164 lines
4.7 KiB
CMake
164 lines
4.7 KiB
CMake
macro(add_to_alloptions _NEWNAME)
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list(APPEND ALLOPTIONS ${_NEWNAME})
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string(LENGTH ${_NEWNAME} _SLEN)
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if(${LONGESTOPTIONNAME} LESS ${_SLEN})
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set(LONGESTOPTIONNAME ${_SLEN})
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endif()
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endmacro()
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macro(set_option _NAME _DESC)
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add_to_alloptions(${_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} ${_VALUE})
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ENDMACRO()
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# Message Output
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macro(message_warn _TEXT)
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message(WARNING "${_TEXT}")
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endmacro()
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macro(message_error _TEXT)
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message(FATAL_ERROR "*** ERROR: ${_TEXT}")
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endmacro()
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macro(message_bool_option _NAME _VALUE)
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set(_PAD "\t")
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if(${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(listtostr LIST OUTPUT)
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if(${ARGC} EQUAL 3)
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# prefix for each element
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set(LPREFIX ${ARGV2})
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else()
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set(LPREFIX "")
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endif()
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# Do not use string(REPLACE ";" " ") here to avoid messing up list entries
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set(res)
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foreach(ITEM ${${LIST}})
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if(ITEM MATCHES "^SHELL:")
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string(SUBSTRING "${ITEM}" 6 -1 ITEM)
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endif()
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if(ITEM)
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set(res "${res} ${LPREFIX}${ITEM}")
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endif()
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endforeach()
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string(STRIP "${res}" res)
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set(${OUTPUT} "${res}" PARENT_SCOPE)
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endfunction()
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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} ${padding})
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endforeach()
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endfunction()
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if(CMAKE_VERSION VERSION_LESS 3.16.0 OR SDL3_SUBPROJECT)
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# - CMake versions <3.16 do not support the OBJC language
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# - When SDL is built as a subproject and when the main project does not enable OBJC,
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# CMake fails due to missing internal CMake variables (CMAKE_OBJC_COMPILE_OBJECT)
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# (reproduced with CMake 3.24.2)
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macro(CHECK_OBJC_SOURCE_COMPILES SOURCE VAR)
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set(PREV_REQUIRED_DEFS "${CMAKE_REQUIRED_DEFINITIONS}")
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set(CMAKE_REQUIRED_DEFINITIONS "-x objective-c ${PREV_REQUIRED_DEFS}")
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CHECK_C_SOURCE_COMPILES("${SOURCE}" ${VAR})
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set(CMAKE_REQUIRED_DEFINITIONS "${PREV_REQUIRED_DEFS}")
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endmacro()
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else()
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include(CheckOBJCSourceCompiles)
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if (APPLE)
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enable_language(OBJC)
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endif()
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endif()
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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()
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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 "warning")
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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 "warning")
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else()
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message(FATAL_ERROR "Unsupported language: ${LANG}")
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endif()
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cmake_pop_check_state()
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endfunction()
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else()
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cmake_policy(SET CMP0057 NEW) # Support new if() IN_LIST operator. (used inside check_linker_flag, used in CMake 3.18)
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include(CheckLinkerFlag)
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endif()
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if(APPLE)
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check_language(OBJC)
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if(NOT CMAKE_OBJC_COMPILER)
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message(WARNING "Cannot find working OBJC compiler.")
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endif()
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endif()
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if(CMAKE_VERSION VERSION_LESS 3.13.0)
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macro(target_link_directories _TARGET _SCOPE)
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link_directories(${ARGN})
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endmacro()
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endif()
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