_eval "$cmd" "${2-:}"
     done
     IFS=$save_ifs
@@ -2599,11 +1324,10 @@ func_execute_cmds ()
 # Note that it is not necessary on cygwin/mingw to append a dot to
 # FILE even if both FILE and FILE.exe exist: automatic-append-.exe
 # behavior happens only for exec(3), not for open(2)!  Also, sourcing
-# 'FILE.' does not work on cygwin managed mounts.
+# `FILE.' does not work on cygwin managed mounts.
 func_source ()
 {
-    $debug_cmd
-
+    $opt_debug
     case $1 in
     */* | *\\*)	. "$1" ;;
     *)		. "./$1" ;;
@@ -2630,10 +1354,10 @@ func_resolve_sysroot ()
 # store the result into func_replace_sysroot_result.
 func_replace_sysroot ()
 {
-  case $lt_sysroot:$1 in
+  case "$lt_sysroot:$1" in
   ?*:"$lt_sysroot"*)
     func_stripname "$lt_sysroot" '' "$1"
-    func_replace_sysroot_result='='$func_stripname_result
+    func_replace_sysroot_result="=$func_stripname_result"
     ;;
   *)
     # Including no sysroot.
@@ -2650,8 +1374,7 @@ func_replace_sysroot ()
 # arg is usually of the form 'gcc ...'
 func_infer_tag ()
 {
-    $debug_cmd
-
+    $opt_debug
     if test -n "$available_tags" && test -z "$tagname"; then
       CC_quoted=
       for arg in $CC; do
@@ -2670,7 +1393,7 @@ func_infer_tag ()
 	for z in $available_tags; do
 	  if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
 	    # Evaluate the configuration.
-	    eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
+	    eval "`${SED} -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
 	    CC_quoted=
 	    for arg in $CC; do
 	      # Double-quote args containing other shell metacharacters.
@@ -2695,7 +1418,7 @@ func_infer_tag ()
 	# line option must be used.
 	if test -z "$tagname"; then
 	  func_echo "unable to infer tagged configuration"
-	  func_fatal_error "specify a tag with '--tag'"
+	  func_fatal_error "specify a tag with \`--tag'"
 #	else
 #	  func_verbose "using $tagname tagged configuration"
 	fi
@@ -2711,15 +1434,15 @@ func_infer_tag ()
 # but don't create it if we're doing a dry run.
 func_write_libtool_object ()
 {
-    write_libobj=$1
-    if test yes = "$build_libtool_libs"; then
-      write_lobj=\'$2\'
+    write_libobj=${1}
+    if test "$build_libtool_libs" = yes; then
+      write_lobj=\'${2}\'
     else
       write_lobj=none
     fi
 
-    if test yes = "$build_old_libs"; then
-      write_oldobj=\'$3\'
+    if test "$build_old_libs" = yes; then
+      write_oldobj=\'${3}\'
     else
       write_oldobj=none
     fi
@@ -2727,7 +1450,7 @@ func_write_libtool_object ()
     $opt_dry_run || {
       cat >${write_libobj}T <<EOF
 # $write_libobj - a libtool object file
-# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+# Generated by $PROGRAM (GNU $PACKAGE$TIMESTAMP) $VERSION
 #
 # Please DO NOT delete this file!
 # It is necessary for linking the library.
@@ -2739,7 +1462,7 @@ pic_object=$write_lobj
 non_pic_object=$write_oldobj
 
 EOF
-      $MV "${write_libobj}T" "$write_libobj"
+      $MV "${write_libobj}T" "${write_libobj}"
     }
 }
 
