Merge lp:~xapantu/slingshot/cmake into lp:~elementary-pantheon/slingshot/slingshot

[xapantu]

I have just added a proper build system (with cmake), all is explained in README.

mkdir build
cd build
cmake ..
make
./slingshot

And you can also use:
make install
slingshot

[Giulio Collura (gcollura)]

review: Approve

=== added file '.bzrignore'
--- .bzrignore	1970-01-01 00:00:00 +0000
+++ .bzrignore	2011-02-23 11:26:02 +0000
@@ -0,0 +1,1 @@
+build

=== added file 'CMakeLists.txt'
--- CMakeLists.txt	1970-01-01 00:00:00 +0000
+++ CMakeLists.txt	2011-02-23 11:26:02 +0000
@@ -0,0 +1,53 @@
+# The name of our project is "HELLO". CMakeLists files in this project can
+# refer to the root source directory of the project as ${HELLO_SOURCE_DIR} and
+# to the root binary directory of the project as ${HELLO_BINARY_DIR}.
+cmake_minimum_required (VERSION 2.6)
+project (Slingshot)
+
+list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/vala )
+# Recurse into the "Hello" and "Demo" subdirectories. This does not actually
+# cause another cmake executable to run. The same process will walk through
+# the project's entire directory structure.
+
+#add_subdirectory (src)
+
+find_package(PkgConfig)
+pkg_check_modules(DEPS REQUIRED unique-1.0 gtk+-2.0 gee-1.0 gio-unix-2.0 libgnome-menu libwnck-1.0)
+
+add_definitions(${DEPS_CFLAGS})
+
+link_libraries(${DEPS_LIBRARIES})
+
+link_directories(${DEPS_LIBRARY_DIRS})
+
+find_package(Vala REQUIRED)
+include(ValaVersion)
+ensure_vala_version("0.10.0" MINIMUM)
+
+include(ValaPrecompile)
+vala_precompile(VALA_C
+    slingshot.vala
+    frontend/widgets/AppItem.vala
+    frontend/widgets/CompositedWindow.vala
+    frontend/widgets/Grid.vala
+    frontend/widgets/Indicators.vala
+    frontend/widgets/Searchbar.vala
+    frontend/Utilities.vala
+    frontend/Color.vala
+    backend/GMenuEntries.vala
+PACKAGES
+    gtk+-2.0
+    gee-1.0
+    gio-unix-2.0
+    libgnome-menu
+    libwnck-1.0
+    unique-1.0
+OPTIONS
+    --thread
+    )
+
+add_definitions(${CFLAGS} -Wall -Winit-self -Wwrite-strings -Wunreachable-code
+                          -Wstrict-prototypes -DGMENU_I_KNOW_THIS_IS_UNSTABLE -DWNCK_I_KNOW_THIS_IS_UNSTABLE )
+add_executable(slingshot ${VALA_C})
+
+install(TARGETS slingshot RUNTIME DESTINATION bin)

=== added file 'INSTALL'
--- INSTALL	1970-01-01 00:00:00 +0000
+++ INSTALL	2011-02-23 11:26:02 +0000
@@ -0,0 +1,30 @@
+To install Slingshot from the source, you need to compile it.
+
+== Compilation ==
+
+- First, we need a build directory:
+    mkdir build
+    cd build
+- Then, configure CMake:
+    cmake ..
+    Here, you can get some errors if you don't have all the dependencies.
+- Compile it:
+    make
+    You can also use make -j3 if you have a dual core. (it will be much faster)
+
+== Launch Slingshot ==
+
+- Just run slingshot:
+    ./slingshot
+
+== Install Slingshot ==
+
+- With the administrator rights, use:
+    make install
+    Or:
+    sudo make install
+
+- You can now launch Slingshot using:
+    slingshot
+    Or:
+    /usr/local/bin/slingshot

=== added file 'README'
--- README	1970-01-01 00:00:00 +0000
+++ README	2011-02-23 11:26:02 +0000
@@ -0,0 +1,3 @@
+Slingshot is a lightweight app launcher for Elementary, written in Vala and utilizing GTK+ and Cairo.
+
+Under GNU GPL v3

