+extern void
+_mesa_get_viewport_xform(struct gl_context *ctx, unsigned i,
+ float scale[3], float translate[3]);
+
+extern void GLAPIENTRY
+_mesa_SubpixelPrecisionBiasNV_no_error(GLuint xbits, GLuint ybits);
+
+extern void GLAPIENTRY
+_mesa_SubpixelPrecisionBiasNV(GLuint xbits, GLuint ybits);
+
+extern void GLAPIENTRY
+_mesa_ViewportSwizzleNV_no_error(GLuint index,
+ GLenum swizzlex, GLenum swizzley,
+ GLenum swizzlez, GLenum swizzlew);
+
+extern void GLAPIENTRY
+_mesa_ViewportSwizzleNV(GLuint index,
+ GLenum swizzlex, GLenum swizzley,
+ GLenum swizzlez, GLenum swizzlew);