ubuntu-linux-kernel/tools/build/feature/test-gtk2.c

// SPDX-License-Identifier: GPL-2.0
#pragma GCC diagnostic ignored "-Wstrict-prototypes"
#include <gtk/gtk.h>
#pragma GCC diagnostic error "-Wstrict-prototypes"

int main(int argc, char *argv[])
{
	gtk_init(&argc, &argv);

        return 0;
}