=== removed file 'build_run'
--- build_run	2011-02-12 12:16:02 +0000
+++ build_run	1970-01-01 00:00:00 +0000
@@ -1,7 +0,0 @@
-#!/bin/sh
-
-valac --pkg gtk+-2.0 --pkg unique-1.0 --pkg gee-1.0 --pkg gio-unix-2.0 --pkg libgnome-menu --Xcc='-DGMENU_I_KNOW_THIS_IS_UNSTABLE' --pkg libwnck-1.0 --Xcc='-DWNCK_I_KNOW_THIS_IS_UNSTABLE' slingshot.vala frontend/widgets/*.vala frontend/*.vala backend/*.vala
-
-sudo mv slingshot /usr/bin
-
-slingshot

=== added directory 'cmake'
=== added directory 'cmake/Vala_CMake'
=== added file 'cmake/Vala_CMake/README.rst'
--- cmake/Vala_CMake/README.rst	1970-01-01 00:00:00 +0000
+++ cmake/Vala_CMake/README.rst	2011-02-23 11:26:02 +0000
@@ -0,0 +1,173 @@
+==========
+Vala CMake
+==========
+:Author: 
+    Jakob Westhoff
+:Version:
+    Draft
+
+
+Overview
+========
+
+Vala CMake is a collection of macros for the CMake_ build system to allow the
+creation and management of projects developed using the Vala_ programming
+language or its "Genie" flavor (less tested).
+
+
+Installation
+============
+
+To use the Vala macros in your own project you need to copy the macro files to
+an arbitrary folder in your projects directory and reference them in your
+``CMakeLists.txt`` file.
+
+Assuming the macros are stored under ``cmake/vala`` in your projects folder you
+need to add the following information to your base ``CMakeLists.txt``::
+
+    list(APPEND CMAKE_MODULE_PATH 
+        ${CMAKE_SOURCE_DIR}/cmake/vala
+    )
+
+After the new module path as been added you can simply include the provided
+modules or use the provided find routines.
+
+
+Finding Vala
+============
+
+The find module for vala works like any other Find module in CMake.
+You can use it by simply calling the usual ``find_package`` function. Default
+parameters like ``REQUIRED`` and ``QUIETLY`` are supported.
+
+::
+
+    find_package(Vala REQUIRED)
+
+After a successful call to the find_package function the following variables 
+will be set:
+
+VALA_FOUND
+    Whether the vala compiler has been found or not
+
+VALA_EXECUTABLE
+    Full path to the valac executable if it has been found
+
+VALA_VERSION
+    Version number of the available valac
+
+
+Precompiling Vala sources
+=========================
+
+CMake is mainly supposed to handle c or c++ based projects. Luckily every vala
+program is translated into plain c code using the vala compiler, followed by
+normal compilation of the generated c program using gcc.
+
+The macro ``vala_precompile`` uses that fact to create c files from your .vala
+sources for further CMake processing. 
+
+The first parameter provided is a variable, which will be filled with a list of
+c files outputted by the vala compiler. This list can than be used in
+conjunction with functions like ``add_executable`` or others to create the
+necessary compile rules with CMake.
+
+The initial variable is followed by a list of .vala files to be compiled.
+Please take care to add every vala file belonging to the currently compiled
+project or library as Vala will otherwise not be able to resolve all
+dependencies.
+
+The following sections may be specified afterwards to provide certain options
+to the vala compiler:
+
+PACKAGES  
+    A list of vala packages/libraries to be used during the compile cycle. The
+    package names are exactly the same, as they would be passed to the valac
+    "--pkg=" option.
+
+OPTIONS
+    A list of optional options to be passed to the valac executable. This can be
+    used to pass "--thread" for example to enable multi-threading support.
+
+DIRECTORY
+    Specify the directory where the output source files will be stored. If 
+    ommitted, the source files will be stored in CMAKE_CURRENT_BINARY_DIR.
+
+CUSTOM_VAPIS
+    A list of custom vapi files to be included for compilation. This can be
+    useful to include freshly created vala libraries without having to install
+    them in the system.
+
+GENERATE_VAPI
+    Pass all the needed flags to the compiler to create an internal vapi for
+    the compiled library. The provided name will be used for this and a
+    <provided_name>.vapi file will be created.
+
+GENERATE_HEADER
+    Let the compiler generate a header file for the compiled code. There will
+    be a header file as well as an internal header file being generated called
+    <provided_name>.h and <provided_name>_internal.h
+
+The following call is a simple example to the vala_precompile macro showing an
+example to every of the optional sections::
+
+    vala_precompile(VALA_C
+        source1.vala
+        source2.vala
+        source3.vala
+    PACKAGES
+        gtk+-2.0
+        gio-1.0
+        posix
+    OPTIONS
+        --thread
+    CUSTOM_VAPIS
+        some_vapi.vapi
+    GENERATE_VAPI
+        myvapi
+    GENERATE_HEADER
+        myheader
+    )
+
+Most important is the variable VALA_C which will contain all the generated c
+file names after the call. The easiest way to use this information is to tell
+CMake to create an executable out of it.
+
+::
+
+    add_executable(myexecutable ${VALA_C})
+
+
+Further reading
+===============
+
+The `Pdf Presenter Console`__ , which is a vala based project of mine, makes
+heavy usage of the here described macros.  To look at a real world example of
+these macros the mentioned project is the right place to take a look. The svn
+trunk of it can be found at::
+
+	svn://pureenergy.cc/pdf_presenter_console/trunk
+
+
+__ http://westhoffswelt.de/projects/pdf_presenter_console.html
+
+
+Acknowledgments
+===============
+
+Thanks go out to Florian Sowade, a fellow local PHP-Usergroupie, who helped me
+a lot with the initial version of this macros and always answered my mostly
+dumb CMake questions.
+
+.. _CMake: http://cmake.org
+.. _Vala: http://live.gnome.org/Vala
+.. _Genie: http://live.gnome.org/Genie
+
+
+

