extern GLenum GLAPIENTRY
_mesa_ClientWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout);
+void GLAPIENTRY
+_mesa_WaitSync_no_error(GLsync sync, GLbitfield flags, GLuint64 timeout);
+
extern void GLAPIENTRY
_mesa_WaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout);