cmake_minimum_required(VERSION 2.6)
+
### Need to set rc ccompiler before enable language
if(WIN32)
SET(CMAKE_RC_COMPILER "windres")
endif()
project(SimGrid C)
+##
+## Check the C/C++ standard that we need
+## See also buildtools/Cmake/Flags.cmake that sets our paranoid warning flags
+
enable_language(CXX)
INCLUDE(CheckCCompilerFlag)
CHECK_C_COMPILER_FLAG(-fstack-cleaner HAVE_C_STACK_CLEANER)
-if (APPLE)
- set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
- set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+## Request full debugging flags
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g3")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
+set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -g")
+
+## We need a decent support of the c++11 standard
+include(CheckCXXCompilerFlag)
+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 ${CMAKE_CXX_COMPILER} has no C++11 support. "
+ "Please use a decent C++ compiler.")
+endif()
+if (CMAKE_COMPILER_IS_GNUCC)
+ if (COMPILER_CXX_VERSION_MAJOR_MINOR STRLESS "4.7")
+ message(FATAL_ERROR
+ "SimGrid needs g++ version 4.7 to compile "
+ "(c++11 support of previous versions is too limited).")
+ endif()
endif()
+### And we need C11 standard, too
+include(CheckCCompilerFlag)
+CHECK_C_COMPILER_FLAG("-std=gnu11" COMPILER_SUPPORTS_C11)
+if(COMPILER_SUPPORTS_C11)
+ set(CMAKE_C_FLAGS "${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 ${CMAKE_CXX_COMPILER} seems ok).")
+endif()
+
+
+### SMPI vs. Fortran
if ((NOT DEFINED enable_smpi OR enable_smpi) AND NOT APPLE) # smpi is enabled by default
# Call enable_language(Fortran) in order to load the build rules for
# this language, needed by teshsuite/smpi/mpich-test/. Use
message(FATAL_ERROR "-- SimGrid cannot be compiled without Perl installed -- sorry. Bailling out.")
endif()
+if (APPLE)
+ set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
+ set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+endif()
+
### Set some variables for Cmake
SET(LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR}/lib)
-set(warnCFLAGS "")
-set(optCFLAGS "")
-
##
-## Request full debugging flags
+## This file is in charge of setting our paranoid flags with regard to warnings and optimization.
##
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g3")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
-set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -g")
+## These flags do break some classical CMake tests, so you don't
+## want to do so before the very end of the configuration.
+##
+## Other compiler flags (C/C++ standard version) are tested and set
+## by the beginning of the configuration, directly in ~/CMakeList.txt
-##
-## We need a decent support of the c++11 standard
-##
-include(CheckCXXCompilerFlag)
-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 ${CMAKE_CXX_COMPILER} has no C++11 support. "
- "Please use a decent C++ compiler.")
-endif()
-if (CMAKE_COMPILER_IS_GNUCC)
- if (COMPILER_CXX_VERSION_MAJOR_MINOR STRLESS "4.7")
- message(FATAL_ERROR
- "SimGrid needs g++ version 4.7 to compile "
- "(c++11 support of previous versions is too limited).")
- endif()
-endif()
+set(warnCFLAGS "")
+set(optCFLAGS "")
-###
-### And we need C11 standard, too
-###
-include(CheckCCompilerFlag)
-CHECK_C_COMPILER_FLAG("-std=gnu11" COMPILER_SUPPORTS_C11)
-if(COMPILER_SUPPORTS_C11)
- set(CMAKE_C_FLAGS "${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(enable_compile_warnings)