+### Need to set rc ccompiler before enable language
+if(WIN32)
+ SET(CMAKE_RC_COMPILER "windres")
+endif(WIN32)
+project(SimGrid CXX C Fortran)
+
+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
+
+set(SIMGRID_VERSION_MAJOR "3")
+set(SIMGRID_VERSION_MINOR "9")
+set(SIMGRID_VERSION_PATCH "0")
+
+if(${SIMGRID_VERSION_PATCH} EQUAL "0")
+ set(release_version "${SIMGRID_VERSION_MAJOR}.${SIMGRID_VERSION_MINOR}")
+else()
+ set(release_version "${SIMGRID_VERSION_MAJOR}.${SIMGRID_VERSION_MINOR}.${SIMGRID_VERSION_PATCH}")
+endif()
+set(libsimgrid_version "${release_version}")
+set(libgras_version "${release_version}")
+set(libsmpi_version "${release_version}")
+set(GCC_NEED_VERSION "4.0")
+set(APPLE_NEED_GCC_VERSION "4.6")
+
+### SET THE LIBRARY EXTENSION AND GCC VERSION
+if(APPLE) #MAC
+ set(LIB_EXE "dylib")
+else()
+ if(WIN32) #WINDOWS
+ set(LIB_EXE "a")
+ set(BIN_EXE ".exe")
+ else() #UNIX
+ set(LIB_EXE "so")
+ endif()
+endif()
+
+string(REGEX MATCH "gcc" GCC "${CMAKE_C_COMPILER}")
+if(GCC)
+ exec_program("${CMAKE_C_COMPILER} --version" OUTPUT_VARIABLE "COMPILER_C_VERSION")
+ exec_program("${CMAKE_CXX_COMPILER} --version" OUTPUT_VARIABLE "COMPILER_CXX_VERSION")
+ string(REGEX MATCH "[0-9].[0-9].[0-9]" COMPILER_C_VERSION "${COMPILER_C_VERSION}")
+ string(REGEX MATCH "[0-9].[0-9].[0-9]" COMPILER_CXX_VERSION "${COMPILER_CXX_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 "${COMPILER_C_VERSION}")
+
+ if(${GCC_NEED_VERSION} GREATER COMPILER_C_VERSION_MAJOR_MINOR)
+ message(FATAL_ERROR "Gcc must be to version ${GCC_NEED_VERSION} current version ${COMPILER_C_VERSION_MAJOR_MINOR}")
+ endif()
+endif()
+
+string(REGEX MATCH "cl.exe" VBC "${CMAKE_C_COMPILER}")
+if(VBC)
+ message(FATAL_ERROR "VB is not yet supported by Simgrid.")
+endif()