Add flag -Wno-error=unused-but-set-variable if gcc >=4.6

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/contrib/trunk/simgrid-java@9904 48e7efb5-ca39-0410-a469-dd3cf9ba447f

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 401e41e..1f8e31b 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,14 @@ set(CMAKE_EXE_LINKER_FLAGS "" CACHE TYPE INTERNAL FORCE)
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_HOME_DIRECTORY}/lib")
 set(soversion 1)
 
+########
+## GCC #
+########
+exec_program("${CMAKE_C_COMPILER} --version" OUTPUT_VARIABLE "COMPILER_C_VERSION")
+string(REGEX MATCH "[0-9].[0-9].[0-9]" COMPILER_C_VERSION "${COMPILER_C_VERSION}")
+string(REGEX MATCH "^[0-9].[0-9]" COMPILER_C_VERSION_MAJOR_MINOR "${COMPILER_C_VERSION}")
+string(REPLACE "${COMPILER_C_VERSION_MAJOR_MINOR}." "" COMPILER_C_VERSION_PATCH "${COMPILER_C_VERSION}")
+
 ########
 ## SVN #
 ########
@@ -138,6 +146,11 @@ set(INCLUDE_PATH "-I${CMAKE_HOME_DIRECTORY}/src -I$ENV{SIMGRID_ROOT}/include -I$
 set(LIB_PATH "-L$ENV{SIMGRID_ROOT}/lib")
 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${INCLUDE_PATH} ${LIB_PATH}")
 
+if(COMPILER_C_VERSION_MAJOR_MINOR MATCHES "4.6")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-error=unused-but-set-variable ")
+endif(COMPILER_C_VERSION_MAJOR_MINOR MATCHES "4.6")
+
+
 ###########
 # TARGETS #
 ###########