+..
+   Local Variables:
+   mode: rst
+   fill-column: 79
+   End: 
+   vim: et syn=rst tw=79

=== added directory 'cmake/vala'
=== added file 'cmake/vala/FindVala.cmake'
--- cmake/vala/FindVala.cmake	1970-01-01 00:00:00 +0000
+++ cmake/vala/FindVala.cmake	2011-02-23 11:26:02 +0000
@@ -0,0 +1,65 @@
+##
+# Copyright 2009-2010 Jakob Westhoff. All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+# 
+#    1. Redistributions of source code must retain the above copyright notice,
+#       this list of conditions and the following disclaimer.
+# 
+#    2. 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.
+# 
+# THIS SOFTWARE IS PROVIDED BY JAKOB WESTHOFF ``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 JAKOB WESTHOFF 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.
+# 
+# The views and conclusions contained in the software and documentation are those
+# of the authors and should not be interpreted as representing official policies,
+# either expressed or implied, of Jakob Westhoff
+##
+
+##
+# Find module for the Vala compiler (valac)
+#
+# This module determines wheter a Vala compiler is installed on the current
+# system and where its executable is.
+#
+# Call the module using "find_package(Vala) from within your CMakeLists.txt.
+#
+# The following variables will be set after an invocation:
+#
+#  VALA_FOUND       Whether the vala compiler has been found or not
+#  VALA_EXECUTABLE  Full path to the valac executable if it has been found
+#  VALA_VERSION     Version number of the available valac
+##
+
+
+# Search for the valac executable in the usual system paths.
+find_program(VALA_EXECUTABLE
+  NAMES valac)
+
+# Handle the QUIETLY and REQUIRED arguments, which may be given to the find call.
+# Furthermore set VALA_FOUND to TRUE if Vala has been found (aka.
+# VALA_EXECUTABLE is set)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Vala DEFAULT_MSG VALA_EXECUTABLE)
+
+mark_as_advanced(VALA_EXECUTABLE)
+
+# Determine the valac version
+if(VALA_FOUND)
+    execute_process(COMMAND ${VALA_EXECUTABLE} "--version" 
+                    OUTPUT_VARIABLE "VALA_VERSION")
+    string(REPLACE "Vala" "" "VALA_VERSION" ${VALA_VERSION})
+    string(STRIP ${VALA_VERSION} "VALA_VERSION")
+endif(VALA_FOUND)

