+CFLAGS="$CFLAGS -I/usr/include/freetype2"
+AC_CHECK_LIB(SDL,
+ main,
+ LIBS="$LIBS -lSDL",
+ AC_MSG_ERROR([*** SDL library not found!])
+)
+AC_CHECK_LIB(SDL_image,
+ main,
+ LIBS="$LIBS -lSDL_image",
+ AC_MSG_ERROR([*** SDL_image library not found!])
+)
+AC_CHECK_LIB(SDL_mixer,
+ main,
+ LIBS="$LIBS -lSDL_mixer",
+ AC_MSG_ERROR([*** SDL_mixer library not found!])
+)
+AC_CHECK_LIB(GL,
+ main,
+ LIBS="$LIBS -lGL",
+ AC_MSG_ERROR([*** GL library not found!])
+)
+AC_CHECK_LIB(GLU,
+ main,
+ LIBS="$LIBS -lGLU",
+ AC_MSG_ERROR([*** GLU library not found!])
+)
+AC_CHECK_LIB(ftgl,
+ main,
+ LIBS="$LIBS -lftgl",
+ AC_MSG_ERROR([*** FTGL library not found!])
+)