1 files changed, 1 insertions, 0 deletions
diff --git a/configure b/configure
index fa2f962e79..624d49fccb 100755
--- a/configure
+++ b/configure
@@ -3110,6 +3110,7 @@ case $_backend in
 		INCLUDES="$INCLUDES `$_sdlconfig --prefix="$_sdlpath" --cflags`"
 		LIBS="$LIBS `$_sdlconfig --prefix="$_sdlpath" --libs`"
 		LDFLAGS="$LDFLAGS"
+		DEFINES="$DEFINES -DSDL_BACKEND"
 		;;
 	ps2)
 		# TODO ps2