Mir

[regression] Mir FTBFS with g++-4.8 [error: ISO C++ forbids casting between pointer-to-function and pointer-to-object]

Bug #1366134 reported by Cemil Azizoglu on 2014-09-05

This bug affects 1 person

	Status	Importance	Assigned to	Milestone
Mir	Fix Released	High	Daniel van Vugt	Mir 0.8.0
0.7	Fix Released	High	Daniel van Vugt	Mir 0.7.2
mir (Ubuntu)	Fix Released	Undecided	Unassigned
mir (Ubuntu RTM)	Fix Released	High	Unassigned

Bug Description

/home/camako/workspace/mir-dev/src/platform/options/default_configuration.cpp: In function ‘void {anonymous}::ensure_loaded_with_rtld_global()’:
/home/camako/workspace/mir-dev/src/platform/options/default_configuration.cpp:77:67: error: ISO C++ forbids casting between pointer-to-function and pointer-to-object [-Werror]
dladdr(reinterpret_cast<void*>(&ensure_loaded_with_rtld_global), &info);

...

/home/camako/workspace/mir-dev/src/client/default_connection_configuration.cpp: In function ‘void {anonymous}::ensure_loaded_with_rtld_global()’:
/home/camako/workspace/mir-dev/src/client/default_connection_configuration.cpp:57:67: error: ISO C++ forbids casting between pointer-to-function and pointer-to-object [-Werror]
dladdr(reinterpret_cast<void*>(&ensure_loaded_with_rtld_global), &info);

Tags:

Related branches

lp:~vanvugt/mir/fix-1366134

Merged into lp:mir at revision 1898

Chris Halse Rogers: Approve on 2014-09-09

Alberto Aguirre (community): Approve on 2014-09-08

PS Jenkins bot (community): Approve (continuous-integration) on 2014-09-08

lp:ubuntu/utopic-proposed/mir

Revision history for this message

Kevin DuBois (kdub) wrote on 2014-09-05:

with rev1893 and a fresh partial chroot, ./cross-compile-chroot.sh seemed to work okay for me.

Daniel van Vugt (vanvugt) on 2014-09-08

Changed in mir:
milestone:	none → 0.8.0
importance:	Undecided → Critical
summary:	- FTBFS: Cross-compile script no longer works + FTBFS: Cross-compile script no longer works [error: ISO C++ forbids + casting between pointer-to-function and pointer-to-object]

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2014-09-08: Re: FTBFS: Cross-compile script no longer works [error: ISO C++ forbids casting between pointer-to-function and pointer-to-object]

I can't reproduce the error either (using a fully updated utopic system). Although it looks like something easy enough to fix regardless.

What platform/compiler are you getting the error from?

Changed in mir:
status:	New → Incomplete

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2014-09-08:

Reproduced. You just have to try building Mir on trusty.

Changed in mir:
importance:	Critical → High
status:	Incomplete → Triaged
summary:	- FTBFS: Cross-compile script no longer works [error: ISO C++ forbids - casting between pointer-to-function and pointer-to-object] + Mir FTBFS on trusty [error: ISO C++ forbids casting between pointer-to- + function and pointer-to-object]
summary:	- Mir FTBFS on trusty [error: ISO C++ forbids casting between pointer-to- - function and pointer-to-object] + [regression] Mir FTBFS on trusty [error: ISO C++ forbids casting between + pointer-to-function and pointer-to-object]
tags:	added: regression

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2014-09-08: Re: [regression] Mir FTBFS on trusty [error: ISO C++ forbids casting between pointer-to-function and pointer-to-object]

Setting to High, not because trusty is important for Mir, but because it's quite realistic to expect other distros (which we want to support) to have a similar compiler with the same problems.

summary:

- [regression] Mir FTBFS on trusty [error: ISO C++ forbids casting between
- pointer-to-function and pointer-to-object]
+ [regression] Mir FTBFS with g++-4.8 [error: ISO C++ forbids casting
+ between pointer-to-function and pointer-to-object]

Daniel van Vugt (vanvugt) on 2014-09-08

Changed in mir:
assignee:	nobody → Daniel van Vugt (vanvugt)

Daniel van Vugt (vanvugt) on 2014-09-08

Changed in mir:
status:	Triaged → In Progress

Daniel van Vugt (vanvugt) on 2014-09-09

Changed in mir:
milestone:	0.8.0 → 0.9.0

Revision history for this message

PS Jenkins bot (ps-jenkins) wrote on 2014-09-09:

Fix committed into lp:mir/devel at revision None, scheduled for release in mir, milestone Unknown

Changed in mir:
status:	In Progress → Fix Committed

Daniel van Vugt (vanvugt) on 2014-09-10

Changed in mir:
milestone:	0.9.0 → 0.8.0

Revision history for this message

Launchpad Janitor (janitor) wrote on 2014-09-12:

This bug was fixed in the package mir - 0.7.2+14.10.20140912-0ubuntu1

---------------
mir (0.7.2+14.10.20140912-0ubuntu1) utopic; urgency=medium

  [ Alexandros Frantzis ]
  * New upstream release 0.7.2 (https://launchpad.net/mir/+milestone/0.7.2)
    - Bug fixes
      . Restore support for gcc-4.8/trusty (LP: #1366134)
-- Ubuntu daily release <email address hidden> Fri, 12 Sep 2014 09:07:49 +0000

Changed in mir (Ubuntu):
status:	New → Fix Released

Daniel van Vugt (vanvugt) on 2014-10-09

Changed in mir:
status:	Fix Committed → Fix Released

Daniel van Vugt (vanvugt) on 2014-10-09

Changed in mir (Ubuntu RTM):
importance:	Undecided → High
status:	New → Fix Released

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