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-rw-r--r--progs/demos/isosurf.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/progs/demos/isosurf.c b/progs/demos/isosurf.c
index 6923ca2bba..2e9dff1726 100644
--- a/progs/demos/isosurf.c
+++ b/progs/demos/isosurf.c
@@ -847,8 +847,8 @@ static void Init(int argc, char *argv[])
glClearColor(0.0, 0.0, 1.0, 0.0);
glEnable( GL_DEPTH_TEST );
- glEnable( GL_VERTEX_ARRAY_EXT );
- glEnable( GL_NORMAL_ARRAY_EXT );
+ glEnableClientState( GL_VERTEX_ARRAY );
+ glEnableClientState( GL_NORMAL_ARRAY );
glMatrixMode(GL_PROJECTION);
glLoadIdentity();