SDL/cmake/macros.cmake
2022-11-03 15:03:47 +01:00

125 lines
3.3 KiB
CMake

macro(ADD_TO_ALLOPTIONS _NEWNAME)
list(APPEND ALLOPTIONS ${_NEWNAME})
string(LENGTH ${_NEWNAME} _SLEN)
if(${LONGESTOPTIONNAME} LESS ${_SLEN})
set(LONGESTOPTIONNAME ${_SLEN})
endif()
endmacro()
macro(SET_OPTION _NAME _DESC)
add_to_alloptions(${_NAME})
if(${ARGC} EQUAL 3)
set(_DEFLT ${ARGV2})
else()
set(_DEFLT OFF)
endif()
option(${_NAME} ${_DESC} ${_DEFLT})
endmacro()
macro(DEP_OPTION _NAME _DESC _DEFLT _DEPTEST _FAILDFLT)
add_to_alloptions("${_NAME}")
cmake_dependent_option("${_NAME}" "${_DESC}" "${_DEFLT}" "${_DEPTEST}" "${_FAILDFLT}")
endmacro()
macro(OPTION_STRING _NAME _DESC _VALUE)
add_to_alloptions(${_NAME})
set(${_NAME} ${_VALUE} CACHE STRING "${_DESC}")
set(HAVE_${_NAME} ${_VALUE})
ENDMACRO()
# Message Output
macro(MESSAGE_WARN _TEXT)
message(STATUS "*** WARNING: ${_TEXT}")
endmacro()
macro(MESSAGE_ERROR _TEXT)
message(FATAL_ERROR "*** ERROR: ${_TEXT}")
endmacro()
macro(MESSAGE_BOOL_OPTION _NAME _VALUE)
if(${_VALUE})
message(STATUS " ${_NAME}:\tON")
else()
message(STATUS " ${_NAME}:\tOFF")
endif()
endmacro()
macro(MESSAGE_TESTED_OPTION _NAME)
set(_REQVALUE ${${_NAME}})
set(_PAD " ")
if(${ARGC} EQUAL 2)
set(_PAD ${ARGV1})
endif()
string(SUBSTRING "${_NAME}" 0 4 _NAMESTART)
if(_NAMESTART STREQUAL "SDL_")
string(SUBSTRING "${_NAME}" 4 -1 _STRIPPEDNAME)
else()
set(_STRIPPEDNAME "${_NAME}")
endif()
if(NOT HAVE_${_STRIPPEDNAME})
set(HAVE_${_STRIPPEDNAME} OFF)
elseif("${HAVE_${_STRIPPEDNAME}}" MATCHES "1|TRUE|YES|Y")
set(HAVE_${_STRIPPEDNAME} ON)
endif()
message(STATUS " ${_NAME}${_PAD}(Wanted: ${_REQVALUE}): ${HAVE_${_STRIPPEDNAME}}")
endmacro()
macro(LISTTOSTR _LIST _OUTPUT)
if(${ARGC} EQUAL 3)
# prefix for each element
set(_LPREFIX ${ARGV2})
else()
set(_LPREFIX "")
endif()
# Do not use string(REPLACE ";" " ") here to avoid messing up list
# entries
foreach(_ITEM ${${_LIST}})
set(${_OUTPUT} "${${_OUTPUT}} ${_LPREFIX}${_ITEM}")
endforeach()
endmacro()
macro(LISTTOSTRREV _LIST _OUTPUT)
if(${ARGC} EQUAL 3)
# prefix for each element
set(_LPREFIX ${ARGV2})
else()
set(_LPREFIX "")
endif()
# Do not use string(REPLACE ";" " ") here to avoid messing up list
# entries
foreach(_ITEM ${${_LIST}})
set(${_OUTPUT} "${_LPREFIX}${_ITEM} ${${_OUTPUT}}")
endforeach()
endmacro()
if(CMAKE_VERSION VERSION_LESS 3.16.0 OR SDL2_SUBPROJECT)
# - CMake versions <3.16 do not support the OBJC language
# - When SDL is built as a subproject and when the main project does not enable OBJC,
# CMake fails due to missing internal CMake variables (CMAKE_OBJC_COMPILE_OBJECT)
# (reproduced with CMake 3.24.2)
macro(CHECK_OBJC_SOURCE_COMPILES SOURCE VAR)
set(PREV_REQUIRED_DEFS "${CMAKE_REQUIRED_DEFINITIONS}")
set(CMAKE_REQUIRED_DEFINITIONS "-x objective-c ${PREV_REQUIRED_DEFS}")
CHECK_C_SOURCE_COMPILES("${SOURCE}" ${VAR})
set(CMAKE_REQUIRED_DEFINITIONS "${PREV_REQUIRED_DEFS}")
endmacro()
else()
include(CheckOBJCSourceCompiles)
if (APPLE)
enable_language(OBJC)
endif()
endif()
if(APPLE)
check_language(OBJC)
if(NOT CMAKE_OBJC_COMPILER)
message(WARNING "Cannot find working OBJC compiler.")
endif()
endif()
if(CMAKE_VERSION VERSION_LESS 3.13.0)
macro(target_link_directories _TARGET _SCOPE)
link_directories(${ARGN})
endmacro()
endif()