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