diff --git a/cmake/modules/FindSDL2.cmake b/cmake/modules/FindSDL2.cmake index 9b8daa0d..163abf46 100644 --- a/cmake/modules/FindSDL2.cmake +++ b/cmake/modules/FindSDL2.cmake @@ -1,4 +1,4 @@ - +# 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 @@ -6,13 +6,13 @@ # # This module responds to the the flag: # SDL2_BUILDING_LIBRARY -# If this is defined, then no SDL2main will be linked in because +# 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 SDLmain.h and SDLmain.m your project for the +# 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. @@ -37,7 +37,7 @@ # 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. +# 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. @@ -48,183 +48,149 @@ # 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 +# This needed to change because "proper" SDL2 convention # is #include "SDL.h", not . 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. #============================================================================= # Copyright 2003-2009 Kitware, Inc. # -# Distributed under the OSI-approved BSD License (the "License"). +# 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. #============================================================================= -# CMake - Cross Platform Makefile Generator -# Copyright 2000-2016 Kitware, Inc. -# Copyright 2000-2011 Insight Software Consortium -# All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions -# are met: -# -# * Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# -# * Redistributions in binary form must reproduce the above copyright -# notice, this list of conditions and the following disclaimer in the -# documentation and/or other materials provided with the distribution. -# -# * Neither the names of Kitware, Inc., the Insight Software Consortium, -# nor the names of their contributors may be used to endorse or promote -# products derived from this software without specific prior written -# permission. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -# -# ------------------------------------------------------------------------------ -# -# The above copyright and license notice applies to distributions of -# CMake in source and binary form. Some source files contain additional -# notices of original copyright by their contributors; see each source -# for details. Third-party software packages supplied with CMake under -# compatible licenses provide their own copyright notices documented in -# corresponding subdirectories. -# -# ------------------------------------------------------------------------------ -# -# CMake was initially developed by Kitware with the following sponsorship: -# -# * National Library of Medicine at the National Institutes of Health -# as part of the Insight Segmentation and Registration Toolkit (ITK). -# -# * US National Labs (Los Alamos, Livermore, Sandia) ASC Parallel -# Visualization Initiative. -# -# * National Alliance for Medical Image Computing (NAMIC) is funded by the -# National Institutes of Health through the NIH Roadmap for Medical Research, -# Grant U54 EB005149. -# -# * Kitware, Inc. -# +# (To distribute this file outside of CMake, substitute the full +# License text for the above reference.) -message("") -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 + ~/Library/Frameworks + /Library/Frameworks + /usr/local/include/SDL2 + /usr/include/SDL2 + /sw # Fink + /opt/local # DarwinPorts + /opt/csw # Blastwave + /opt +) +#MESSAGE("SDL2_INCLUDE_DIR is ${SDL2_INCLUDE_DIR}") + +FIND_LIBRARY(SDL2_LIBRARY_PATH + NAMES SDL2 + HINTS + $ENV{SDL2DIR} + PATH_SUFFIXES lib64 lib + PATHS + /sw + /opt/local + /opt/csw + /opt ) -if(CMAKE_SIZEOF_VOID_P EQUAL 8) - set(VC_LIB_PATH_SUFFIX lib/x64) -else() - set(VC_LIB_PATH_SUFFIX lib/x86) -endif() +set(SDL2_LIBRARY_ONLY ${SDL2_LIBRARY_PATH} CACHE STRING "The SDL2 library, with no other libraries.") +set(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_PATH}) -FIND_LIBRARY(SDL2_LIBRARY_TEMP - NAMES SDL2 - HINTS - $ENV{SDL2DIR} - PATH_SUFFIXES lib64 lib ${VC_LIB_PATH_SUFFIX} - PATHS ${SDL2_SEARCH_PATHS} -) +#MESSAGE("SDL2_LIBRARY_TEMP is ${SDL2_LIBRARY_TEMP}") -IF(SDL2_LIBRARY_TEMP) - FIND_PATH(SDL2_INCLUDE_DIR SDL.h - HINTS - $ENV{SDL2DIR} - PATH_SUFFIXES include/SDL2 include - 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 lib64 lib + PATHS + /sw + /opt/local + /opt/csw + /opt ) + ENDIF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework") +ENDIF(NOT SDL2_BUILDING_LIBRARY) - 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 ${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) - # 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 library, mwindows +# It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -lmwindows +# (Actually on second look, I think it only needs one of the m* libraries.) +IF(MINGW) + SET(MINGW32_LIBRARY mingw32 CACHE STRING "mwindows for MinGW") +ENDIF(MINGW) - # MinGW needs an additional library, mwindows - # It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -lmwindows - # (Actually on second look, I think it only needs one of the m* libraries.) - IF(MINGW) - SET(MINGW32_LIBRARY mingw32 CACHE STRING "mwindows for MinGW") - ENDIF(MINGW) +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 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 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 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) + + IF(WIN32) + SET(SDL2_LIBRARY_TEMP winmm imm32 version msimg32 ${SDL2_LIBRARY_TEMP}) + ENDIF(WIN32) - # 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 the final string here so the GUI reflects the final state. - SET(SDL2_LIBRARY ${SDL2_LIBRARY_TEMP} CACHE STRING "Where the SDL2 Library can be found") - - # Unset the temp variable to INTERNAL so it is not seen in the CMake GUI - UNSET(SDL2_LIBRARY_TEMP) + SET(SDL2_FOUND "YES") ENDIF(SDL2_LIBRARY_TEMP) -message("") - INCLUDE(FindPackageHandleStandardArgs) -FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2 REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR) +FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2 + REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR) + +IF(SDL2_STATIC) + if (UNIX AND NOT APPLE) + EXECUTE_PROCESS(COMMAND sdl2-config --static-libs OUTPUT_VARIABLE SDL2_LINK_FLAGS) + STRING(REGEX REPLACE "(\r?\n)+$" "" SDL2_LINK_FLAGS "${SDL2_LINK_FLAGS}") + SET(SDL2_LIBRARY ${SDL2_LINK_FLAGS}) + ENDIF() +ENDIF(SDL2_STATIC)