@@ -2759,9 +1482,8 @@ EOF
 # be empty on error (or when ARG is empty)
 func_convert_core_file_wine_to_w32 ()
 {
-  $debug_cmd
-
-  func_convert_core_file_wine_to_w32_result=$1
+  $opt_debug
+  func_convert_core_file_wine_to_w32_result="$1"
   if test -n "$1"; then
     # Unfortunately, winepath does not exit with a non-zero error code, so we
     # are forced to check the contents of stdout. On the other hand, if the
@@ -2769,9 +1491,9 @@ func_convert_core_file_wine_to_w32 ()
     # *an error message* to stdout. So we must check for both error code of
     # zero AND non-empty stdout, which explains the odd construction:
     func_convert_core_file_wine_to_w32_tmp=`winepath -w "$1" 2>/dev/null`
-    if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then
+    if test "$?" -eq 0 && test -n "${func_convert_core_file_wine_to_w32_tmp}"; then
       func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
-        $SED -e "$sed_naive_backslashify"`
+        $SED -e "$lt_sed_naive_backslashify"`
     else
       func_convert_core_file_wine_to_w32_result=
     fi
@@ -2792,19 +1514,18 @@ func_convert_core_file_wine_to_w32 ()
 # are convertible, then the result may be empty.
 func_convert_core_path_wine_to_w32 ()
 {
-  $debug_cmd
-
+  $opt_debug
   # unfortunately, winepath doesn't convert paths, only file names
-  func_convert_core_path_wine_to_w32_result=
+  func_convert_core_path_wine_to_w32_result=""
   if test -n "$1"; then
     oldIFS=$IFS
     IFS=:
     for func_convert_core_path_wine_to_w32_f in $1; do
       IFS=$oldIFS
       func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
-      if test -n "$func_convert_core_file_wine_to_w32_result"; then
+      if test -n "$func_convert_core_file_wine_to_w32_result" ; then
         if test -z "$func_convert_core_path_wine_to_w32_result"; then
-          func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result
+          func_convert_core_path_wine_to_w32_result="$func_convert_core_file_wine_to_w32_result"
         else
           func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
         fi
@@ -2833,8 +1554,7 @@ func_convert_core_path_wine_to_w32 ()
 # environment variable; do not put it in $PATH.
 func_cygpath ()
 {
-  $debug_cmd
-
+  $opt_debug
   if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
     func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
     if test "$?" -ne 0; then
@@ -2843,7 +1563,7 @@ func_cygpath ()
     fi
   else
     func_cygpath_result=
-    func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'"
+    func_error "LT_CYGPATH is empty or specifies non-existent file: \`$LT_CYGPATH'"
   fi
 }
 #end: func_cygpath
@@ -2854,11 +1574,10 @@ func_cygpath ()
 # result in func_convert_core_msys_to_w32_result.
 func_convert_core_msys_to_w32 ()
 {
-  $debug_cmd
-
+  $opt_debug
   # awkward: cmd appends spaces to result
   func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
-    $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"`
+    $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"`
 }
 #end: func_convert_core_msys_to_w32
 
