411 lines
15 KiB
CMake
411 lines
15 KiB
CMake
macro(add_to_alloptions _NEWNAME)
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list(APPEND ALLOPTIONS ${_NEWNAME})
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endmacro()
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macro(set_option _NAME _DESC)
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add_to_alloptions(${_NAME})
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if(${ARGC} EQUAL 3)
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set(_DEFLT ${ARGV2})
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else()
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set(_DEFLT OFF)
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endif()
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option(${_NAME} ${_DESC} ${_DEFLT})
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endmacro()
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macro(dep_option _NAME _DESC _DEFLT _DEPTEST _FAILDFLT)
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add_to_alloptions("${_NAME}")
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cmake_dependent_option("${_NAME}" "${_DESC}" "${_DEFLT}" "${_DEPTEST}" "${_FAILDFLT}")
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endmacro()
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macro(option_string _NAME _DESC _VALUE)
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add_to_alloptions(${_NAME})
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set(${_NAME} ${_VALUE} CACHE STRING "${_DESC}")
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set(HAVE_${_NAME} ${_VALUE})
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ENDMACRO()
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macro(message_bool_option _NAME _VALUE)
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set(_PAD "\t")
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if(${ARGC} EQUAL 3)
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set(_PAD ${ARGV2})
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endif()
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if(${_VALUE})
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message(STATUS " ${_NAME}:${_PAD}ON")
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else()
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message(STATUS " ${_NAME}:${_PAD}OFF")
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endif()
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endmacro()
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macro(message_tested_option _NAME)
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set(_REQVALUE ${${_NAME}})
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set(_PAD " ")
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if(${ARGC} EQUAL 2)
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set(_PAD ${ARGV1})
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endif()
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string(SUBSTRING "${_NAME}" 0 4 _NAMESTART)
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if(_NAMESTART STREQUAL "SDL_")
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string(SUBSTRING "${_NAME}" 4 -1 _STRIPPEDNAME)
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else()
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set(_STRIPPEDNAME "${_NAME}")
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endif()
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if(NOT HAVE_${_STRIPPEDNAME})
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set(HAVE_${_STRIPPEDNAME} OFF)
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elseif("${HAVE_${_STRIPPEDNAME}}" MATCHES "1|TRUE|YES|Y")
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set(HAVE_${_STRIPPEDNAME} ON)
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endif()
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message(STATUS " ${_NAME}${_PAD}(Wanted: ${_REQVALUE}): ${HAVE_${_STRIPPEDNAME}}")
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endmacro()
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function(find_stringlength_longest_item inList outLength)
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set(maxLength 0)
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foreach(item IN LISTS ${inList})
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string(LENGTH "${item}" slen)
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if(slen GREATER maxLength)
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set(maxLength ${slen})
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endif()
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endforeach()
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set("${outLength}" ${maxLength} PARENT_SCOPE)
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endfunction()
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function(message_dictlist inList)
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find_stringlength_longest_item(${inList} maxLength)
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foreach(name IN LISTS ${inList})
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# Get the padding
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string(LENGTH ${name} nameLength)
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math(EXPR padLength "(${maxLength} + 1) - ${nameLength}")
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string(RANDOM LENGTH ${padLength} ALPHABET " " padding)
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message_tested_option(${name} ${padding})
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endforeach()
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endfunction()
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if(APPLE)
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include(CheckOBJCSourceCompiles)
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enable_language(OBJC)
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endif()
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function(SDL_detect_linker)
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if(CMAKE_VERSION VERSION_LESS 3.29)
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if(NOT DEFINED SDL_CMAKE_C_COMPILER_LINKER_ID)
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execute_process(COMMAND ${CMAKE_LINKER} -v OUTPUT_VARIABLE LINKER_OUTPUT ERROR_VARIABLE LINKER_OUTPUT)
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string(REGEX REPLACE "[\r\n]" " " LINKER_OUTPUT "${LINKER_OUTPUT}")
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if(LINKER_OUTPUT MATCHES ".*Microsoft.*")
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set(linker MSVC)
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else()
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set(linker GNUlike)
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endif()
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message(STATUS "Linker identification: ${linker}")
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set(SDL_CMAKE_C_COMPILER_LINKER_ID "${linker}" CACHE STRING "Linker identification")
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mark_as_advanced(SDL_CMAKE_C_COMPILER_LINKER_ID)
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endif()
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set(CMAKE_C_COMPILER_LINKER_ID "${SDL_CMAKE_C_COMPILER_LINKER_ID}" PARENT_SCOPE)
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endif()
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endfunction()
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function(read_absolute_symlink DEST PATH)
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file(READ_SYMLINK "${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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set(LINKER_SUPPORTS_VERSION_SCRIPT FALSE)
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else()
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cmake_push_check_state(RESET)
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file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/dummy.sym" "n_0 {\n global:\n func;\n local: *;\n};\n")
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list(APPEND CMAKE_REQUIRED_LINK_OPTIONS "-Wl,--version-script=${CMAKE_CURRENT_BINARY_DIR}/dummy.sym")
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check_c_source_compiles("int func(void) {return 0;} int main(int argc,char*argv[]){(void)argc;(void)argv;return func();}" LINKER_SUPPORTS_VERSION_SCRIPT FAIL_REGEX "(unsupported|syntax error|unrecognized option)")
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cmake_pop_check_state()
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endif()
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set(${VAR} "${LINKER_SUPPORTS_VERSION_SCRIPT}" PARENT_SCOPE)
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endfunction()
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if(CMAKE_VERSION VERSION_LESS 3.18)
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function(check_linker_flag LANG FLAG VAR)
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cmake_push_check_state(RESET)
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list(APPEND CMAKE_REQUIRED_LINK_OPTIONS ${FLAG})
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if(LANG STREQUAL "C")
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include(CheckCSourceCompiles)
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check_c_source_compiles("int main(int argc,char*argv[]){(void)argc;(void)argv;return 0;}" ${VAR} FAIL_REGEX "(unsupported|syntax error)")
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elseif(LANG STREQUAL "CXX")
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include(CheckCXXSourceCompiles)
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check_cxx_source_compiles("int main(int argc,char*argv[]){(void)argc;(void)argv;return 0;}" ${VAR} FAIL_REGEX "(unsupported|syntax error)")
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else()
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message(FATAL_ERROR "Unsupported language: ${LANG}")
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endif()
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cmake_pop_check_state()
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endfunction()
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else()
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cmake_policy(SET CMP0057 NEW) # Support new if() IN_LIST operator. (used inside check_linker_flag, used in CMake 3.18)
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include(CheckLinkerFlag)
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endif()
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if(APPLE)
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check_language(OBJC)
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if(NOT CMAKE_OBJC_COMPILER)
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message(WARNING "Cannot find working OBJC compiler.")
