[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [33715] trunk/blender/build_files/cmake/ macros.cmake: fix for error in testing C/C++ flags

[Campbell Barton]

Revision: 33715
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=33715
Author:   campbellbarton
Date:     2010-12-16 18:54:00 +0100 (Thu, 16 Dec 2010)

Log Message:
-----------
fix for error in testing C/C++ flags

Modified Paths:
--------------
    trunk/blender/build_files/cmake/macros.cmake

Modified: trunk/blender/build_files/cmake/macros.cmake
===================================================================
--- trunk/blender/build_files/cmake/macros.cmake	2010-12-16 17:19:24 UTC (rev 33714)
+++ trunk/blender/build_files/cmake/macros.cmake	2010-12-16 17:54:00 UTC (rev 33715)
@@ -275,15 +275,34 @@
 
 endmacro()
 
+
+# XXX, until cmake fix this bug! from CheckCCompilerFlag.cmakem reported 11615
+INCLUDE(CheckCSourceCompiles)
+MACRO (CHECK_C_COMPILER_FLAG__INTERNAL _FLAG _RESULT)
+   SET(SAFE_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}")
+   SET(CMAKE_REQUIRED_DEFINITIONS "${_FLAG}")
+   CHECK_C_SOURCE_COMPILES("int main(void) { return 0;}" ${_RESULT}
+     # Some compilers do not fail with a bad flag
+     FAIL_REGEX "unrecognized .*option"                     # GNU
+     FAIL_REGEX "ignoring unknown option"                   # MSVC
+     FAIL_REGEX "[Uu]nknown option"                         # HP
+     FAIL_REGEX "[Ww]arning: [Oo]ption"                     # SunPro
+     FAIL_REGEX "command option .* is not recognized"       # XL
+     )
+   SET (CMAKE_REQUIRED_DEFINITIONS "${SAFE_CMAKE_REQUIRED_DEFINITIONS}")
+ENDMACRO (CHECK_C_COMPILER_FLAG)
+# XXX, end duplicate code.
+
 macro(ADD_CHECK_C_COMPILER_FLAG
 	_CFLAGS
 	_FLAG)
 
-	include(CheckCCompilerFlag)
+	# include(CheckCCompilerFlag)
 
-	CHECK_C_COMPILER_FLAG(${_FLAG} SUPPORT_WALL)
-
-	if(SUPPORT_WALL)
+	# odd workaround
+	set(CFLAG_TEST "CFLAG_TEST")
+	CHECK_C_COMPILER_FLAG__INTERNAL("${_FLAG}" CFLAG_TEST)
+	if(CFLAG_TEST)
 		# message(STATUS "Using CFLAG: ${_FLAG}")
 		set(${_CFLAGS} "${${_CFLAGS}} ${_FLAG}")
 	else()
@@ -297,9 +316,10 @@
 
 	include(CheckCXXCompilerFlag)
 
-	CHECK_CXX_COMPILER_FLAG(${_FLAG} SUPPORT_WALL)
-
-	if(SUPPORT_WALL)
+	# odd workaround
+	set(CFLAG_TEST "CXXFLAG_TEST")
+	CHECK_CXX_COMPILER_FLAG("${_FLAG}" CXXFLAG_TEST)
+	if(CXXFLAG_TEST)
 		# message(STATUS "Using CXXFLAG: ${_FLAG}")
 		set(${_CXXFLAGS} "${${_CXXFLAGS}} ${_FLAG}")
 	else()