=== added file 'cmake/vala/ParseArguments.cmake'
--- cmake/vala/ParseArguments.cmake	1970-01-01 00:00:00 +0000
+++ cmake/vala/ParseArguments.cmake	2011-02-23 11:26:02 +0000
@@ -0,0 +1,36 @@
+##
+# This is a helper Macro to parse optional arguments in Macros/Functions
+# It has been taken from the public CMake wiki.  
+# See http://www.cmake.org/Wiki/CMakeMacroParseArguments for documentation and
+# licensing.
+##
+macro(parse_arguments prefix arg_names option_names)
+  set(DEFAULT_ARGS)
+  foreach(arg_name ${arg_names})
+    set(${prefix}_${arg_name})
+  endforeach(arg_name)
+  foreach(option ${option_names})
+    set(${prefix}_${option} FALSE)
+  endforeach(option)
+
+  set(current_arg_name DEFAULT_ARGS)
+  set(current_arg_list)
+  foreach(arg ${ARGN})
+    set(larg_names ${arg_names})
+    list(FIND larg_names "${arg}" is_arg_name)
+    if(is_arg_name GREATER -1)
+      set(${prefix}_${current_arg_name} ${current_arg_list})
+      set(current_arg_name ${arg})
+      set(current_arg_list)
+    else(is_arg_name GREATER -1)
+      set(loption_names ${option_names})
+      list(FIND loption_names "${arg}" is_option)
+      if(is_option GREATER -1)
+	    set(${prefix}_${arg} TRUE)
+      else(is_option GREATER -1)
+	    set(current_arg_list ${current_arg_list} ${arg})
+      endif(is_option GREATER -1)
+    endif(is_arg_name GREATER -1)
+  endforeach(arg)
+  set(${prefix}_${current_arg_name} ${current_arg_list})
+endmacro(parse_arguments)

