Add an SDL backend

1 files changed, 19 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d418b428..415b8839 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -26,6 +26,7 @@ OPTION(OSS     "Check for OSS backend"                 ON)
 OPTION(SOLARIS "Check for Solaris backend"             ON)
 OPTION(DSOUND  "Check for DirectSound backend"         ON)
 OPTION(WINMM   "Check for Windows Multimedia backend"  ON)
+OPTION(SDL     "Check for SDL backend"                 ON)
 
 OPTION(DLOPEN  "Check for the dlopen API for loading optional libs"  ON)
 
@@ -320,6 +321,24 @@ IF(HAVE_WINDOWS_H)
     ENDIF()
 ENDIF()
 
+# Check SDL backend
+IF(SDL)
+    CHECK_INCLUDE_FILE(SDL/SDL.h HAVE_SDL_SDL_H)
+    IF(HAVE_SDL_SDL_H)
+        CHECK_LIBRARY_EXISTS(SDL SDL_Init "" HAVE_LIBSDL)
+        IF(HAVE_DLFCN_H OR HAVE_LIBSDL)
+            SET(HAVE_SDL 1)
+            SET(ALC_OBJS  ${ALC_OBJS} Alc/sdl.c)
+            IF(HAVE_DLFCN_H)
+                SET(BACKENDS  "${BACKENDS} SDL,")
+            ELSE()
+                SET(BACKENDS  "${BACKENDS} SDL \(linked\),")
+                SET(EXTRA_LIBS SDL ${EXTRA_LIBS})
+            ENDIF()
+        ENDIF()
+    ENDIF()
+ENDIF()
+
 # This is always available
 SET(BACKENDS  "${BACKENDS} WaveFile")