forked from Green-Sky/tomato
sdl (master post 3.1 preview) Merge commit 'e4f454091a943345938608570b104400f62fd625'
This commit is contained in:
193
external/sdl/SDL/cmake/macros.cmake
vendored
193
external/sdl/SDL/cmake/macros.cmake
vendored
@@ -100,6 +100,199 @@ function(SDL_detect_linker)
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endif()
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endfunction()
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function(read_absolute_symlink DEST PATH)
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file(READ_SYMLINK "${PATH}" p)
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if(NOT IS_ABSOLUTE "${p}")
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get_filename_component(pdir "${PATH}" DIRECTORY)
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set(p "${pdir}/${p}")
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endif()
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get_filename_component(p "${p}" ABSOLUTE)
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set("${DEST}" "${p}" PARENT_SCOPE)
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endfunction()
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function(win32_implib_identify_dll DEST IMPLIB)
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cmake_parse_arguments(ARGS "NOTFATAL" "" "" ${ARGN})
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if(CMAKE_DLLTOOL)
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execute_process(
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COMMAND "${CMAKE_DLLTOOL}" --identify "${IMPLIB}"
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RESULT_VARIABLE retcode
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OUTPUT_VARIABLE stdout
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ERROR_VARIABLE stderr)
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if(NOT retcode EQUAL 0)
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if(NOT ARGS_NOTFATAL)
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message(FATAL_ERROR "${CMAKE_DLLTOOL} failed.")
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else()
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set("${DEST}" "${DEST}-NOTFOUND" PARENT_SCOPE)
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return()
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endif()
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endif()
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string(STRIP "${stdout}" result)
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set(${DEST} "${result}" PARENT_SCOPE)
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elseif(MSVC)
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get_filename_component(CMAKE_C_COMPILER_DIRECTORY "${CMAKE_C_COMPILER}" DIRECTORY CACHE)
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find_program(CMAKE_DUMPBIN NAMES dumpbin PATHS "${CMAKE_C_COMPILER_DIRECTORY}")
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if(CMAKE_DUMPBIN)
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execute_process(
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COMMAND "${CMAKE_DUMPBIN}" "-headers" "${IMPLIB}"
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RESULT_VARIABLE retcode
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OUTPUT_VARIABLE stdout
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ERROR_VARIABLE stderr)
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if(NOT retcode EQUAL 0)
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if(NOT ARGS_NOTFATAL)
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message(FATAL_ERROR "dumpbin failed.")
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else()
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set(${DEST} "${DEST}-NOTFOUND" PARENT_SCOPE)
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return()
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endif()
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endif()
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string(REGEX MATCH "DLL name[ ]+:[ ]+([^\n]+)\n" match "${stdout}")
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if(NOT match)
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if(NOT ARGS_NOTFATAL)
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message(FATAL_ERROR "dumpbin did not find any associated dll for ${IMPLIB}.")
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else()
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set(${DEST} "${DEST}-NOTFOUND" PARENT_SCOPE)
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return()
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endif()
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endif()
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set(result "${CMAKE_MATCH_1}")
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set(${DEST} "${result}" PARENT_SCOPE)
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else()
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message(FATAL_ERROR "Cannot find dumpbin, please set CMAKE_DUMPBIN cmake variable")
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endif()
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else()
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if(NOT ARGS_NOTFATAL)
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message(FATAL_ERROR "Don't know how to identify dll from import library. Set CMAKE_DLLTOOL (for mingw) or CMAKE_DUMPBIN (for MSVC)")
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else()
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set(${DEST} "${DEST}-NOTFOUND")
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endif()
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endif()
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endfunction()
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function(get_actual_target)
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set(dst "${ARGV0}")
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set(target "${${dst}}")
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set(input "${target}")
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get_target_property(alias "${target}" ALIASED_TARGET)
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while(alias)
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set(target "${alias}")
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get_target_property(alias "${target}" ALIASED_TARGET)
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endwhile()
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message(DEBUG "get_actual_target(\"${input}\") -> \"${target}\"")
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set("${dst}" "${target}" PARENT_SCOPE)
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endfunction()
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function(target_get_dynamic_library DEST TARGET)
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set(result)
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get_actual_target(TARGET)
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if(WIN32)
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# Use the target dll of the import library
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set(props_to_check IMPORTED_IMPLIB)
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if(CMAKE_BUILD_TYPE)
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list(APPEND props_to_check IMPORTED_IMPLIB_${CMAKE_BUILD_TYPE})
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endif()
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list(APPEND props_to_check IMPORTED_LOCATION)
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if(CMAKE_BUILD_TYPE)
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list(APPEND props_to_check IMPORTED_LOCATION_${CMAKE_BUILD_TYPE})
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endif()
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foreach (config_type ${CMAKE_CONFIGURATION_TYPES} RELEASE DEBUG RELWITHDEBINFO MINSIZEREL)
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list(APPEND props_to_check IMPORTED_IMPLIB_${config_type})
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list(APPEND props_to_check IMPORTED_LOCATION_${config_type})
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endforeach()
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foreach(prop_to_check ${props_to_check})
