update FindSDL2.cmake
This commit is contained in:
parent
21b4be3556
commit
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@ -1,249 +1,249 @@
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# Locate SDL2 library
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# This module defines
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# SDL2_LIBRARY, the name of the library to link against
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# SDL2_FOUND, if false, do not try to link to SDL2
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# SDL2_INCLUDE_DIR, where to find SDL.h
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# - Find SDL2
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# Find the SDL2 headers and libraries
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#
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# This module responds to the the flag:
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# SDL2_BUILDING_LIBRARY
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# If this is defined, then no SDL2_main will be linked in because
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# only applications need main().
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# Otherwise, it is assumed you are building an application and this
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# module will attempt to locate and set the the proper link flags
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# as part of the returned SDL2_LIBRARY variable.
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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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# Don't forget to include SDL2main.h and SDL2main.m your project for the
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# OS X framework based version. (Other versions link to -lSDL2main which
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# this module will try to find on your behalf.) Also for OS X, this
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# module will automatically add the -framework Cocoa on your behalf.
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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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#
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# Additional Note: If you see an empty SDL2_LIBRARY_TEMP in your configuration
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# and no SDL2_LIBRARY, it means CMake did not find your SDL2 library
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# (SDL2.dll, libsdl2.so, SDL2.framework, etc).
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# Set SDL2_LIBRARY_TEMP to point to your SDL2 library, and configure again.
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# Similarly, if you see an empty SDL2MAIN_LIBRARY, you should set this value
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# as appropriate. These values are used to generate the final SDL2_LIBRARY
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# variable, but when these values are unset, SDL2_LIBRARY does not get created.
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#
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#
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# $SDL2 is an environment variable that would
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# correspond to the ./configure --prefix=$SDL2
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# used in building SDL2.
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# l.e.galup 9-20-02
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#
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# Modified by Eric Wing.
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# Added code to assist with automated building by using environmental variables
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# and providing a more controlled/consistent search behavior.
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# Added new modifications to recognize OS X frameworks and
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# additional Unix paths (FreeBSD, etc).
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# Also corrected the header search path to follow "proper" SDL2 guidelines.
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# Added a search for SDL2main which is needed by some platforms.
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# Added a search for threads which is needed by some platforms.
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# Added needed compile switches for MinGW.
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#
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# On OSX, this will prefer the Framework version (if found) over others.
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# People will have to manually change the cache values of
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# SDL2_LIBRARY to override this selection or set the CMake environment
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# CMAKE_INCLUDE_PATH to modify the search paths.
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#
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# Note that the header path has changed from SDL2/SDL.h to just SDL.h
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# This needed to change because "proper" SDL2 convention
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# is #include "SDL.h", not <SDL2/SDL.h>. This is done for portability
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# reasons because not all systems place things in SDL2/ (see FreeBSD).
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#
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# Ported by Johnny Patterson. This is a literal port for SDL2 of the FindSDL.cmake
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# module with the minor edit of changing "SDL" to "SDL2" where necessary. This
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# was not created for redistribution, and exists temporarily pending official
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# SDL2 CMake modules.
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#
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# Note that on windows this will only search for the 32bit libraries, to search
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# for 64bit change x86/i686-w64 to x64/x86_64-w64
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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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#=============================================================================
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# Copyright 2003-2009 Kitware, Inc.
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#
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# CMake - Cross Platform Makefile Generator
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# Copyright 2000-2014 Kitware, Inc.
