Modified configure to #define SDL_BACKEND when using the SDL backend (akin to X11_BACKEND)

svn-id: r24151

1 files changed, 1 insertions, 0 deletions

diff --git a/configure b/configure
index 2a5cf0ba8c..08cf38509c 100755
--- a/configure
+++ b/configure
@@ -1305,6 +1305,7 @@ case $_backend in
 		find_sdlconfig
 		INCLUDES="$INCLUDES `$_sdlconfig --cflags`"
 		LIBS="$LIBS `$_sdlconfig --libs`"
+		DEFINES="$DEFINES -DSDL_BACKEND"
 		MODULES="$MODULES backends/platform/sdl"
 		;;
 	gp2x)