Ticket #16981: glutesscallback.patch

m4/ax_check_glu.m4

@@ -123 +123 @@
 # else
 #   include <OpenGL/glu.h>
 # endif]],
-                                        [[GLvoid (*func)(...); gluTessCallback(0, 0, func)]])],
+                                        [[GLvoid (*func)(...); GLenum which; gluTessCallback(0, which, func)]])],
                                         [ax_cv_varargs_glu_tesscb=yes])
                       CFLAGS="$ax_save_CFLAGS"])
       AS_IF([test X$ax_cv_varargs_glu_tesscb = Xyes],