_mesa_StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask);
-extern void APIENTRY
-_mesa_StencilOpSeparateATI(GLenum face, GLenum sfail, GLenum zfail, GLenum zpass);
-
extern void GLAPIENTRY
_mesa_StencilFuncSeparateATI(GLenum frontfunc, GLenum backfunc, GLint ref, GLuint mask);