You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
173 lines
6.1 KiB
173 lines
6.1 KiB
|
|
# 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 |
|
# |
|
# This module responds to the the flag: |
|
# SDL2_BUILDING_LIBRARY |
|
# If this is defined, then no SDL2main 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 SDLmain.h and SDLmain.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" SDL 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" SDL 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). |
|
|
|
#============================================================================= |
|
# 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.) |
|
|
|
# message("<FindSDL2.cmake>") |
|
|
|
SET(SDL2_SEARCH_PATHS |
|
~/Library/Frameworks |
|
/Library/Frameworks |
|
/usr/local |
|
/usr |
|
/sw # Fink |
|
/opt/local # DarwinPorts |
|
/opt/csw # Blastwave |
|
/opt |
|
${SDL2_PATH} |
|
) |
|
|
|
FIND_PATH(SDL2_INCLUDE_DIR SDL.h |
|
HINTS |
|
$ENV{SDL2DIR} |
|
PATH_SUFFIXES include/SDL2 include |
|
PATHS ${SDL2_SEARCH_PATHS} |
|
) |
|
|
|
if(CMAKE_SIZEOF_VOID_P EQUAL 8) |
|
set(PATH_SUFFIXES lib64 lib/x64 lib) |
|
else() |
|
set(PATH_SUFFIXES lib/x86 lib) |
|
endif() |
|
|
|
FIND_LIBRARY(SDL2_LIBRARY_TEMP |
|
NAMES SDL2 |
|
HINTS |
|
$ENV{SDL2DIR} |
|
PATH_SUFFIXES ${PATH_SUFFIXES} |
|
PATHS ${SDL2_SEARCH_PATHS} |
|
) |
|
|
|
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 ${PATH_SUFFIXES} |
|
PATHS ${SDL2_SEARCH_PATHS} |
|
) |
|
ENDIF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework") |
|
ENDIF(NOT SDL2_BUILDING_LIBRARY) |
|
|
|
# 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) |
|
|
|
# MinGW needs an additional link flag, -mwindows |
|
# It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -mwindows |
|
IF(MINGW) |
|
SET(MINGW32_LIBRARY mingw32 "-mwindows" CACHE STRING "mwindows for MinGW") |
|
ENDIF(MINGW) |
|
|
|
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 "") |
|
ENDIF(SDL2_LIBRARY_TEMP) |
|
|
|
# message("</FindSDL2.cmake>") |
|
|
|
INCLUDE(FindPackageHandleStandardArgs) |
|
|
|
FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2 REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR)
|
|
|