+void GLAPIENTRY
+_mesa_NamedFramebufferDrawBuffer_no_error(GLuint framebuffer, GLenum buf);
+
+extern void GLAPIENTRY
+_mesa_NamedFramebufferDrawBuffer(GLuint framebuffer, GLenum buf);
+
+void GLAPIENTRY
+_mesa_DrawBuffers_no_error(GLsizei n, const GLenum *buffers);
+
+extern void GLAPIENTRY
+_mesa_DrawBuffers(GLsizei n, const GLenum *buffers);
+
+void GLAPIENTRY
+_mesa_NamedFramebufferDrawBuffers_no_error(GLuint framebuffer, GLsizei n,
+ const GLenum *bufs);
+