@@ -2869,14 +1588,13 @@ func_convert_core_msys_to_w32 ()
 # func_to_host_file_result to ARG1).
 func_convert_file_check ()
 {
-  $debug_cmd
-
-  if test -z "$2" && test -n "$1"; then
+  $opt_debug
+  if test -z "$2" && test -n "$1" ; then
     func_error "Could not determine host file name corresponding to"
-    func_error "  '$1'"
+    func_error "  \`$1'"
     func_error "Continuing, but uninstalled executables may not work."
     # Fallback:
-    func_to_host_file_result=$1
+    func_to_host_file_result="$1"
   fi
 }
 # end func_convert_file_check
@@ -2888,11 +1606,10 @@ func_convert_file_check ()
 # func_to_host_file_result to a simplistic fallback value (see below).
 func_convert_path_check ()
 {
-  $debug_cmd
-
+  $opt_debug
   if test -z "$4" && test -n "$3"; then
     func_error "Could not determine the host path corresponding to"
-    func_error "  '$3'"
+    func_error "  \`$3'"
     func_error "Continuing, but uninstalled executables may not work."
     # Fallback.  This is a deliberately simplistic "conversion" and
     # should not be "improved".  See libtool.info.
@@ -2901,7 +1618,7 @@ func_convert_path_check ()
       func_to_host_path_result=`echo "$3" |
         $SED -e "$lt_replace_pathsep_chars"`
     else
-      func_to_host_path_result=$3
+      func_to_host_path_result="$3"
     fi
   fi
 }
@@ -2913,10 +1630,9 @@ func_convert_path_check ()
 # and appending REPL if ORIG matches BACKPAT.
 func_convert_path_front_back_pathsep ()
 {
-  $debug_cmd
-
+  $opt_debug
   case $4 in
-  $1 ) func_to_host_path_result=$3$func_to_host_path_result
+  $1 ) func_to_host_path_result="$3$func_to_host_path_result"
     ;;
   esac
   case $4 in
@@ -2930,7 +1646,7 @@ func_convert_path_front_back_pathsep ()
 ##################################################
 # $build to $host FILE NAME CONVERSION FUNCTIONS #
 ##################################################
-# invoked via '$to_host_file_cmd ARG'
+# invoked via `$to_host_file_cmd ARG'
 #
 # In each case, ARG is the path to be converted from $build to $host format.
 # Result will be available in $func_to_host_file_result.
@@ -2941,8 +1657,7 @@ func_convert_path_front_back_pathsep ()
 # in func_to_host_file_result.
 func_to_host_file ()
 {
-  $debug_cmd
-
+  $opt_debug
   $to_host_file_cmd "$1"
 }
 # end func_to_host_file
@@ -2954,8 +1669,7 @@ func_to_host_file ()
 # in (the comma separated) LAZY, no conversion takes place.
 func_to_tool_file ()
 {
-  $debug_cmd
-
+  $opt_debug
   case ,$2, in
     *,"$to_tool_file_cmd",*)
       func_to_tool_file_result=$1
@@ -2973,7 +1687,7 @@ func_to_tool_file ()
 # Copy ARG to func_to_host_file_result.
 func_convert_file_noop ()
 {
-  func_to_host_file_result=$1
+  func_to_host_file_result="$1"
 }
 # end func_convert_file_noop
 
