done
fi
- if test -d $sdl_framework; then
+ if test x"$sdl_framework" != x && test -d "$sdl_framework"; then
AC_MSG_RESULT($sdl_framework)
sdl_framework_dir=`dirname $sdl_framework`
SDL_CFLAGS="-F$sdl_framework_dir -Wl,-framework,SDL2 -I$sdl_framework/include"