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if(NOT result)
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get_target_property(propvalue "${TARGET}" ${prop_to_check})
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if(propvalue AND EXISTS "${propvalue}")
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win32_implib_identify_dll(result "${propvalue}" NOTFATAL)
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endif()
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endif()
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endforeach()
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else()
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# 1. find the target library a file might be symbolic linking to
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# 2. find all other files in the same folder that symolic link to it
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# 3. sort all these files, and select the 1st item on Linux, and last on Macos
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set(location_properties IMPORTED_LOCATION)
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if(CMAKE_BUILD_TYPE)
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list(APPEND location_properties IMPORTED_LOCATION_${CMAKE_BUILD_TYPE})
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endif()
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foreach (config_type ${CMAKE_CONFIGURATION_TYPES} RELEASE DEBUG RELWITHDEBINFO MINSIZEREL)
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list(APPEND location_properties IMPORTED_LOCATION_${config_type})
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endforeach()
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if(APPLE)
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set(valid_shared_library_regex "\\.[0-9]+\\.dylib$")
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else()
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set(valid_shared_library_regex "\\.so\\.([0-9.]+)?[0-9]")
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endif()
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foreach(location_property ${location_properties})
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if(NOT result)
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get_target_property(library_path "${TARGET}" ${location_property})
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message(DEBUG "get_target_property(${TARGET} ${location_propert}) -> ${library_path}")
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if(EXISTS "${library_path}")
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get_filename_component(library_path "${library_path}" ABSOLUTE)
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while (IS_SYMLINK "${library_path}")
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read_absolute_symlink(library_path "${library_path}")
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endwhile()
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message(DEBUG "${TARGET} -> ${library_path}")
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get_filename_component(libdir "${library_path}" DIRECTORY)
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file(GLOB subfiles "${libdir}/*")
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set(similar_files "${library_path}")
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foreach(subfile ${subfiles})
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if(IS_SYMLINK "${subfile}")
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read_absolute_symlink(subfile_target "${subfile}")
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while(IS_SYMLINK "${subfile_target}")
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read_absolute_symlink(subfile_target "${subfile_target}")
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endwhile()
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get_filename_component(subfile_target "${subfile_target}" ABSOLUTE)
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if(subfile_target STREQUAL library_path AND subfile MATCHES "${valid_shared_library_regex}")
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list(APPEND similar_files "${subfile}")
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endif()
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endif()
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endforeach()
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list(SORT similar_files)
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message(DEBUG "files that are similar to \"${library_path}\"=${similar_files}")
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if(APPLE)
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list(REVERSE similar_files)
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endif()
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list(GET similar_files 0 item)
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get_filename_component(result "${item}" NAME)
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endif()
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endif()
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endforeach()
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endif()
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if(result)
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string(TOLOWER "${result}" result_lower)
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if(WIN32 OR OS2)
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if(NOT result_lower MATCHES ".*dll")
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message(FATAL_ERROR "\"${result}\" is not a .dll library")
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endif()
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elseif(APPLE)
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if(NOT result_lower MATCHES ".*dylib.*")
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message(FATAL_ERROR "\"${result}\" is not a .dylib shared library")
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endif()
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else()
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if(NOT result_lower MATCHES ".*so.*")
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message(FATAL_ERROR "\"${result}\" is not a .so shared library")
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endif()
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endif()
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else()
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get_target_property(target_type ${TARGET} TYPE)
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if(target_type MATCHES "SHARED_LIBRARY|MODULE_LIBRARY")
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# OK
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elseif(target_type MATCHES "STATIC_LIBRARY|OBJECT_LIBRARY|INTERFACE_LIBRARY|EXECUTABLE")
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message(SEND_ERROR "${TARGET} is not a shared library, but has type=${target_type}")
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else()
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message(WARNING "Unable to extract dynamic library from target=${TARGET}, type=${target_type}.")
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endif()
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# TARGET_SONAME_FILE is not allowed for DLL target platforms.
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if(WIN32)
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set(result "$<TARGET_FILE_NAME:${TARGET}>")
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else()
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set(result "$<TARGET_SONAME_FILE_NAME:${TARGET}>")
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endif()
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endif()
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set(${DEST} ${result} PARENT_SCOPE)
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endfunction()
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function(check_linker_supports_version_file VAR)
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SDL_detect_linker()
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if(CMAKE_C_COMPILER_LINKER_ID MATCHES "^(MSVC)$")
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