CMake/Modules/CMakeSystemSpecificInformation.cmake

#=============================================================================
# Copyright 2002-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
#  License text for the above reference.)

# 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)


# optionally include a file which can do extra-generator specific things, e.g.
# CMakeFindEclipseCDT4.cmake asks gcc for the system include dirs for the Eclipse CDT4 generator
IF(CMAKE_EXTRA_GENERATOR)
  STRING(REPLACE " " "" _CMAKE_EXTRA_GENERATOR_NO_SPACES ${CMAKE_EXTRA_GENERATOR} )
  INCLUDE("CMakeFind${_CMAKE_EXTRA_GENERATOR_NO_SPACES}" OPTIONAL)
ENDIF(CMAKE_EXTRA_GENERATOR)


# 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}")
ENDIF(NOT CMAKE_MODULE_EXISTS)


SET(CMAKE_SYSTEM_SPECIFIC_INFORMATION_LOADED 1)