From: Michael Olbrich <m.olbrich@pengutronix.de>
Date: Wed, 24 Oct 2012 18:22:53 +0200
Subject: [PATCH] configure: cache result of OpenGL test

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
---
 configure.in |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/configure.in b/configure.in
index 865075e..38ac8b0 100644
--- a/configure.in
+++ b/configure.in
@@ -166,17 +166,17 @@ case "$host" in
         fi
         ;;
 esac
-AC_MSG_CHECKING(for OpenGL support)
-have_opengl=no
+AC_CACHE_CHECK([for OpenGL support],[sdl_cv_lib_opengl],[
+sdl_cv_lib_opengl=no
 AC_TRY_COMPILE([
  #include "SDL_opengl.h"
 ],[
  GLuint texture;
 ],[
-have_opengl=yes
-])
-AC_MSG_RESULT($have_opengl)
-if test x$have_opengl = xyes; then
+sdl_cv_lib_opengl=yes
+])])
+AC_MSG_RESULT($sdl_cv_lib_opengl)
+if test x$sdl_cv_lib_opengl = xyes; then
     CFLAGS="$CFLAGS -DHAVE_OPENGL"
     GL_LIBS="$SYS_GL_LIBS"
 else