Changeset 3117 for code/branches/pch/cmake/BuildConfigGCC.cmake

Timestamp:

Jun 3, 2009, 8:40:17 PM (15 years ago)

Author:

rgrieder

Message:

Adding experimental precompiled header file support. It seems to work quite well with MSVC, but has a performance penalty when used with GCC

File:

• code/branches/pch/cmake/BuildConfigGCC.cmake (modified) (1 diff)

code/branches/pch/cmake/BuildConfigGCC.cmake

@@ -43 +43 @@
 ENDIF()
 
+# GCC only supports PCH in versions 3.4 and above
+INCLUDE(CompareVersionStrings)
+COMPARE_VERSION_STRINGS("${GCC_VERSION}" "3.4.0" _compare_result)
+IF(_compare_result GREATER -1)
+  SET(PCH_COMPILER_SUPPORT TRUE)
+ENDIF()
+
 # Also include environment flags. Could cause conflicts though
 SET_COMPILER_FLAGS("$ENV{CXXFLAGS}" CXX CACHE)