=== added file 'cmake/vala/ValaPrecompile.cmake'
--- cmake/vala/ValaPrecompile.cmake	1970-01-01 00:00:00 +0000
+++ cmake/vala/ValaPrecompile.cmake	2011-02-23 11:26:02 +0000
@@ -0,0 +1,175 @@
+##
+# Copyright 2009-2010 Jakob Westhoff. All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+# 
+#    1. Redistributions of source code must retain the above copyright notice,
+#       this list of conditions and the following disclaimer.
+# 
+#    2. 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.
+# 
+# THIS SOFTWARE IS PROVIDED BY JAKOB WESTHOFF ``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 JAKOB WESTHOFF 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.
+# 
+# The views and conclusions contained in the software and documentation are those
+# of the authors and should not be interpreted as representing official policies,
+# either expressed or implied, of Jakob Westhoff
+##
+
+include(ParseArguments)
+find_package(Vala REQUIRED)
+
+##
+# Compile vala files to their c equivalents for further processing. 
+#
+# The "vala_precompile" macro takes care of calling the valac executable on the
+# given source to produce c files which can then be processed further using
+# default cmake functions.
+# 
+# The first parameter provided is a variable, which will be filled with a list
+# of c files outputted by the vala compiler. This list can than be used in
+# conjuction with functions like "add_executable" or others to create the
+# neccessary compile rules with CMake.
+# 
+# The initial variable is followed by a list of .vala files to be compiled.
+# Please take care to add every vala file belonging to the currently compiled
+# project or library as Vala will otherwise not be able to resolve all
+# dependencies.
+# 
+# The following sections may be specified afterwards to provide certain options
+# to the vala compiler:
+# 
+# PACKAGES
+#   A list of vala packages/libraries to be used during the compile cycle. The
+#   package names are exactly the same, as they would be passed to the valac
+#   "--pkg=" option.
+# 
+# OPTIONS
+#   A list of optional options to be passed to the valac executable. This can be
+#   used to pass "--thread" for example to enable multi-threading support.
+#
+# CUSTOM_VAPIS
+#   A list of custom vapi files to be included for compilation. This can be
+#   useful to include freshly created vala libraries without having to install
+#   them in the system.
+#
+# GENERATE_VAPI
+#   Pass all the needed flags to the compiler to create an internal vapi for
+#   the compiled library. The provided name will be used for this and a
+#   <provided_name>.vapi file will be created.
+# 
+# GENERATE_HEADER
+#   Let the compiler generate a header file for the compiled code. There will
+#   be a header file as well as an internal header file being generated called
+#   <provided_name>.h and <provided_name>_internal.h
+#
+# The following call is a simple example to the vala_precompile macro showing
+# an example to every of the optional sections:
+#
+#   vala_precompile(VALA_C
+#       source1.vala
+#       source2.vala
+#       source3.vala
+#   PACKAGES
+#       gtk+-2.0
+#       gio-1.0
+#       posix
+#   DIRECTORY
+#       gen
+#   OPTIONS
+#       --thread
+#   CUSTOM_VAPIS
+#       some_vapi.vapi
+#   GENERATE_VAPI
+#       myvapi
+#   GENERATE_HEADER
+#       myheader
+#   )
+#
+# Most important is the variable VALA_C which will contain all the generated c
+# file names after the call.
+##
+
+macro(vala_precompile output)
+    parse_arguments(ARGS "PACKAGES;OPTIONS;DIRECTORY;GENERATE_HEADER;GENERATE_VAPI;CUSTOM_VAPIS" "" ${ARGN})
+    if(ARGS_DIRECTORY)
+        set(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${ARGS_DIRECTORY})
+    else(ARGS_DIRECTORY)
+        set(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    endif(ARGS_DIRECTORY)
+    include_directories(${DIRECTORY})
+    set(vala_pkg_opts "")
+    foreach(pkg ${ARGS_PACKAGES})
+        list(APPEND vala_pkg_opts "--pkg=${pkg}")
+    endforeach(pkg ${ARGS_PACKAGES})
+    set(in_files "")
+    set(out_files "")
+    set(${output} "")
+    foreach(src ${ARGS_DEFAULT_ARGS})
+        list(APPEND in_files "${CMAKE_CURRENT_SOURCE_DIR}/${src}")
+        string(REPLACE ".vala" ".c" src ${src})
+        string(REPLACE ".gs" ".c" src ${src})
+        set(out_file "${DIRECTORY}/${src}")
+        list(APPEND out_files "${DIRECTORY}/${src}")
+        list(APPEND ${output} ${out_file})
+    endforeach(src ${ARGS_DEFAULT_ARGS})
+
+    set(custom_vapi_arguments "")
+    if(ARGS_CUSTOM_VAPIS)
+        foreach(vapi ${ARGS_CUSTOM_VAPIS})
+            if(${vapi} MATCHES ${CMAKE_SOURCE_DIR} OR ${vapi} MATCHES ${CMAKE_BINARY_DIR})
+                list(APPEND custom_vapi_arguments ${vapi})
+            else (${vapi} MATCHES ${CMAKE_SOURCE_DIR} OR ${vapi} MATCHES ${CMAKE_BINARY_DIR})
+                list(APPEND custom_vapi_arguments ${CMAKE_CURRENT_SOURCE_DIR}/${vapi})
+            endif(${vapi} MATCHES ${CMAKE_SOURCE_DIR} OR ${vapi} MATCHES ${CMAKE_BINARY_DIR})
+        endforeach(vapi ${ARGS_CUSTOM_VAPIS})
+    endif(ARGS_CUSTOM_VAPIS)
+
+    set(vapi_arguments "")
+    if(ARGS_GENERATE_VAPI)
+        list(APPEND out_files "${DIRECTORY}/${ARGS_GENERATE_VAPI}.vapi")
+        set(vapi_arguments "--internal-vapi=${ARGS_GENERATE_VAPI}.vapi")
+
+        # Header and internal header is needed to generate internal vapi
+        if (NOT ARGS_GENERATE_HEADER)
+            set(ARGS_GENERATE_HEADER ${ARGS_GENERATE_VAPI})
+        endif(NOT ARGS_GENERATE_HEADER)
+    endif(ARGS_GENERATE_VAPI)
+
+    set(header_arguments "")
+    if(ARGS_GENERATE_HEADER)
+        list(APPEND out_files "${DIRECTORY}/${ARGS_GENERATE_HEADER}.h")
+        list(APPEND out_files "${DIRECTORY}/${ARGS_GENERATE_HEADER}_internal.h")
+        list(APPEND header_arguments "--header=${DIRECTORY}/${ARGS_GENERATE_HEADER}.h")
+        list(APPEND header_arguments "--internal-header=${DIRECTORY}/${ARGS_GENERATE_HEADER}_internal.h")
+    endif(ARGS_GENERATE_HEADER)
+
+    add_custom_command(OUTPUT ${out_files} 
+    COMMAND 
+        ${VALA_EXECUTABLE} 
+    ARGS 
+        "-C" 
+        ${header_arguments} 
+        ${vapi_arguments}
+        "-b" ${CMAKE_CURRENT_SOURCE_DIR} 
+        "-d" ${DIRECTORY} 
+        ${vala_pkg_opts} 
+        ${ARGS_OPTIONS} 
+        ${in_files} 
+        ${custom_vapi_arguments}
+    DEPENDS 
+        ${in_files} 
+        ${ARGS_CUSTOM_VAPIS}
+    )
+endmacro(vala_precompile)

