CMake: Remove custom SDL2 find script
It doesn't properly set the include paths for macos framework builds of SDL, and SDL has had its own find script since 2.0.10
This commit is contained in:
TellowKrinkle
parent
38b8547055
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0d4a5274f1
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# - Find SDL2
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# Find the SDL2 headers and libraries
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#
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# SDL2::SDL2 - Imported target to use for building a library
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# SDL2::SDL2main - Imported interface target to use if you want SDL and SDLmain.
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# SDL2_FOUND - True if SDL2 was found.
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# SDL2_DYNAMIC - If we found a DLL version of SDL (meaning you might want to copy a DLL from SDL2::SDL2)
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#
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# Original Author:
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# 2015 Ryan Pavlik <ryan.pavlik@gmail.com> <abiryan@ryand.net>
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#
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# Copyright Sensics, Inc. 2015.
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# Distributed under the Boost Software License, Version 1.0.
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# (See accompanying file LICENSE_1_0.txt or copy at
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# http://www.boost.org/LICENSE_1_0.txt)
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# Set up architectures (for windows) and prefixes (for mingw builds)
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if(WIN32)
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if(MINGW)
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include(MinGWSearchPathExtras OPTIONAL)
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if(MINGWSEARCH_TARGET_TRIPLE)
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set(SDL2_PREFIX ${MINGWSEARCH_TARGET_TRIPLE})
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endif()
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endif()
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(SDL2_LIB_PATH_SUFFIX lib/x64)
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if(NOT MSVC AND NOT SDL2_PREFIX)
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set(SDL2_PREFIX x86_64-w64-mingw32)
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endif()
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else()
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set(SDL2_LIB_PATH_SUFFIX lib/x86)
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if(NOT MSVC AND NOT SDL2_PREFIX)
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set(SDL2_PREFIX i686-w64-mingw32)
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endif()
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endif()
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endif()
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if(SDL2_PREFIX)
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set(SDL2_ORIGPREFIXPATH ${CMAKE_PREFIX_PATH})
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if(SDL2_ROOT_DIR)
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list(APPEND CMAKE_PREFIX_PATH "${SDL2_ROOT_DIR}")
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endif()
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if(CMAKE_PREFIX_PATH)
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foreach(_prefix ${CMAKE_PREFIX_PATH})
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list(APPEND CMAKE_PREFIX_PATH "${_prefix}/${SDL2_PREFIX}")
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endforeach()
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endif()
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if(MINGWSEARCH_PREFIXES)
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list(APPEND CMAKE_PREFIX_PATH ${MINGWSEARCH_PREFIXES})
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endif()
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endif()
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# Invoke pkgconfig for hints
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find_package(PkgConfig QUIET)
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set(SDL2_INCLUDE_HINTS)
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set(SDL2_LIB_HINTS)
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if(PKG_CONFIG_FOUND)
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pkg_search_module(SDL2PC QUIET sdl2)
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if(SDL2PC_INCLUDE_DIRS)
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set(SDL2_INCLUDE_HINTS ${SDL2PC_INCLUDE_DIRS})
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endif()
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if(SDL2PC_LIBRARY_DIRS)
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set(SDL2_LIB_HINTS ${SDL2PC_LIBRARY_DIRS})
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endif()
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endif()
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include(FindPackageHandleStandardArgs)
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find_library(SDL2_LIBRARY
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NAMES
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SDL2
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HINTS
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${SDL2_LIB_HINTS}
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PATHS
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${SDL2_ROOT_DIR}
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ENV SDL2DIR
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PATH_SUFFIXES lib SDL2 ${SDL2_LIB_PATH_SUFFIX})
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set(_sdl2_framework FALSE)
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# Some special-casing if we've found/been given a framework.
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# Handles whether we're given the library inside the framework or the framework itself.
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if(APPLE AND "${SDL2_LIBRARY}" MATCHES "(/[^/]+)*.framework(/.*)?$")
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set(_sdl2_framework TRUE)
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set(SDL2_FRAMEWORK "${SDL2_LIBRARY}")
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# Move up in the directory tree as required to get the framework directory.
