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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,196 +1,24 @@ | ||
| # Locate SDL2 library | ||
| # This module defines | ||
| # SDL2_LIBRARY, the name of the library to link against | ||
| # SDL2_FOUND, if false, do not try to link to SDL2 | ||
| # SDL2_INCLUDE_DIR, where to find SDL.h | ||
| # SDL2_VERSION_STRING the version found | ||
| # | ||
| # This module responds to the the flag: | ||
| # SDL2_BUILDING_LIBRARY | ||
| # If this is defined, then no SDL2_main will be linked in because | ||
| # only applications need main(). | ||
| # Otherwise, it is assumed you are building an application and this | ||
| # module will attempt to locate and set the the proper link flags | ||
| # as part of the returned SDL2_LIBRARY variable. | ||
| # | ||
| # Don't forget to include SDL2main.h and SDL2main.m your project for the | ||
| # OS X framework based version. (Other versions link to -lSDL2main which | ||
| # this module will try to find on your behalf.) Also for OS X, this | ||
| # module will automatically add the -framework Cocoa on your behalf. | ||
| # | ||
| # | ||
| # Additional Note: If you see an empty SDL2_LIBRARY_TEMP in your configuration | ||
| # and no SDL2_LIBRARY, it means CMake did not find your SDL2 library | ||
| # (SDL2.dll, libsdl2.so, SDL2.framework, etc). | ||
| # Set SDL2_LIBRARY_TEMP to point to your SDL2 library, and configure again. | ||
| # Similarly, if you see an empty SDL2MAIN_LIBRARY, you should set this value | ||
| # as appropriate. These values are used to generate the final SDL2_LIBRARY | ||
| # variable, but when these values are unset, SDL2_LIBRARY does not get created. | ||
| # | ||
| # | ||
| # $SDL2DIR is an environment variable that would | ||
| # correspond to the ./configure --prefix=$SDL2DIR | ||
| # used in building SDL2. | ||
| # l.e.galup 9-20-02 | ||
| # | ||
| # Modified by Eric Wing. | ||
| # Added code to assist with automated building by using environmental variables | ||
| # and providing a more controlled/consistent search behavior. | ||
| # Added new modifications to recognize OS X frameworks and | ||
| # additional Unix paths (FreeBSD, etc). | ||
| # Also corrected the header search path to follow "proper" SDL2 guidelines. | ||
| # Added a search for SDL2main which is needed by some platforms. | ||
| # Added a search for threads which is needed by some platforms. | ||
| # Added needed compile switches for MinGW. | ||
| # | ||
| # On OSX, this will prefer the Framework version (if found) over others. | ||
| # People will have to manually change the cache values of | ||
| # SDL2_LIBRARY to override this selection or set the CMake environment | ||
| # CMAKE_INCLUDE_PATH to modify the search paths. | ||
| # | ||
| # Note that the header path has changed from SDL2/SDL.h to just SDL.h | ||
| # This needed to change because "proper" SDL2 convention | ||
| # is #include "SDL.h", not <SDL2/SDL.h>. This is done for portability | ||
| # reasons because not all systems place things in SDL2/ (see FreeBSD). | ||
| # | ||
| # Ported by Johnny Patterson. This is a literal port for SDL2 of the FindSDL.cmake | ||
| # module with the minor edit of changing "SDL" to "SDL2" where necessary. This | ||
| # was not created for redistribution, and exists temporarily pending official | ||
| # SDL2 CMake modules. | ||
| # The version of SDL we have is too old | ||
| # and doesn't provide a proper config file. | ||
| # We need to create imported targets for the config | ||
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| find_package(SDL2 QUIET CONFIG) | ||
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| #============================================================================= | ||
| # Copyright 2003-2009 Kitware, Inc. | ||
| # | ||
| # Distributed under the OSI-approved BSD License (the "License"); | ||
| # see accompanying file Copyright.txt for details. | ||
| # | ||
| # This software is distributed WITHOUT ANY WARRANTY; without even the | ||
| # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
| # See the License for more information. | ||
| #============================================================================= | ||
| # (To distribute this file outside of CMake, substitute the full | ||
| # License text for the above reference.) | ||
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| FIND_PATH(SDL2_INCLUDE_DIR SDL.h | ||
| HINTS | ||
| $ENV{SDL2DIR} | ||
| PATH_SUFFIXES include/SDL2 include | ||
| PATHS | ||
| ~/Library/Frameworks | ||
| /Library/Frameworks | ||
| /usr/local/include/SDL2 | ||
| /usr/include/SDL2 | ||
| /sw # Fink | ||
| /opt/local # DarwinPorts | ||
| /opt/csw # Blastwave | ||
| /opt | ||
| ) | ||
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|
||