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endif()
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endif()
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function(SDL_PrintSummary)
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##### Info output #####
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message(STATUS "")
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message(STATUS "SDL3 was configured with the following options:")
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message(STATUS "")
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message(STATUS "Platform: ${CMAKE_SYSTEM}")
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message(STATUS "64-bit: ${ARCH_64}")
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message(STATUS "Compiler: ${CMAKE_C_COMPILER}")
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message(STATUS "Revision: ${SDL_REVISION}")
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message(STATUS "Vendor: ${SDL_VENDOR_INFO}")
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message(STATUS "")
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message(STATUS "Subsystems:")
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find_stringlength_longest_item(SDL_SUBSYSTEMS maxLength)
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foreach(_SUB IN LISTS SDL_SUBSYSTEMS)
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string(LENGTH ${_SUB} _SUBLEN)
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math(EXPR _PADLEN "(${maxLength} + 1) - ${_SUBLEN}")
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string(RANDOM LENGTH ${_PADLEN} ALPHABET " " _PADDING)
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string(TOUPPER ${_SUB} _OPT)
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message_bool_option(${_SUB} SDL_${_OPT} ${_PADDING})
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endforeach()
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message(STATUS "")
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message(STATUS "Options:")
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list(SORT ALLOPTIONS)
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message_dictlist(ALLOPTIONS)
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message(STATUS "")
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message(STATUS " Build Shared Library: ${SDL_SHARED}")
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message(STATUS " Build Static Library: ${SDL_STATIC}")
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if(SDL_STATIC)
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message(STATUS " Build Static Library with Position Independent Code: ${SDL_STATIC_PIC}")
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endif()
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if(APPLE)
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message(STATUS " Build libraries as Apple Framework: ${SDL_FRAMEWORK}")
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endif()
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message(STATUS "")
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if(UNIX)
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message(STATUS "If something was not detected, although the libraries")
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message(STATUS "were installed, then make sure you have set the")
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message(STATUS "CMAKE_C_FLAGS and CMAKE_PREFIX_PATH CMake variables correctly.")
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message(STATUS "")
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endif()
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if(WARN_ABOUT_ARM_SIMD_ASM_MIT)
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message(STATUS "SDL is being built with ARM SIMD optimizations, which")
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message(STATUS "uses code licensed under the MIT license. If this is a")
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message(STATUS "problem, please disable that code by rerunning CMake with:")
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message(STATUS "")
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message(STATUS " -DSDL_ARMSIMD=OFF")
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message(STATUS "")
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endif()
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if(WARN_ABOUT_ARM_NEON_ASM_MIT)
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message(STATUS "SDL is being built with ARM NEON optimizations, which")
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message(STATUS "uses code licensed under the MIT license. If this is a")
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message(STATUS "problem, please disable that code by rerunning CMake with:")
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message(STATUS "")
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message(STATUS " -DSDL_ARMNEON=OFF")
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message(STATUS "")
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endif()
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endfunction()
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function(SDL_install_pdb TARGET DIRECTORY)
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get_property(type TARGET ${TARGET} PROPERTY TYPE)
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if(type MATCHES "^(SHARED_LIBRARY|EXECUTABLE)$")
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install(FILES $<TARGET_PDB_FILE:${TARGET}> DESTINATION "${DIRECTORY}" OPTIONAL)
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elseif(type STREQUAL "STATIC_LIBRARY")
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# FIXME: Use $<TARGET_COMPILE_PDB_FILE:${TARGET} once it becomes available (https://gitlab.kitware.com/cmake/cmake/-/issues/25244)
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if(CMAKE_GENERATOR MATCHES "^Visual Studio.*")
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install(CODE "file(INSTALL DESTINATION \"\${CMAKE_INSTALL_PREFIX}/${DIRECTORY}\" TYPE FILE OPTIONAL FILES \"${CMAKE_CURRENT_BINARY_DIR}/\${CMAKE_INSTALL_CONFIG_NAME}/${TARGET}.pdb\")")
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else()
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install(CODE "file(INSTALL DESTINATION \"\${CMAKE_INSTALL_PREFIX}/${DIRECTORY}\" TYPE FILE OPTIONAL FILES \"${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/${TARGET}.dir/${TARGET}.pdb\")")
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endif()
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endif()
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endfunction()
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