1 files changed, 2 insertions, 2 deletions
diff --git a/progs/redbook/fogcoord.c b/progs/redbook/fogcoord.c
index 39e4689948..17ef7ae5f3 100644
--- a/progs/redbook/fogcoord.c
+++ b/progs/redbook/fogcoord.c
@@ -58,8 +58,7 @@
  *  three vertices of the triangle. 
  */
 
-#define GL_GLEXT_PROTOTYPES
-
+#include <GL/glew.h>
 #include <GL/glut.h>
 #include <math.h>
 #include <stdlib.h>
@@ -185,6 +184,7 @@ int main(int argc, char** argv)
    glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGB);
    glutInitWindowSize(500, 500);
    glutCreateWindow(argv[0]);
+   glewInit();
    init();
    glutReshapeFunc (reshape);
    glutKeyboardFunc (keyboard);