=== added file 'cmake/vala/ValaVersion.cmake'
--- cmake/vala/ValaVersion.cmake	1970-01-01 00:00:00 +0000
+++ cmake/vala/ValaVersion.cmake	2011-02-23 11:26:02 +0000
@@ -0,0 +1,96 @@
+##
+# Copyright 2009-2010 Jakob Westhoff. All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+# 
+#    1. Redistributions of source code must retain the above copyright notice,
+#       this list of conditions and the following disclaimer.
+# 
+#    2. 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.
+# 
+# THIS SOFTWARE IS PROVIDED BY JAKOB WESTHOFF ``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 JAKOB WESTHOFF 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.
+# 
+# The views and conclusions contained in the software and documentation are those
+# of the authors and should not be interpreted as representing official policies,
+# either expressed or implied, of Jakob Westhoff
+##
+
+include(ParseArguments)
+find_package(Vala REQUIRED)
+
+##
+# Ensure a certain valac version is available
+#
+# The initial argument is the version to check for
+# 
+# It may be followed by a optional parameter to specifiy a version range. The
+# following options are valid:
+# 
+# EXACT
+#   Vala needs to be available in the exact version given
+# 
+# MINIMUM
+#   The provided version is the minimum version. Therefore Vala needs to be
+#   available in the given version or any higher version
+#
+# MAXIMUM
+#   The provided version is the maximum. Therefore Vala needs to be available
+#   in the given version or any version older than this
+#
+# If no option is specified the version will be treated as a minimal version.
+##
+macro(ensure_vala_version version)
+    parse_arguments(ARGS "" "MINIMUM;MAXIMUM;EXACT" ${ARGN})
+	set(compare_message "")
+	set(error_message "")
+	if(ARGS_MINIMUM)
+		set(compare_message "a minimum ")
+		set(error_message "or greater ")
+	elseif(ARGS_MAXIMUM)
+		set(compare_message "a maximum ")
+		set(error_message "or less ")
+	endif(ARGS_MINIMUM)
+	
+	message(STATUS 
+		"checking for ${compare_message}Vala version of ${version}"
+	)
+
+	unset(version_accepted)
+	
+	# MINIMUM is the default if no option is specified
+	if(ARGS_EXACT)
+		if(${VALA_VERSION} VERSION_EQUAL ${version} )
+			set(version_accepted TRUE)	
+		endif(${VALA_VERSION} VERSION_EQUAL ${version})
+	elseif(ARGS_MAXIMUM)
+		if(${VALA_VERSION} VERSION_LESS ${version} OR ${VALA_VERSION} VERSION_EQUAL ${version})
+			set(version_accepted TRUE)	
+		endif(${VALA_VERSION} VERSION_LESS ${version} OR ${VALA_VERSION} VERSION_EQUAL ${version})
+	else(ARGS_MAXIMUM)
+		if(${VALA_VERSION} VERSION_GREATER ${version} OR ${VALA_VERSION} VERSION_EQUAL ${version})
+			set(version_accepted TRUE)	
+		endif(${VALA_VERSION} VERSION_GREATER ${version} OR ${VALA_VERSION} VERSION_EQUAL ${version})
+	endif(ARGS_EXACT)
+
+	if (NOT version_accepted)
+		message(FATAL_ERROR 
+			"Vala version ${version} ${error_message}is required."
+		)
+	endif(NOT version_accepted)
+
+	message(STATUS
+		"  found Vala, version ${VALA_VERSION}"
+	)
+endmacro(ensure_vala_version)