FindSDL_mixer

尋找 SDL_mixer 函式庫

此模組定義

SDL_MIXER_LIBRARIES, the name of the library to link against
SDL_MIXER_INCLUDE_DIRS, where to find the headers
SDL_MIXER_FOUND, if false, do not try to link against
SDL_MIXER_VERSION_STRING - human-readable string containing the
                           version of SDL_mixer

為了向後相容，以下變數也會被設定

SDLMIXER_LIBRARY (same value as SDL_MIXER_LIBRARIES)
SDLMIXER_INCLUDE_DIR (same value as SDL_MIXER_INCLUDE_DIRS)
SDLMIXER_FOUND (same value as SDL_MIXER_FOUND)

$SDLDIR 是一個環境變數，對應於建構 SDL 時使用的 ./configure --prefix=$SDLDIR。