@@ -2984,12 +1698,11 @@ func_convert_file_noop ()
 # func_to_host_file_result.
 func_convert_file_msys_to_w32 ()
 {
-  $debug_cmd
-
-  func_to_host_file_result=$1
+  $opt_debug
+  func_to_host_file_result="$1"
   if test -n "$1"; then
     func_convert_core_msys_to_w32 "$1"
-    func_to_host_file_result=$func_convert_core_msys_to_w32_result
+    func_to_host_file_result="$func_convert_core_msys_to_w32_result"
   fi
   func_convert_file_check "$1" "$func_to_host_file_result"
 }
@@ -3001,9 +1714,8 @@ func_convert_file_msys_to_w32 ()
 # func_to_host_file_result.
 func_convert_file_cygwin_to_w32 ()
 {
-  $debug_cmd
-
-  func_to_host_file_result=$1
+  $opt_debug
+  func_to_host_file_result="$1"
   if test -n "$1"; then
     # because $build is cygwin, we call "the" cygpath in $PATH; no need to use
     # LT_CYGPATH in this case.
@@ -3019,12 +1731,11 @@ func_convert_file_cygwin_to_w32 ()
 # and a working winepath. Returns result in func_to_host_file_result.
 func_convert_file_nix_to_w32 ()
 {
-  $debug_cmd
-
-  func_to_host_file_result=$1
+  $opt_debug
+  func_to_host_file_result="$1"
   if test -n "$1"; then
     func_convert_core_file_wine_to_w32 "$1"
-    func_to_host_file_result=$func_convert_core_file_wine_to_w32_result
+    func_to_host_file_result="$func_convert_core_file_wine_to_w32_result"
   fi
   func_convert_file_check "$1" "$func_to_host_file_result"
 }
@@ -3036,13 +1747,12 @@ func_convert_file_nix_to_w32 ()
 # Returns result in func_to_host_file_result.
 func_convert_file_msys_to_cygwin ()
 {
-  $debug_cmd
-
-  func_to_host_file_result=$1
+  $opt_debug
+  func_to_host_file_result="$1"
   if test -n "$1"; then
     func_convert_core_msys_to_w32 "$1"
     func_cygpath -u "$func_convert_core_msys_to_w32_result"
-    func_to_host_file_result=$func_cygpath_result
+    func_to_host_file_result="$func_cygpath_result"
   fi
   func_convert_file_check "$1" "$func_to_host_file_result"
 }
@@ -3055,14 +1765,13 @@ func_convert_file_msys_to_cygwin ()
 # in func_to_host_file_result.
 func_convert_file_nix_to_cygwin ()
 {
-  $debug_cmd
-
-  func_to_host_file_result=$1
+  $opt_debug
+  func_to_host_file_result="$1"
   if test -n "$1"; then
     # convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
     func_convert_core_file_wine_to_w32 "$1"
     func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
-    func_to_host_file_result=$func_cygpath_result
+    func_to_host_file_result="$func_cygpath_result"
   fi
   func_convert_file_check "$1" "$func_to_host_file_result"
 }
@@ -3072,7 +1781,7 @@ func_convert_file_nix_to_cygwin ()
 #############################################
 # $build to $host PATH CONVERSION FUNCTIONS #
 #############################################
-# invoked via '$to_host_path_cmd ARG'
+# invoked via `$to_host_path_cmd ARG'
 #
 # In each case, ARG is the path to be converted from $build to $host format.
 # The result will be available in $func_to_host_path_result.
@@ -3096,11 +1805,10 @@ func_convert_file_nix_to_cygwin ()
 to_host_path_cmd=
 func_init_to_host_path_cmd ()
 {
-  $debug_cmd
-
+  $opt_debug
   if test -z "$to_host_path_cmd"; then
     func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
-    to_host_path_cmd=func_convert_path_$func_stripname_result
+    to_host_path_cmd="func_convert_path_${func_stripname_result}"
   fi
 }
 
@@ -3110,8 +1818,7 @@ func_init_to_host_path_cmd ()
 # in func_to_host_path_result.
 func_to_host_path ()
 {
-  $debug_cmd
-
+  $opt_debug
   func_init_to_host_path_cmd
   $to_host_path_cmd "$1"
 }
@@ -3122,7 +1829,7 @@ func_to_host_path ()
 # Copy ARG to func_to_host_path_result.
 func_convert_path_noop ()
 {
-  func_to_host_path_result=$1
+  func_to_host_path_result="$1"
 }
 # end func_convert_path_noop
 