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# Copyright 2000-2011 Insight Software Consortium
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# * Neither the names of Kitware, Inc., the Insight Software Consortium,
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# nor the names of their contributors may be used to endorse or promote
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# products derived from this software without specific prior written
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# permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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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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FIND_PATH(SDL2_INCLUDE_DIR SDL.h
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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 ${SDL2PC_LIBRARY_DIRS})
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endif()
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endif()
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include(FindPackageHandleStandardArgs)
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find_library(SDL2_LIBRARY
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NAMES
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SDL2
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HINTS
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$ENV{SDL2}
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PATH_SUFFIXES include/SDL2 include SDL2
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i686-w64-mingw32/include/SDL2
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x86_64-w64-mingw32/include/SDL2
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${SDL2_LIB_HINTS}
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PATHS
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~/Library/Frameworks
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/Library/Frameworks
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/usr/local/include/SDL2
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/usr/include/SDL2
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/sw # Fink
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/opt/local # DarwinPorts
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/opt/csw # Blastwave
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/opt
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)
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${SDL2_ROOT_DIR}
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ENV SDL2DIR
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PATH_SUFFIXES lib SDL2 ${SDL2_LIB_PATH_SUFFIX})
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# Lookup the 64 bit libs on x64
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IF(CMAKE_SIZEOF_VOID_P EQUAL 8)
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FIND_LIBRARY(SDL2_LIBRARY_TEMP SDL2
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set(_sdl2_framework FALSE)
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# Some special-casing if we've found/been given a framework.
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# Handles whether we're given the library inside the framework or the framework itself.
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if(APPLE AND "${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 ${CMAKE_MATCH_1})
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# If we found a framework, do a search for the header ahead of time that will be more likely to get the framework header.
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find_path(SDL2_INCLUDE_DIR
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NAMES
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SDL_haptic.h # this file was introduced with SDL2
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HINTS
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$ENV{SDL2}
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PATH_SUFFIXES lib64 lib
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lib/x64
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x86_64-w64-mingw32/lib
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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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/sw
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/opt/local
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/opt/csw
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/opt
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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 "${SDL2_INCLUDE_DIR}"
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)
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# On 32bit build find the 32bit libs
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ELSE(CMAKE_SIZEOF_VOID_P EQUAL 8)
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FIND_LIBRARY(SDL2_LIBRARY_TEMP SDL2
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HINTS
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$ENV{SDL2}
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PATH_SUFFIXES lib
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lib/x86
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i686-w64-mingw32/lib
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PATHS
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/sw
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/opt/local
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/opt/csw
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/opt
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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(CMAKE_SIZEOF_VOID_P EQUAL 8)
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endif()
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IF(NOT SDL2_BUILDING_LIBRARY)
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IF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework")
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# Non-OS X framework versions expect you to also dynamically link to
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# SDL2main. This is mainly for Windows and OS X. Other (Unix) platforms
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# seem to provide SDL2main for compatibility even though they don't
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# necessarily need it.
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# Lookup the 64 bit libs on x64
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IF(CMAKE_SIZEOF_VOID_P EQUAL 8)
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FIND_LIBRARY(SDL2MAIN_LIBRARY
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NAMES SDL2main
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HINTS
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$ENV{SDL2}
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PATH_SUFFIXES lib64 lib
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lib/x64
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x86_64-w64-mingw32/lib
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PATHS
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/sw
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/opt/local
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/opt/csw
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/opt
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)
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# On 32bit build find the 32bit libs
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ELSE(CMAKE_SIZEOF_VOID_P EQUAL 8)
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FIND_LIBRARY(SDL2MAIN_LIBRARY
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NAMES SDL2main
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HINTS
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$ENV{SDL2}
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PATH_SUFFIXES lib
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lib/x86
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i686-w64-mingw32/lib
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PATHS
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/sw
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/opt/local
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/opt/csw
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/opt
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)
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ENDIF(CMAKE_SIZEOF_VOID_P EQUAL 8)
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ENDIF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework")
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ENDIF(NOT SDL2_BUILDING_LIBRARY)
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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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# SDL2 may require threads on your system.
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# The Apple build may not need an explicit flag because one of the
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# frameworks may already provide it.
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# But for non-OSX systems, I will use the CMake Threads package.
