-project(SimGrid C)
-
-set(CMAKE_C_FLAGS "" CACHE TYPE INTERNAL FORCE)
-set(CMAKE_CXX_FLAGS "" CACHE TYPE INTERNAL FORCE)
-set(CMAKE_EXE_LINKER_FLAGS "" CACHE TYPE INTERNAL FORCE)
-set(CMAKE_C_LINK_FLAGS "" CACHE TYPE INTERNAL FORCE)
-set(CMAKE_Fortran_FLAGS "" CACHE TYPE INTERNAL FORCE)
-set(CMAKE_Fortran_LINK_FLAGS "" CACHE TYPE INTERNAL FORCE)
-## Mapping version number -> version name
-# 3.5.99 -> alpha1 (oops)
-# 3.5.9{1,2} -> beta{1,2}
-# 3.5.9{3,4,5} -> rc{1,2,3}
-# 3.6.{0,1,2} -> release 3.6, 3.6.1, 3.6.2
-# 3.7.{0,1} -> release 3.7, 3.7.1
-# 3.8.{0,1} -> release 3.8, 3.8.1
-# 3.9.0 -> release 3.9
+
+##
+## Check the C/C++ standard that we need
+## See also tools/cmake/Flags.cmake that sets our paranoid warning flags
+INCLUDE(CheckCCompilerFlag)
+CHECK_C_COMPILER_FLAG(-fstack-cleaner HAVE_C_STACK_CLEANER)
+
+## Request full debugging flags
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g3")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
+set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -g")
+
+if (CMAKE_COMPILER_IS_GNUCC)
+ if (COMPILER_CXX_VERSION_MAJOR_MINOR STRLESS "4.7")
+ message(FATAL_ERROR
+ "SimGrid needs at least g++ version 4.7 to compile "
+ "(c++11 support of previous versions is too limited).")
+ endif()
+endif()
+
+## We need a decent support of the c++11 standard
+include(CheckCXXCompilerFlag)
+CHECK_CXX_COMPILER_FLAG("-std=gnu++11" COMPILER_SUPPORTS_CXX11)
+if(COMPILER_SUPPORTS_CXX11)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")
+else()
+ message(FATAL_ERROR
+ "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. "
+ "Please use a decent C++ compiler.")
+endif()
+
+### And we need C11 standard, too
+include(CheckCCompilerFlag)
+CHECK_C_COMPILER_FLAG("-std=gnu11" COMPILER_SUPPORTS_C11)
+if(COMPILER_SUPPORTS_C11)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu11")
+else()
+ message(FATAL_ERROR
+ "The compiler ${CMAKE_C_COMPILER} has no C11 support. "
+ "Please use a decent C compiler "
+ "(note that c++11 support of ${CMAKE_CXX_COMPILER} seems ok).")
+endif()
+if(APPLE AND ("4.6" GREATER COMPILER_C_VERSION_MAJOR_MINOR))
+ ### gcc 4.[1-5] cannot compile ucontext on OSX
+ message(STATUS "Ucontext can't be used with this version of gcc (must be greater than 4.5)")
+ set(HAVE_UCONTEXT_H 0)
+endif()
+
+
+### SMPI vs. Fortran
+if ((NOT DEFINED enable_smpi OR enable_smpi) AND NOT APPLE) # smpi is enabled by default
+ # Call enable_language(Fortran) in order to load the build rules for
+ # this language, needed by teshsuite/smpi/mpich-test/. Use
+ # CMAKE_FORCE_Fortran_COMPILER to bypass checks for a working
+ # compiler (smpiff don't exist at configure time).
+ include(CMakeForceCompiler)
+ if(NOT COMMAND CMAKE_FORCE_Fortran_COMPILER)
+ MACRO(CMAKE_FORCE_Fortran_COMPILER compiler id)
+ SET(CMAKE_Fortran_COMPILER "${compiler}")
+ SET(CMAKE_Fortran_COMPILER_ID_RUN TRUE)
+ SET(CMAKE_Fortran_COMPILER_ID ${id})
+ SET(CMAKE_Fortran_COMPILER_WORKS TRUE)
+ SET(CMAKE_Fortran_COMPILER_FORCED TRUE)
+
+ # Set old compiler id variables.
+ IF("${CMAKE_Fortran_COMPILER_ID}" MATCHES "GNU")
+ SET(CMAKE_COMPILER_IS_GNUG77 1)
+ ENDIF("${CMAKE_Fortran_COMPILER_ID}" MATCHES "GNU")
+ ENDMACRO(CMAKE_FORCE_Fortran_COMPILER)
+ endif()
+ CMAKE_FORCE_Fortran_COMPILER(smpiff smpiff)
+ enable_language(Fortran OPTIONAL)
+endif()
+
+#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#
+# Build the version number #
+#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#