| if(SDL2_INCLUDE_DIR AND EXISTS "${SDL2_INCLUDE_DIR}/SDL_version.h") | ||
| file(STRINGS "${SDL2_INCLUDE_DIR}/SDL_version.h" SDL2_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_MAJOR_VERSION[ \t]+[0-9]+$") | ||
| file(STRINGS "${SDL2_INCLUDE_DIR}/SDL_version.h" SDL2_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_MINOR_VERSION[ \t]+[0-9]+$") | ||
| file(STRINGS "${SDL2_INCLUDE_DIR}/SDL_version.h" SDL2_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_PATCHLEVEL[ \t]+[0-9]+$") | ||
| string(REGEX REPLACE "^#define[ \t]+SDL_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_VERSION_MAJOR "${SDL2_VERSION_MAJOR_LINE}") | ||
| string(REGEX REPLACE "^#define[ \t]+SDL_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_VERSION_MINOR "${SDL2_VERSION_MINOR_LINE}") | ||
| string(REGEX REPLACE "^#define[ \t]+SDL_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL_VERSION_PATCH "${SDL2_VERSION_PATCH_LINE}") | ||
| set(SDL2_VERSION_STRING ${SDL_VERSION_MAJOR}.${SDL_VERSION_MINOR}.${SDL_VERSION_PATCH}) | ||
| unset(SDL2_VERSION_MAJOR_LINE) | ||
| unset(SDL2_VERSION_MINOR_LINE) | ||
| unset(SDL2_VERSION_PATCH_LINE) | ||
| unset(SDL2_VERSION_MAJOR) | ||
| unset(SDL2_VERSION_MINOR) | ||
| unset(SDL2_VERSION_PATCH) | ||
| endif() | ||
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| FIND_LIBRARY(SDL2_LIBRARY_TEMP | ||
| NAMES SDL2 | ||
| HINTS | ||
| $ENV{SDL2DIR} | ||
| PATH_SUFFIXES lib64 lib | ||
| PATHS | ||
| /sw | ||
| /opt/local | ||
| /opt/csw | ||
| /opt | ||
| find_library(SDL2_LIBRARY | ||
| NAMES | ||
| SDL2 | ||
| PATHS | ||
| ${SDL2_LIBDIR} | ||
| ) | ||
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| IF(NOT SDL2_BUILDING_LIBRARY) | ||
| IF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework") | ||
| # Non-OS X framework versions expect you to also dynamically link to | ||
| # SDL2main. This is mainly for Windows and OS X. Other (Unix) platforms | ||
| # seem to provide SDL2main for compatibility even though they don't | ||
| # necessarily need it. | ||
| FIND_LIBRARY(SDL2MAIN_LIBRARY | ||
| NAMES SDL2main | ||
| HINTS | ||
| $ENV{SDL2DIR} | ||
| PATH_SUFFIXES lib64 lib | ||
| PATHS | ||
| /sw | ||
| /opt/local | ||
| /opt/csw | ||
| /opt | ||
| ) | ||
| ENDIF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework") | ||
| ENDIF(NOT SDL2_BUILDING_LIBRARY) | ||
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| # SDL2 may require threads on your system. | ||
| # The Apple build may not need an explicit flag because one of the | ||
| # frameworks may already provide it. | ||
| # But for non-OSX systems, I will use the CMake Threads package. | ||
| IF(NOT APPLE) | ||
| FIND_PACKAGE(Threads) | ||
| ENDIF(NOT APPLE) | ||
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| SET(SDL2_FOUND "NO") | ||
| IF(SDL2_LIBRARY_TEMP) | ||
| SET(SDL2_LIBRARY ${SDL2_LIBRARY_TEMP} CACHE STRING "Where the SDL2 Library can be found") | ||
| SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} CACHE INTERNAL "") | ||
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| # For SDL2main | ||
| IF(NOT SDL2_BUILDING_LIBRARY) | ||
| IF(SDL2MAIN_LIBRARY) | ||
| SET(SDL2_LIBRARY ${SDL2MAIN_LIBRARY} ${SDL2_LIBRARY}) | ||
| ENDIF(SDL2MAIN_LIBRARY) | ||
| ENDIF(NOT SDL2_BUILDING_LIBRARY) | ||
| include(FindPackageHandleStandardArgs) | ||
| find_package_handle_standard_args(SDL2 DEFAULT_MSG SDL2_INCLUDE_DIRS SDL2_LIBRARIES SDL2_LIBRARY) | ||
| mark_as_advanced(SDL2_LIBRARIES SDL2_LIBRARY) | ||
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| # 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 ${SDL2_LIBRARY} "-framework Cocoa") | ||
| ENDIF(APPLE) | ||
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| # 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 ${SDL2_LIBRARY} ${CMAKE_THREAD_LIBS_INIT}) | ||
| ENDIF(NOT APPLE) | ||
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| # For MinGW library | ||
| IF(MINGW) | ||
| SET(SDL2_LIBRARY ${MINGW32_LIBRARY} ${SDL2_LIBRARY_TEMP}) | ||
| ENDIF(MINGW) | ||
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| SET(SDL2_FOUND "YES") | ||
| ENDIF(SDL2_LIBRARY_TEMP) | ||
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| INCLUDE(FindPackageHandleStandardArgs) | ||
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| FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2 | ||
| REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR | ||
| VERSION_VAR SDL2_VERSION_STRING) | ||
| if (SDL2_FOUND AND NOT TARGET SDL2::SDL2) | ||
| add_library(SDL2::SDL2 UNKNOWN IMPORTED) | ||
| set_target_properties(SDL2::SDL2 PROPERTIES | ||
| INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIRS}" | ||
| IMPORTED_LOCATION ${SDL2_LIBRARY} | ||
| ) | ||
| endif() |
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