CMake/Modules/CMakeSystemSpecificInformat...

89 lines
4.0 KiB
CMake

# This file is included by cmGlobalGenerator::EnableLanguage.
# It is included after the compiler has been determined, so
# we know things like the compiler name and if the compiler is gnu.
# before cmake 2.6 these variables were set in cmMakefile.cxx. This is still
# done to keep scripts and custom language and compiler modules working.
# But they are reset here and set again in the platform files for the target
# platform, so they can be used for testing the target platform instead
# of testing the host platform.
SET(APPLE )
SET(UNIX )
SET(CYGWIN )
SET(WIN32 )
# include Generic system information
INCLUDE(CMakeGenericSystem)
# 2. now include SystemName.cmake file to set the system specific information
SET(CMAKE_SYSTEM_INFO_FILE Platform/${CMAKE_SYSTEM_NAME})
INCLUDE(${CMAKE_SYSTEM_INFO_FILE} OPTIONAL RESULT_VARIABLE _INCLUDED_SYSTEM_INFO_FILE)
IF(NOT _INCLUDED_SYSTEM_INFO_FILE)
MESSAGE("System is unknown to cmake, create:\n${CMAKE_SYSTEM_INFO_FILE}"
" to use this system, please send your config file to "
"cmake@www.cmake.org so it can be added to cmake")
IF(EXISTS ${CMAKE_BINARY_DIR}/CMakeCache.txt)
CONFIGURE_FILE(${CMAKE_BINARY_DIR}/CMakeCache.txt
${CMAKE_BINARY_DIR}/CopyOfCMakeCache.txt COPYONLY)
MESSAGE("Your CMakeCache.txt file was copied to CopyOfCMakeCache.txt. "
"Please send that file to cmake@www.cmake.org.")
ENDIF(EXISTS ${CMAKE_BINARY_DIR}/CMakeCache.txt)
ENDIF(NOT _INCLUDED_SYSTEM_INFO_FILE)
# The Eclipse generator needs to know the standard include path
# so that Eclipse ca find the headers at runtime and parsing etc. works better
# This is done here by actually running gcc with the options so it prints its
# system include directories, which are parsed then and stored in the cache.
IF("${CMAKE_EXTRA_GENERATOR}" MATCHES "Eclipse")
MACRO(_DETERMINE_GCC_SYSTEM_INCLUDE_DIRS _lang _result)
SET(${_result})
SET(_gccOutput)
FILE(WRITE "${CMAKE_BINARY_DIR}/CMakeFiles/dummy" "\n" )
EXECUTE_PROCESS(COMMAND ${CMAKE_C_COMPILER} -v -E -x ${_lang} dummy
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/CMakeFiles
ERROR_VARIABLE _gccOutput
OUTPUT_QUIET )
FILE(REMOVE "${CMAKE_BINARY_DIR}/CMakeFiles/dummy")
IF( "${_gccOutput}" MATCHES "> search starts here[^\n]+\n *(.+) *\n *End of (search) list" )
SET(${_result} ${CMAKE_MATCH_1})
STRING(REPLACE "\n" " " ${_result} "${${_result}}")
SEPARATE_ARGUMENTS(${_result})
ENDIF( "${_gccOutput}" MATCHES "> search starts here[^\n]+\n *(.+) *\n *End of (search) list" )
ENDMACRO(_DETERMINE_GCC_SYSTEM_INCLUDE_DIRS _lang)
# Now check for C
IF ("${CMAKE_C_COMPILER_ID}" MATCHES GNU AND NOT CMAKE_ECLIPSE_C_SYSTEM_INCLUDE_DIRS)
_DETERMINE_GCC_SYSTEM_INCLUDE_DIRS(c _dirs)
SET(CMAKE_ECLIPSE_C_SYSTEM_INCLUDE_DIRS "${_dirs}" CACHE INTERNAL "C compiler system include directories")
ENDIF ("${CMAKE_C_COMPILER_ID}" MATCHES GNU AND NOT CMAKE_ECLIPSE_C_SYSTEM_INCLUDE_DIRS)
# And now the same for C++
IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES GNU AND NOT CMAKE_ECLIPSE_CXX_SYSTEM_INCLUDE_DIRS)
_DETERMINE_GCC_SYSTEM_INCLUDE_DIRS(c++ _dirs)
SET(CMAKE_ECLIPSE_CXX_SYSTEM_INCLUDE_DIRS "${_dirs}" CACHE INTERNAL "CXX compiler system include directories")
ENDIF ("${CMAKE_CXX_COMPILER_ID}" MATCHES GNU AND NOT CMAKE_ECLIPSE_CXX_SYSTEM_INCLUDE_DIRS)
ENDIF("${CMAKE_EXTRA_GENERATOR}" MATCHES "Eclipse")
# for most systems a module is the same as a shared library
# so unless the variable CMAKE_MODULE_EXISTS is set just
# copy the values from the LIBRARY variables
# this has to be done after the system information has been loaded
IF(NOT CMAKE_MODULE_EXISTS)
SET(CMAKE_SHARED_MODULE_PREFIX "${CMAKE_SHARED_LIBRARY_PREFIX}")
SET(CMAKE_SHARED_MODULE_SUFFIX "${CMAKE_SHARED_LIBRARY_SUFFIX}")
SET(CMAKE_SHARED_MODULE_RUNTIME_C_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG})
SET(CMAKE_SHARED_MODULE_RUNTIME_C_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP})
ENDIF(NOT CMAKE_MODULE_EXISTS)
SET(CMAKE_SYSTEM_SPECIFIC_INFORMATION_LOADED 1)