CMake/Modules/CMakeDetermineCXXCompiler.c...

19 lines
895 B
CMake

# determine the compiler to use for C++ programs
# NOTE, a generator may set CMAKE_CXX_COMPILER before
# loading this file to force a compiler.
FIND_PROGRAM(CMAKE_CXX_COMPILER_FULLPATH NAMES $ENV{CXX} c++ g++ CC aCC cl bcc )
GET_FILENAME_COMPONENT(CMAKE_CXX_COMPILER ${CMAKE_CXX_COMPILER_FULLPATH} NAME_WE)
# test to see if the cxx compiler is gnu
EXEC_PROGRAM(${CMAKE_CXX_COMPILER} ARGS -E ${CMAKE_ROOT}/Modules/CMakeTestGNU.c OUTPUT_VARIABLE CMAKE_COMPILER_OUTPUT RETURN_VALUE CMAKE_COMPILER_RETURN)
IF(NOT CMAKE_COMPILER_RETURN)
IF(${CMAKE_COMPILER_OUTPUT} MATCHES ".*THIS_IS_GNU.*" )
SET(CMAKE_COMPILER_IS_GNUGXX 1)
ENDIF(${CMAKE_COMPILER_OUTPUT} MATCHES ".*THIS_IS_GNU.*" )
ENDIF(NOT CMAKE_COMPILER_RETURN)
# configure all variables set in this file
CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeCXXCompiler.cmake.in
${PROJECT_BINARY_DIR}/CMakeCXXCompiler.cmake)