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while("${SDL2_FRAMEWORK}" MATCHES "(/[^/]+)*.framework(/.*)$" AND NOT "${SDL2_FRAMEWORK}" MATCHES "(/[^/]+)*.framework$")
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get_filename_component(SDL2_FRAMEWORK "${SDL2_FRAMEWORK}" DIRECTORY)
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endwhile()
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if("${SDL2_FRAMEWORK}" MATCHES "(/[^/]+)*.framework$")
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set(SDL2_FRAMEWORK_NAME ${CMAKE_MATCH_1})
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# If we found a framework, do a search for the header ahead of time that will be more likely to get the framework header.
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find_path(SDL2_INCLUDE_DIR
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NAMES
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SDL_haptic.h # this file was introduced with SDL2
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HINTS
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"${SDL2_FRAMEWORK}/Headers/")
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else()
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# For some reason we couldn't get the framework directory itself.
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# Shouldn't happen, but might if something is weird.
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unset(SDL2_FRAMEWORK)
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endif()
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endif()
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find_path(SDL2_INCLUDE_DIR
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NAMES
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SDL_haptic.h # this file was introduced with SDL2
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HINTS
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${SDL2_INCLUDE_HINTS}
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PATHS
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${SDL2_ROOT_DIR}
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ENV SDL2DIR
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PATH_SUFFIXES include include/sdl2 include/SDL2 SDL2)
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if(WIN32 AND SDL2_LIBRARY)
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find_file(SDL2_RUNTIME_LIBRARY
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NAMES
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SDL2.dll
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libSDL2.dll
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HINTS
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${SDL2_LIB_HINTS}
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PATHS
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${SDL2_ROOT_DIR}
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ENV SDL2DIR
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PATH_SUFFIXES bin lib ${SDL2_LIB_PATH_SUFFIX})
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endif()
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if(WIN32 OR ANDROID OR IOS OR (APPLE AND NOT _sdl2_framework))
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set(SDL2_EXTRA_REQUIRED SDL2_SDLMAIN_LIBRARY)
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find_library(SDL2_SDLMAIN_LIBRARY
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NAMES
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SDL2main
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PATHS
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${SDL2_ROOT_DIR}
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ENV SDL2DIR
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PATH_SUFFIXES lib ${SDL2_LIB_PATH_SUFFIX})
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endif()
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if(MINGW AND NOT SDL2PC_FOUND)
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find_library(SDL2_MINGW_LIBRARY mingw32)
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find_library(SDL2_MWINDOWS_LIBRARY mwindows)
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endif()
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if(SDL2_PREFIX)
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# Restore things the way they used to be.
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set(CMAKE_PREFIX_PATH ${SDL2_ORIGPREFIXPATH})
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endif()
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# handle the QUIETLY and REQUIRED arguments and set QUATLIB_FOUND to TRUE if
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# all listed variables are TRUE
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(SDL2
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DEFAULT_MSG
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SDL2_LIBRARY
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SDL2_INCLUDE_DIR
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${SDL2_EXTRA_REQUIRED})
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if(SDL2_FOUND)
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if(NOT TARGET SDL2::SDL2)
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# Create SDL2::SDL2
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if(WIN32 AND SDL2_RUNTIME_LIBRARY)
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set(SDL2_DYNAMIC TRUE)
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add_library(SDL2::SDL2 SHARED IMPORTED)
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set_target_properties(SDL2::SDL2
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PROPERTIES
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IMPORTED_IMPLIB "${SDL2_LIBRARY}"
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IMPORTED_LOCATION "${SDL2_RUNTIME_LIBRARY}"
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INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}"
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)
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else()
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add_library(SDL2::SDL2 UNKNOWN IMPORTED)
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if(SDL2_FRAMEWORK AND SDL2_FRAMEWORK_NAME)
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# Handle the case that SDL2 is a framework and we were able to decompose it above.
