#.rst: # FindSDL # ------- # # Locate SDL library # # This module defines # # :: # # SDL_FOUND, if false, do not try to link to SDL # SDL_LIBRARY, the name(s) of the library(ies) to link against # SDL_LIBSDL, the full path and name of libSDL (or SDL.[lib|dll]. # SDL_LIBSDLMAIN, full path and name of libSDLmain (or SDLmain.lib). # SDL_LIBRARY_PATH, the full path to the found libSDL # SDL_INCLUDE_DIR, where to find SDL.h # SDL_VERSION_STRING, human-readable string containing the version of SDL # # # # This module responds to the flag: # # :: # # SDL_BUILDING_LIBRARY # If this is defined, then no SDL_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 proper link flags # as part of the returned SDL_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 -lSDLmain 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 SDL_LIBSDL in your # configuration and no SDL_LIBRARY, it means CMake did not find your SDL # library (SDL.dll, libsdl.so, SDL.framework, etc). Set # SDL_LIBSDL to point to your SDL library, and configure again. # Similarly, if you see an empty SDL_LIBSDLMAIN, you should set this # value as appropriate. These values are used to generate the final # SDL_LIBRARY variable, but when these values are unset, SDL_LIBRARY # does not get created. # # # # $SDLDIR is an environment variable that would correspond to the # ./configure --prefix=$SDLDIR used in building SDL. 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 SDLmain 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 SDL_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 SDL/SDL.h to just SDL.h # This needed to change because "proper" SDL convention is #include # "SDL.h", not . This is done for portability reasons # because not all systems place things in SDL/ (see FreeBSD). # # Modified for OpenTx by Maxim Paperno 19-Dec-2016 # Added SDL_LIBSDL, SDL_LIBSDLMAIN & SDL_LIBRARY_PATH, removed SDLMAIN_LIBRARY, # SDL_LIBRARY_TEMP, and fixed bug with recursive appending of supporting # libraries to cached SDL_LIBRARY_TEMP variable. # #============================================================================= #CMake - Cross Platform Makefile Generator #Copyright 2000-2015 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. #============================================================================= find_path(SDL_INCLUDE_DIR SDL.h HINTS ENV SDLDIR PATH_SUFFIXES SDL SDL12 SDL11 # path suffixes to search inside ENV{SDLDIR} include/SDL include/SDL12 include/SDL11 include ) if(CMAKE_SIZEOF_VOID_P EQUAL 8) set(VC_LIB_PATH_SUFFIX lib/x64) else() set(VC_LIB_PATH_SUFFIX lib/x86) endif() # SDL-1.1 is the name used by FreeBSD ports... # don't confuse it for the version number. find_library(SDL_LIBSDL NAMES SDL SDL-1.1 HINTS ENV SDLDIR PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX} ) # Non-OS X framework versions expect you to also dynamically link to # SDLmain. This is mainly for Windows and OS X. Other (Unix) platforms # seem to provide SDLmain for compatibility even though they don't # necessarily need it. find_library(SDL_LIBSDLMAIN NAMES SDLmain SDLmain-1.1 HINTS ENV SDLDIR PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX} PATHS /sw /opt/local /opt/csw /opt ) # SDL may require threads on your system. # The Apple build may not need an explicit flag because one of the # frameworks may already provide it. # But for non-OSX systems, I will use the CMake Threads package. if(NOT APPLE) find_package(Threads) endif() # MinGW needs an additional library, mwindows # It's total link flags should look like -lmingw32 -lSDLmain -lSDL if(MINGW) set(MINGW32_LIBRARY mingw32 CACHE STRING "mwindows for MinGW") endif() if(SDL_LIBSDL) # For SDLmain if(SDL_LIBSDLMAIN AND NOT SDL_BUILDING_LIBRARY AND NOT SDL_INCLUDE_DIR MATCHES ".framework") list(FIND SDL_LIBSDL "${SDL_LIBSDLMAIN}" _SDL_MAIN_INDEX) if(_SDL_MAIN_INDEX EQUAL -1) list(APPEND _SDL_LIBRARY_TEMP "${SDL_LIBSDLMAIN}") endif() unset(_SDL_MAIN_INDEX) endif() list(APPEND _SDL_LIBRARY_TEMP "${SDL_LIBSDL}") # For OS X, SDL 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) list(APPEND _SDL_LIBRARY_TEMP "-framework Cocoa") endif() if(Threads_FOUND) list(APPEND _SDL_LIBRARY_TEMP ${CMAKE_THREAD_LIBS_INIT}) endif() # MinGW needs an additional library, mwindows # It's total link flags should look like -lmingw32 -lSDLmain -lSDL if(MINGW) list(INSERT 0 _SDL_LIBRARY_TEMP mingw32) endif() # Set the final string here so the GUI reflects the final state. set(SDL_LIBRARY ${_SDL_LIBRARY_TEMP} CACHE STRING "Full list of required SDL & supporting libraries.") unset(_SDL_LIBRARY_TEMP) get_filename_component(_SDL_LIBRARY_TEMP ${SDL_LIBSDL} PATH) set(SDL_LIBRARY_PATH ${_SDL_LIBRARY_TEMP} CACHE PATH "Path to SDL library.") unset(_SDL_LIBRARY_TEMP) endif() if(SDL_INCLUDE_DIR AND EXISTS "${SDL_INCLUDE_DIR}/SDL_version.h") file(STRINGS "${SDL_INCLUDE_DIR}/SDL_version.h" SDL_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_MAJOR_VERSION[ \t]+[0-9]+$") file(STRINGS "${SDL_INCLUDE_DIR}/SDL_version.h" SDL_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_MINOR_VERSION[ \t]+[0-9]+$") file(STRINGS "${SDL_INCLUDE_DIR}/SDL_version.h" SDL_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_PATCHLEVEL[ \t]+[0-9]+$") string(REGEX REPLACE "^#define[ \t]+SDL_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_VERSION_MAJOR "${SDL_VERSION_MAJOR_LINE}") string(REGEX REPLACE "^#define[ \t]+SDL_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_VERSION_MINOR "${SDL_VERSION_MINOR_LINE}") string(REGEX REPLACE "^#define[ \t]+SDL_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL_VERSION_PATCH "${SDL_VERSION_PATCH_LINE}") set(SDL_VERSION_STRING ${SDL_VERSION_MAJOR}.${SDL_VERSION_MINOR}.${SDL_VERSION_PATCH}) unset(SDL_VERSION_MAJOR_LINE) unset(SDL_VERSION_MINOR_LINE) unset(SDL_VERSION_PATCH_LINE) unset(SDL_VERSION_MAJOR) unset(SDL_VERSION_MINOR) unset(SDL_VERSION_PATCH) endif() include(FindPackageHandleStandardArgs) FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL REQUIRED_VARS SDL_LIBRARY SDL_LIBRARY_PATH SDL_INCLUDE_DIR VERSION_VAR SDL_VERSION_STRING)