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IF(NOT APPLE)
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FIND_PACKAGE(Threads)
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ENDIF(NOT APPLE)
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# MinGW needs an additional library, mwindows
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# It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -lmwindows
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# (Actually on second look, I think it only needs one of the m* libraries.)
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IF(MINGW)
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SET(MINGW32_LIBRARY mingw32 CACHE STRING "mwindows for MinGW")
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ENDIF(MINGW)
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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} ${SDL2MAIN_LIBRARIES})
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endif()
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endif()
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set_target_properties(SDL2::SDL2main
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PROPERTIES
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||||
INTERFACE_COMPILE_DEFINITIONS "main=SDL_main")
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||||
endif()
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||||
set_target_properties(SDL2::SDL2main
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PROPERTIES
|
||||
INTERFACE_LINK_LIBRARIES "${SDL2MAIN_LIBRARIES}")
|
||||
endif()
|
||||
mark_as_advanced(SDL2_ROOT_DIR)
|
||||
endif()
|
||||
|
||||
SET(SDL2_FOUND "NO")
|
||||
IF(SDL2_LIBRARY_TEMP)
|
||||
# For SDL2main
|
||||
IF(NOT SDL2_BUILDING_LIBRARY)
|
||||
IF(SDL2MAIN_LIBRARY)
|
||||
SET(SDL2_LIBRARY_TEMP ${SDL2MAIN_LIBRARY} ${SDL2_LIBRARY_TEMP})
|
||||
ENDIF(SDL2MAIN_LIBRARY)
|
||||
ENDIF(NOT SDL2_BUILDING_LIBRARY)
|
||||
|
||||
# For OS X, SDL2 uses Cocoa as a backend so it must link to Cocoa.
|
||||
# CMake doesn't display the -framework Cocoa string in the UI even
|
||||
# though it actually is there if I modify a pre-used variable.
|
||||
# I think it has something to do with the CACHE STRING.
|
||||
# So I use a temporary variable until the end so I can set the
|
||||
# "real" variable in one-shot.
|
||||
IF(APPLE)
|
||||
SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} "-framework Cocoa")
|
||||
ENDIF(APPLE)
|
||||
|
||||
# For threads, as mentioned Apple doesn't need this.
|
||||
# In fact, there seems to be a problem if I used the Threads package
|
||||
# and try using this line, so I'm just skipping it entirely for OS X.
|
||||
IF(NOT APPLE)
|
||||
SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} ${CMAKE_THREAD_LIBS_INIT})
|
||||
ENDIF(NOT APPLE)
|
||||
|
||||
# For MinGW library
|
||||
IF(MINGW)
|
||||
SET(SDL2_LIBRARY_TEMP ${MINGW32_LIBRARY} ${SDL2_LIBRARY_TEMP})
|
||||
ENDIF(MINGW)
|
||||
|
||||
# Set the final string here so the GUI reflects the final state.
|
||||
SET(SDL2_LIBRARY ${SDL2_LIBRARY_TEMP} CACHE STRING "Where the SDL2 Library can be found")
|
||||
# Set the temp variable to INTERNAL so it is not seen in the CMake GUI
|
||||
SET(SDL2_LIBRARY_TEMP "${SDL2_LIBRARY_TEMP}" CACHE INTERNAL "")
|
||||
|
||||
SET(SDL2_FOUND "YES")
|
||||
ENDIF(SDL2_LIBRARY_TEMP)
|
||||
|
||||
INCLUDE(FindPackageHandleStandardArgs)
|
||||
|
||||
FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2 REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR)
|
||||
mark_as_advanced(SDL2_LIBRARY
|
||||
SDL2_RUNTIME_LIBRARY
|
||||
SDL2_INCLUDE_DIR
|
||||
SDL2_SDLMAIN_LIBRARY
|
||||
SDL2_COCOA_LIBRARY
|
||||
SDL2_MINGW_LIBRARY
|
||||
SDL2_MWINDOWS_LIBRARY)
|
||||
Reference in a new issue