@@ -3133,9 +1840,8 @@ func_convert_path_noop ()
 # func_to_host_path_result.
 func_convert_path_msys_to_w32 ()
 {
-  $debug_cmd
-
-  func_to_host_path_result=$1
+  $opt_debug
+  func_to_host_path_result="$1"
   if test -n "$1"; then
     # Remove leading and trailing path separator characters from ARG.  MSYS
     # behavior is inconsistent here; cygpath turns them into '.;' and ';.';
@@ -3143,7 +1849,7 @@ func_convert_path_msys_to_w32 ()
     func_stripname : : "$1"
     func_to_host_path_tmp1=$func_stripname_result
     func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
-    func_to_host_path_result=$func_convert_core_msys_to_w32_result
+    func_to_host_path_result="$func_convert_core_msys_to_w32_result"
     func_convert_path_check : ";" \
       "$func_to_host_path_tmp1" "$func_to_host_path_result"
     func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
@@ -3157,9 +1863,8 @@ func_convert_path_msys_to_w32 ()
 # func_to_host_file_result.
 func_convert_path_cygwin_to_w32 ()
 {
-  $debug_cmd
-
-  func_to_host_path_result=$1
+  $opt_debug
+  func_to_host_path_result="$1"
   if test -n "$1"; then
     # See func_convert_path_msys_to_w32:
     func_stripname : : "$1"
@@ -3178,15 +1883,14 @@ func_convert_path_cygwin_to_w32 ()
 # a working winepath.  Returns result in func_to_host_file_result.
 func_convert_path_nix_to_w32 ()
 {
-  $debug_cmd
-
-  func_to_host_path_result=$1
+  $opt_debug
+  func_to_host_path_result="$1"
   if test -n "$1"; then
     # See func_convert_path_msys_to_w32:
     func_stripname : : "$1"
     func_to_host_path_tmp1=$func_stripname_result
     func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
-    func_to_host_path_result=$func_convert_core_path_wine_to_w32_result
+    func_to_host_path_result="$func_convert_core_path_wine_to_w32_result"
     func_convert_path_check : ";" \
       "$func_to_host_path_tmp1" "$func_to_host_path_result"
     func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
@@ -3200,16 +1904,15 @@ func_convert_path_nix_to_w32 ()
 # Returns result in func_to_host_file_result.
 func_convert_path_msys_to_cygwin ()
 {
-  $debug_cmd
-
-  func_to_host_path_result=$1
+  $opt_debug
+  func_to_host_path_result="$1"
   if test -n "$1"; then
     # See func_convert_path_msys_to_w32:
     func_stripname : : "$1"
     func_to_host_path_tmp1=$func_stripname_result
     func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
     func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
-    func_to_host_path_result=$func_cygpath_result
+    func_to_host_path_result="$func_cygpath_result"
     func_convert_path_check : : \
       "$func_to_host_path_tmp1" "$func_to_host_path_result"
     func_convert_path_front_back_pathsep ":*" "*:" : "$1"
@@ -3224,9 +1927,8 @@ func_convert_path_msys_to_cygwin ()
 # func_to_host_file_result.
 func_convert_path_nix_to_cygwin ()
 {
-  $debug_cmd
-
-  func_to_host_path_result=$1
+  $opt_debug
+  func_to_host_path_result="$1"
   if test -n "$1"; then
     # Remove leading and trailing path separator characters from
     # ARG. msys behavior is inconsistent here, cygpath turns them
@@ -3235,7 +1937,7 @@ func_convert_path_nix_to_cygwin ()
     func_to_host_path_tmp1=$func_stripname_result
     func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
     func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
-    func_to_host_path_result=$func_cygpath_result
+    func_to_host_path_result="$func_cygpath_result"
     func_convert_path_check : : \
       "$func_to_host_path_tmp1" "$func_to_host_path_result"
     func_convert_path_front_back_pathsep ":*" "*:" : "$1"
@@ -3244,31 +1946,13 @@ func_convert_path_nix_to_cygwin ()
 # end func_convert_path_nix_to_cygwin
 
 
-# func_dll_def_p FILE
-# True iff FILE is a Windows DLL '.def' file.
-# Keep in sync with _LT_DLL_DEF_P in libtool.m4
-func_dll_def_p ()
-{
-  $debug_cmd
-
-  func_dll_def_p_tmp=`$SED -n \
-    -e 's/^[	 ]*//' \
-    -e '/^\(;.*\)*$/d' \
-    -e 's/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p' \
-    -e q \
-    "$1"`
-  test DEF = "$func_dll_def_p_tmp"
-}
-
-
 # func_mode_compile arg...
 func_mode_compile ()
 {
-    $debug_cmd
-
+    $opt_debug
     # Get the compilation command and the source file.
     base_compile=
-    srcfile=$nonopt  #  always keep a non-empty value in "srcfile"
+    srcfile="$nonopt"  #  always keep a non-empty value in "srcfile"
     suppress_opt=yes
     suppress_output=
     arg_mode=normal
@@ -3281,12 +1965,12 @@ func_mode_compile ()
       case $arg_mode in
       arg  )
 	# do not "continue".  Instead, add this to base_compile
-	lastarg=$arg
+	lastarg="$arg"
 	arg_mode=normal
 	;;
 