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set_target_properties(SDL2::SDL2 PROPERTIES
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IMPORTED_LOCATION "${SDL2_FRAMEWORK}/${SDL2_FRAMEWORK_NAME}")
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elseif(_sdl2_framework AND SDL2_LIBRARY MATCHES "(/[^/]+)*.framework$")
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# Handle the case that SDL2 is a framework and SDL_LIBRARY is just the framework itself.
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# This takes the basename of the framework, without the extension,
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# and sets it (as a child of the framework) as the imported location for the target.
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# This is the library symlink inside of the framework.
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set_target_properties(SDL2::SDL2 PROPERTIES
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IMPORTED_LOCATION "${SDL2_LIBRARY}/${CMAKE_MATCH_1}")
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else()
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# Handle non-frameworks (including non-Mac), as well as the case that we're given the library inside of the framework
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set_target_properties(SDL2::SDL2 PROPERTIES
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IMPORTED_LOCATION "${SDL2_LIBRARY}")
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endif()
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set_target_properties(SDL2::SDL2
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PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}"
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)
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endif()
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if(APPLE)
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# Need Cocoa here, is always a framework
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find_library(SDL2_COCOA_LIBRARY Cocoa)
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list(APPEND SDL2_EXTRA_REQUIRED SDL2_COCOA_LIBRARY)
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if(SDL2_COCOA_LIBRARY)
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set_target_properties(SDL2::SDL2 PROPERTIES
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IMPORTED_LINK_INTERFACE_LIBRARIES ${SDL2_COCOA_LIBRARY})
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endif()
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endif()
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# Compute what to do with SDL2main
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set(SDL2MAIN_LIBRARIES SDL2::SDL2)
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add_library(SDL2::SDL2main INTERFACE IMPORTED)
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if(SDL2_SDLMAIN_LIBRARY)
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add_library(SDL2::SDL2main_real STATIC IMPORTED)
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set_target_properties(SDL2::SDL2main_real
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PROPERTIES
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IMPORTED_LOCATION "${SDL2_SDLMAIN_LIBRARY}")
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set(SDL2MAIN_LIBRARIES SDL2::SDL2main_real ${SDL2MAIN_LIBRARIES})
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endif()
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if(MINGW)
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# MinGW requires some additional libraries to appear earlier in the link line.
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if(SDL2PC_LIBRARIES)
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# Use pkgconfig-suggested extra libraries if available.
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list(REMOVE_ITEM SDL2PC_LIBRARIES SDL2main SDL2)
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set(SDL2MAIN_LIBRARIES ${SDL2PC_LIBRARIES} ${SDL2MAIN_LIBRARIES})
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else()
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# fall back to extra libraries specified in pkg-config in
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# an official binary distro of SDL2 for MinGW I downloaded
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if(SDL2_MINGW_LIBRARY)
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set(SDL2MAIN_LIBRARIES ${SDL2_MINGW_LIBRARY} ${SDL2MAIN_LIBRARIES})
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endif()
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if(SDL2_MWINDOWS_LIBRARY)
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set(SDL2MAIN_LIBRARIES ${SDL2_MWINDOWS_LIBRARY} ${SDL2MAIN_LIBRARIES})
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endif()
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endif()
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set_target_properties(SDL2::SDL2main
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PROPERTIES
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INTERFACE_COMPILE_DEFINITIONS "main=SDL_main")
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endif()
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set_target_properties(SDL2::SDL2main
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PROPERTIES
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INTERFACE_LINK_LIBRARIES "${SDL2MAIN_LIBRARIES}")
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endif()
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mark_as_advanced(SDL2_ROOT_DIR)
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endif()
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mark_as_advanced(SDL2_LIBRARY
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SDL2_RUNTIME_LIBRARY
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SDL2_INCLUDE_DIR
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SDL2_SDLMAIN_LIBRARY
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SDL2_COCOA_LIBRARY
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SDL2_MINGW_LIBRARY
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SDL2_MWINDOWS_LIBRARY)
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