_mesa_GetMaterialiv( GLenum face, GLenum pname, GLint *params );
+extern void
+_mesa_light(GLcontext *ctx, GLuint lnum, GLenum pname, const GLfloat *params);
+
+
/* Lerp between adjacent values in the f(x) lookup table, giving a
* continuous function, with adequeate overall accuracy. (Though
* still pretty good compared to a straight lookup).