extern void _mesa_install_exec_vtxfmt( struct gl_context *ctx, const GLvertexformat *vfmt );
extern void _mesa_install_save_vtxfmt( struct gl_context *ctx, const GLvertexformat *vfmt );
extern void _mesa_install_exec_vtxfmt( struct gl_context *ctx, const GLvertexformat *vfmt );
extern void _mesa_install_save_vtxfmt( struct gl_context *ctx, const GLvertexformat *vfmt );