+extern void GLAPIENTRY
+_mesa_DepthRangeArrayv(GLuint first, GLsizei count, const GLclampd * v);
+
+extern void GLAPIENTRY
+_mesa_DepthRangeIndexed(GLuint index, GLclampd n, GLclampd f);
+
+extern void
+_mesa_set_depth_range(struct gl_context *ctx, unsigned idx,
+ GLclampd nearval, GLclampd farval);