-
-if(NOT __VISUALC__ AND NOT __BORLANDC__)
- CHECK_CXX_COMPILER_FLAG("-std=c++11" HAVE_CXX11)
- CHECK_CXX_COMPILER_FLAG("-std=c++0x" HAVE_CXX0X)
- if(HAVE_CXX11)
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
- elseif(HAVE_CXX0X)
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
- else()
- message(STATUS "Missing support for C++11.")
+CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
+if(COMPILER_SUPPORTS_CXX11)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+else()
+ message(FATAL_ERROR
+ "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. "
+ "Please use a decent C++ compiler.")
+endif()
+if (CMAKE_COMPILER_IS_GNUCC)
+ if (COMPILER_CXX_VERSION_MAJOR_MINOR STRLESS "4.7")
+ message(FATAL_ERROR
+ "SimGrid needs g++ version 4.7 to compile "
+ "(c++11 support of previous versions is too limited).")