       target )
-	libobj=$arg
+	libobj="$arg"
 	arg_mode=normal
 	continue
 	;;
@@ -3296,7 +1980,7 @@ func_mode_compile ()
 	case $arg in
 	-o)
 	  test -n "$libobj" && \
-	    func_fatal_error "you cannot specify '-o' more than once"
+	    func_fatal_error "you cannot specify \`-o' more than once"
 	  arg_mode=target
 	  continue
 	  ;;
@@ -3325,12 +2009,12 @@ func_mode_compile ()
 	  func_stripname '-Wc,' '' "$arg"
 	  args=$func_stripname_result
 	  lastarg=
-	  save_ifs=$IFS; IFS=,
+	  save_ifs="$IFS"; IFS=','
 	  for arg in $args; do
-	    IFS=$save_ifs
+	    IFS="$save_ifs"
 	    func_append_quoted lastarg "$arg"
 	  done
-	  IFS=$save_ifs
+	  IFS="$save_ifs"
 	  func_stripname ' ' '' "$lastarg"
 	  lastarg=$func_stripname_result
 
@@ -3343,8 +2027,8 @@ func_mode_compile ()
 	  # Accept the current argument as the source file.
 	  # The previous "srcfile" becomes the current argument.
 	  #
-	  lastarg=$srcfile
-	  srcfile=$arg
+	  lastarg="$srcfile"
+	  srcfile="$arg"
 	  ;;
 	esac  #  case $arg
 	;;
@@ -3359,13 +2043,13 @@ func_mode_compile ()
       func_fatal_error "you must specify an argument for -Xcompile"
       ;;
     target)
-      func_fatal_error "you must specify a target with '-o'"
+      func_fatal_error "you must specify a target with \`-o'"
       ;;
     *)
       # Get the name of the library object.
       test -z "$libobj" && {
 	func_basename "$srcfile"
-	libobj=$func_basename_result
+	libobj="$func_basename_result"
       }
       ;;
     esac
@@ -3385,7 +2069,7 @@ func_mode_compile ()
     case $libobj in
     *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
     *)
-      func_fatal_error "cannot determine name of library object from '$libobj'"
+      func_fatal_error "cannot determine name of library object from \`$libobj'"
       ;;
     esac
 
@@ -3394,8 +2078,8 @@ func_mode_compile ()
     for arg in $later; do
       case $arg in
       -shared)
-	test yes = "$build_libtool_libs" \
-	  || func_fatal_configuration "cannot build a shared library"
+	test "$build_libtool_libs" != yes && \
+	  func_fatal_configuration "can not build a shared library"
 	build_old_libs=no
 	continue
 	;;
@@ -3421,17 +2105,17 @@ func_mode_compile ()
     func_quote_for_eval "$libobj"
     test "X$libobj" != "X$func_quote_for_eval_result" \
       && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"'	 &()|`$[]' \
-      && func_warning "libobj name '$libobj' may not contain shell special characters."
+      && func_warning "libobj name \`$libobj' may not contain shell special characters."
     func_dirname_and_basename "$obj" "/" ""
-    objname=$func_basename_result
-    xdir=$func_dirname_result
-    lobj=$xdir$objdir/$objname
+    objname="$func_basename_result"
+    xdir="$func_dirname_result"
+    lobj=${xdir}$objdir/$objname
 
     test -z "$base_compile" && \
       func_fatal_help "you must specify a compilation command"
 
