Changeset 3196 for code/trunk/cmake/BuildConfigGCC.cmake

Timestamp:

Jun 20, 2009, 9:20:47 AM (16 years ago)

Author:

rgrieder

Message:

Merged pch branch back to trunk.

Location:

code/trunk

Files:

• . (modified) (1 prop)
• cmake/BuildConfigGCC.cmake (modified) (3 diffs)

code/trunk/cmake/BuildConfigGCC.cmake

@@ -24 +24 @@
  #
 
+# Shortcut for CMAKE_COMPILER_IS_GNUCXX and ..._GNUC
+SET(CMAKE_COMPILER_IS_GNU TRUE)
+
 # Determine compiler version
 EXEC_PROGRAM(
@@ -38 +41 @@
 IF(_compare_result LESS 0)
   SET(GCC_NO_SYSTEM_HEADER_SUPPORT TRUE)
+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()
 
@@ -67 +77 @@
 ADD_COMPILER_FLAGS("-Wno-deprecated" CXX CACHE)
 
+# Always show why a precompiled header file could not be used
+ADD_COMPILER_FLAGS("-Winvalid-pch" CXX CACHE)
+
 # Increase warning level if requested
 IF(EXTRA_COMPILER_WARNINGS)