diff --git a/stella/configure b/stella/configure
index 3caf1b1f3..dafa058ce 100755
--- a/stella/configure
+++ b/stella/configure
@@ -836,6 +836,7 @@ case $_host_os in
 			DEFINES="$DEFINES -Dmain=SDL_main -DPSP -DBSPF_PSP -DPSP_DEBUG"
 			;;
 		gp2x)
+			CXXFLAGS="-O2 -finline-functions"
 			DEFINES="$DEFINES -DBSPF_GP2X -DGP2X -DHAVE_GETTIMEOFDAY -DHAVE_INTTYPES"
 			MODULES="$MODULES $SRC/gp2x"
 			INCLUDES="$INCLUDES -I$SRC/gp2x"