Initial work for GCC 4.4 compatibility.

GCC 4.4 compatibility also enables GCC 4.5 compatibility.

CMakeLists.txt

@@ -3,6 +3,7 @@ cmake_minimum_required(VERSION 2.8.8)
 project(Magnum)
 
 option(TARGET_GLES "Build for OpenGL ES 2 instead of desktop OpenGL" OFF)
+option(GCC44_COMPATIBILITY "Enable compatibility mode for GCC 4.4 (might disable some features)" OFF)
 option(GCC45_COMPATIBILITY "Enable compatibility mode for GCC 4.5 (might disable some features)" OFF)
 
 option(BUILD_TESTS "Build unit tests (requires Qt4)." OFF)

src/CMakeLists.txt

@@ -4,6 +4,11 @@ if(TARGET_GLES)
     set(MAGNUM_TARGET_GLES 1)
 endif()
 
+if(GCC44_COMPATIBILITY)
+    set(MAGNUM_GCC44_COMPATIBILITY 1)
+    set(GCC45_COMPATIBILITY 1)
+endif()
+
 if(GCC45_COMPATIBILITY)
     set(MAGNUM_GCC45_COMPATIBILITY 1)
 endif()

src/magnumConfigure.h.cmake

@@ -1,2 +1,3 @@
 #cmakedefine MAGNUM_TARGET_GLES
+#cmakedefine MAGNUM_GCC44_COMPATIBILITY
 #cmakedefine MAGNUM_GCC45_COMPATIBILITY