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| <span id="module:FindSDL_sound"></span><h1>FindSDL_sound<a class="headerlink" href="#findsdl-sound" title="Permalink to this headline">ΒΆ</a></h1> | |
| <p>Locates the SDL_sound library</p> | |
| <p>This module depends on SDL being found and must be called AFTER | |
| FindSDL.cmake is called.</p> | |
| <p>This module defines</p> | |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>SDL_SOUND_INCLUDE_DIR, where to find SDL_sound.h | |
| SDL_SOUND_FOUND, if false, do not try to link to SDL_sound | |
| SDL_SOUND_LIBRARIES, this contains the list of libraries that you need | |
| to link against. | |
| SDL_SOUND_EXTRAS, this is an optional variable for you to add your own | |
| flags to SDL_SOUND_LIBRARIES. This is prepended to SDL_SOUND_LIBRARIES. | |
| This is available mostly for cases this module failed to anticipate for | |
| and you must add additional flags. This is marked as ADVANCED. | |
| SDL_SOUND_VERSION_STRING, human-readable string containing the | |
| version of SDL_sound | |
| </pre></div> | |
| </div> | |
| <p>This module also defines (but you shouldn't need to use directly)</p> | |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>SDL_SOUND_LIBRARY, the name of just the SDL_sound library you would link | |
| against. Use SDL_SOUND_LIBRARIES for you link instructions and not this one. | |
| </pre></div> | |
| </div> | |
| <p>And might define the following as needed</p> | |
| <div class="highlight-none notranslate"><div class="highlight"><pre><span></span>MIKMOD_LIBRARY | |
| MODPLUG_LIBRARY | |
| OGG_LIBRARY | |
| VORBIS_LIBRARY | |
| SMPEG_LIBRARY | |
| FLAC_LIBRARY | |
| SPEEX_LIBRARY | |
| </pre></div> | |
| </div> | |
| <p>Typically, you should not use these variables directly, and you should | |
| use SDL_SOUND_LIBRARIES which contains SDL_SOUND_LIBRARY and the other | |
| audio libraries (if needed) to successfully compile on your system.</p> | |
| <p>Created by Eric Wing. This module is a bit more complicated than the | |
| other FindSDL* family modules. The reason is that SDL_sound can be | |
| compiled in a large variety of different ways which are independent of | |
| platform. SDL_sound may dynamically link against other 3rd party | |
| libraries to get additional codec support, such as Ogg Vorbis, SMPEG, | |
| ModPlug, MikMod, FLAC, Speex, and potentially others. Under some | |
| circumstances which I don't fully understand, there seems to be a | |
| requirement that dependent libraries of libraries you use must also be | |
| explicitly linked against in order to successfully compile. SDL_sound | |
| does not currently have any system in place to know how it was | |
| compiled. So this CMake module does the hard work in trying to | |
| discover which 3rd party libraries are required for building (if any). | |
| This module uses a brute force approach to create a test program that | |
| uses SDL_sound, and then tries to build it. If the build fails, it | |
| parses the error output for known symbol names to figure out which | |
| libraries are needed.</p> | |
| <p>Responds to the $SDLDIR and $SDLSOUNDDIR environmental variable that | |
| would correspond to the ./configure --prefix=$SDLDIR used in building | |
| SDL.</p> | |
| <p>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 selectionor set the CMake environment CMAKE_INCLUDE_PATH | |
| to modify the search paths.</p> | |
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