     # Delete any leftover library objects.
-    if test yes = "$build_old_libs"; then
+    if test "$build_old_libs" = yes; then
       removelist="$obj $lobj $libobj ${libobj}T"
     else
       removelist="$lobj $libobj ${libobj}T"
@@ -3443,16 +2127,16 @@ func_mode_compile ()
       pic_mode=default
       ;;
     esac
-    if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then
+    if test "$pic_mode" = no && test "$deplibs_check_method" != pass_all; then
       # non-PIC code in shared libraries is not supported
       pic_mode=default
     fi
 
     # Calculate the filename of the output object if compiler does
     # not support -o with -c
-    if test no = "$compiler_c_o"; then
-      output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext
-      lockfile=$output_obj.lock
+    if test "$compiler_c_o" = no; then
+      output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.${objext}
+      lockfile="$output_obj.lock"
     else
       output_obj=
       need_locks=no
@@ -3461,12 +2145,12 @@ func_mode_compile ()
 
     # Lock this critical section if it is needed
     # We use this script file to make the link, it avoids creating a new file
-    if test yes = "$need_locks"; then
+    if test "$need_locks" = yes; then
       until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
 	func_echo "Waiting for $lockfile to be removed"
 	sleep 2
       done
-    elif test warn = "$need_locks"; then
+    elif test "$need_locks" = warn; then
       if test -f "$lockfile"; then
 	$ECHO "\
 *** ERROR, $lockfile exists and contains:
@@ -3474,7 +2158,7 @@ func_mode_compile ()
 
 This indicates that another process is trying to use the same
 temporary object file, and libtool could not work around it because
-your compiler does not support '-c' and '-o' together.  If you
+your compiler does not support \`-c' and \`-o' together.  If you
 repeat this compilation, it may succeed, by chance, but you had better
 avoid parallel builds (make -j) in this platform, or get a better
 compiler."
@@ -3496,11 +2180,11 @@ compiler."
     qsrcfile=$func_quote_for_eval_result
 
     # Only build a PIC object if we are building libtool libraries.
-    if test yes = "$build_libtool_libs"; then
+    if test "$build_libtool_libs" = yes; then
       # Without this assignment, base_compile gets emptied.
       fbsd_hideous_sh_bug=$base_compile
 
-      if test no != "$pic_mode"; then
+      if test "$pic_mode" != no; then
 	command="$base_compile $qsrcfile $pic_flag"
       else
 	# Don't build PIC code
@@ -3517,7 +2201,7 @@ compiler."
       func_show_eval_locale "$command"	\
           'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
 
-      if test warn = "$need_locks" &&
+      if test "$need_locks" = warn &&
 	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
 	$ECHO "\
 *** ERROR, $lockfile contains:
@@ -3528,7 +2212,7 @@ $srcfile
 
 This indicates that another process is trying to use the same
 temporary object file, and libtool could not work around it because
-your compiler does not support '-c' and '-o' together.  If you
+your compiler does not support \`-c' and \`-o' together.  If you
 repeat this compilation, it may succeed, by chance, but you had better
 avoid parallel builds (make -j) in this platform, or get a better
 compiler."
@@ -3544,20 +2228,20 @@ compiler."
       fi
 
       # Allow error messages only from the first compilation.
-      if test yes = "$suppress_opt"; then
+      if test "$suppress_opt" = yes; then
 	suppress_output=' >/dev/null 2>&1'
       fi
     fi
 
     # Only build a position-dependent object if we build old libraries.
-    if test yes = "$build_old_libs"; then
-      if test yes != "$pic_mode"; then
+    if test "$build_old_libs" = yes; then
+      if test "$pic_mode" != yes; then
 	# Don't build PIC code
 	command="$base_compile $qsrcfile$pie_flag"
       else
 	command="$base_compile $qsrcfile $pic_flag"
       fi
-      if test yes = "$compiler_c_o"; then
+      if test "$compiler_c_o" = yes; then
 	func_append command " -o $obj"
       fi
 
@@ -3566,7 +2250,7 @@ compiler."
       func_show_eval_locale "$command" \
         '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'