kc3-lang/SDL/VisualC/pkg-support/cmake/sdl2-config-version.cmake

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• Hash : 8ac8230b
  Author :
  Date : 2022-05-25T23:57:26
  

  Add CMake configuration files, meant for VC devel package

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• VisualC/pkg-support/cmake/sdl2-config-version.cmake

• # based on the files generated by CMake's write_basic_package_version_file
  
  # SDL2 CMake version configuration file:
  # This file is meant to be placed in a cmake subfolder of SDL2-devel-2.x.y-VC
  
  if(NOT EXISTS "${CMAKE_CURRENT_LIST_DIR}/../include/SDL_version.h")
      message(AUTHOR_WARNING "Could not find SDL_version.h. This script is meant to be placed in the root of SDL2-devel-2.x.y-VC")
      return()
  endif()
  
  file(READ "${CMAKE_CURRENT_LIST_DIR}/../include/SDL_version.h" _sdl_version_h)
  string(REGEX MATCH "#define[ \t]+SDL_MAJOR_VERSION[ \t]+([0-9]+)" _sdl_major_re "${_sdl_version_h}")
  set(_sdl_major "${CMAKE_MATCH_1}")
  string(REGEX MATCH "#define[ \t]+SDL_MINOR_VERSION[ \t]+([0-9]+)" _sdl_minor_re "${_sdl_version_h}")
  set(_sdl_minor "${CMAKE_MATCH_1}")
  string(REGEX MATCH "#define[ \t]+SDL_PATCHLEVEL[ \t]+([0-9]+)" _sdl_patch_re "${_sdl_version_h}")
  set(_sdl_patch "${CMAKE_MATCH_1}")
  if(_sdl_major_re AND _sdl_minor_re AND _sdl_patch_re)
      set(PACKAGE_VERSION "${_sdl_major}.${_sdl_minor}.${_sdl_patch}")
  else()
      message(AUTHOR_WARNING "Could not extract version from SDL_version.h.")
      return()
  endif()
  
  if(PACKAGE_FIND_VERSION_RANGE)
      # Package version must be in the requested version range
      if ((PACKAGE_FIND_VERSION_RANGE_MIN STREQUAL "INCLUDE" AND PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION_MIN)
          OR ((PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "INCLUDE" AND PACKAGE_VERSION VERSION_GREATER PACKAGE_FIND_VERSION_MAX)
          OR (PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "EXCLUDE" AND PACKAGE_VERSION VERSION_GREATER_EQUAL PACKAGE_FIND_VERSION_MAX)))
          set(PACKAGE_VERSION_COMPATIBLE FALSE)
      else()
          set(PACKAGE_VERSION_COMPATIBLE TRUE)
      endif()
  else()
      if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
          set(PACKAGE_VERSION_COMPATIBLE FALSE)
      else()
          set(PACKAGE_VERSION_COMPATIBLE TRUE)
          if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
              set(PACKAGE_VERSION_EXACT TRUE)
          endif()
      endif()
  endif()
  
  # if the using project doesn't have CMAKE_SIZEOF_VOID_P set, fail.
  if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "")
      set(PACKAGE_VERSION_UNSUITABLE TRUE)
  endif()
  
  # check that the installed version has the same 32/64bit-ness as the one which is currently searching:
  if(NOT (CMAKE_SIZEOF_VOID_P STREQUAL "8" OR CMAKE_SIZEOF_VOID_P STREQUAL "4"))
      set(PACKAGE_VERSION "${PACKAGE_VERSION} (32+64bit)")
      set(PACKAGE_VERSION_UNSUITABLE TRUE)
  endif()
  

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