Modules/CMakeSystemSpecificInformation.cmake

   1
   2 # This file is included by cmGlobalGenerator::EnableLanguage.
   3 # It is included after the compiler has been determined, so
   4 # we know things like the compiler name and if the compiler is gnu.
   5
   6 # before cmake 2.6 these variables were set in cmMakefile.cxx. This is still
   7 # done to keep scripts and custom language and compiler modules working.
   8 # But they are reset here and set again in the platform files for the target
   9 # platform, so they can be used for testing the target platform instead
  10 # of testing the host platform.
  11 SET(APPLE  )
  12 SET(UNIX   )
  13 SET(CYGWIN )
  14 SET(WIN32  )
  15
  16
  17 # include Generic system information
  18 INCLUDE(CMakeGenericSystem)
  19
  20 # 2. now include SystemName.cmake file to set the system specific information
  21 SET(CMAKE_SYSTEM_INFO_FILE Platform/${CMAKE_SYSTEM_NAME})
  22
  23 INCLUDE(${CMAKE_SYSTEM_INFO_FILE} OPTIONAL RESULT_VARIABLE _INCLUDED_SYSTEM_INFO_FILE)
  24
  25 IF(NOT _INCLUDED_SYSTEM_INFO_FILE)
  26   MESSAGE("System is unknown to cmake, create:\n${CMAKE_SYSTEM_INFO_FILE}"
  27           " to use this system, please send your config file to "
  28           "cmake@www.cmake.org so it can be added to cmake")
  29   IF(EXISTS ${CMAKE_BINARY_DIR}/CMakeCache.txt)
  30     CONFIGURE_FILE(${CMAKE_BINARY_DIR}/CMakeCache.txt
  31                    ${CMAKE_BINARY_DIR}/CopyOfCMakeCache.txt COPYONLY)
  32     MESSAGE("Your CMakeCache.txt file was copied to CopyOfCMakeCache.txt. "
  33             "Please send that file to cmake@www.cmake.org.")
  34    ENDIF(EXISTS ${CMAKE_BINARY_DIR}/CMakeCache.txt)
  35 ENDIF(NOT _INCLUDED_SYSTEM_INFO_FILE)
  36
  37
  38 # optionally include a file which can do extra-generator specific things, e.g.
  39 # CMakeFindEclipseCDT4.cmake asks gcc for the system include dirs for the Eclipse CDT4 generator
  40 IF(CMAKE_EXTRA_GENERATOR)
  41   STRING(REPLACE " " "" _CMAKE_EXTRA_GENERATOR_NO_SPACES ${CMAKE_EXTRA_GENERATOR} )
  42   INCLUDE("CMakeFind${_CMAKE_EXTRA_GENERATOR_NO_SPACES}" OPTIONAL)
  43 ENDIF(CMAKE_EXTRA_GENERATOR)
  44
  45
  46 # for most systems a module is the same as a shared library
  47 # so unless the variable CMAKE_MODULE_EXISTS is set just
  48 # copy the values from the LIBRARY variables
  49 # this has to be done after the system information has been loaded
  50 IF(NOT CMAKE_MODULE_EXISTS)
  51   SET(CMAKE_SHARED_MODULE_PREFIX "${CMAKE_SHARED_LIBRARY_PREFIX}")
  52   SET(CMAKE_SHARED_MODULE_SUFFIX "${CMAKE_SHARED_LIBRARY_SUFFIX}")
  53   SET(CMAKE_SHARED_MODULE_RUNTIME_C_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG})
  54   SET(CMAKE_SHARED_MODULE_RUNTIME_C_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP})
  55 ENDIF(NOT CMAKE_MODULE_EXISTS)
  56
  57
  58 SET(CMAKE_SYSTEM_SPECIFIC_INFORMATION_LOADED 1)