make sure -lGL is used in opengl enabled mode

SVN-Revision: 1098

diff --git a/configure.ac b/configure.ac
index 422b03f..851c492 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -88,7 +88,7 @@ if test "x$no_gl" = "xyes" -o "x$enable_opengl" = "xno"; then
 else
   CFLAGS="$CFLAGS $GL_CFLAGS"
   CXXFLAGS="$CXXFLAGS $GL_CFLAGS"
-  LIBS="$LIBS $GL_LIBS"
+  LIBS="$LIBS $GL_LIBS -lGL"
 fi
 
 AC_CHECK_LIB(z, gzopen,, AC_MSG_ERROR([*** zlib is missing]))