drv->API.SignalSyncKHR = NULL;
drv->API.GetSyncAttrib = _eglGetSyncAttrib;
-#ifdef EGL_MESA_drm_image
drv->API.CreateDRMImageMESA = NULL;
drv->API.ExportDRMImageMESA = NULL;
-#endif
-#ifdef EGL_NOK_swap_region
drv->API.SwapBuffersRegionNOK = NULL;
-#endif
-#ifdef EGL_MESA_image_dma_buf_export
drv->API.ExportDMABUFImageQueryMESA = NULL;
drv->API.ExportDMABUFImageMESA = NULL;
-#endif
}