CMake/Modules/CMakeSystemSpecificInformation.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.

# include Generic system information
INCLUDE(CMakeGenericSystem)

# 2. now include SystemName.cmake file to set the system specific information
SET(CMAKE_SYSTEM_INFO_FILE ${CMAKE_ROOT}/Modules/Platform/${CMAKE_SYSTEM_NAME}.cmake)
IF(EXISTS ${CMAKE_SYSTEM_INFO_FILE})
  INCLUDE(Platform/${CMAKE_SYSTEM_NAME} OPTIONAL)
ELSE(EXISTS ${CMAKE_SYSTEM_INFO_FILE})
  MESSAGE("System is unknown to cmake, create:\n${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("You 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(EXISTS ${CMAKE_SYSTEM_INFO_FILE})


# 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_LINK_C_FLAGS ${CMAKE_SHARED_LIBRARY_LINK_C_FLAGS})
  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)