#include <xcb/xproto.h>
#include <xcb/xcb_icccm.h>

#include <string.h>
#include <unistd.h>
#include <stdio.h>

int main()
{
	int screen_number_ret;
	xcb_connection_t *conn=xcb_connect(0, &screen_number_ret);
	const struct xcb_setup_t *setup=xcb_get_setup(conn);
	xcb_screen_iterator_t iter=xcb_setup_roots_iterator(setup);
	xcb_window_t root=iter.data->root;
	xcb_window_t app=xcb_generate_id(conn);
	xcb_size_hints_t hints;
	xcb_atom_t wm_normal_hints;
	char buffer[1024];

	static const char wm_normal_hints_name[]="WM_NORMAL_HINTS";

	xcb_create_window(conn, iter.data->root_depth, app, root,
			  100, 100, 300, 300, 0,
			  XCB_WINDOW_CLASS_INPUT_OUTPUT,
			  iter.data->root_visual, 0, 0);

	memset(&hints, 0, sizeof(hints));

	xcb_icccm_size_hints_set_min_size(&hints, 300, 300);
	xcb_icccm_size_hints_set_base_size(&hints, 300, 300);
	xcb_icccm_size_hints_set_max_size(&hints,  300, 300);

	wm_normal_hints=
		xcb_intern_atom_reply(conn,
				      xcb_intern_atom(conn, 0,
						      sizeof(wm_normal_hints_name)-1,
						      wm_normal_hints_name),
				      0)->atom;

	xcb_icccm_set_wm_size_hints(conn, app, wm_normal_hints, &hints);
	xcb_map_window(conn, app);

	/*
	** This flush and sleep is required to reproduce the bug.
	** With this in place, the app window is not resizable.
	**
	** Without the sleep, the app window will be resizable 99% of the
	** the time!
	*/
	xcb_flush(conn);
	sleep(5);

	xcb_icccm_size_hints_set_min_size(&hints, 1, 300);
	xcb_icccm_size_hints_set_max_size(&hints, 1920, 300);
	xcb_icccm_set_wm_size_hints(conn, app, wm_normal_hints, &hints);

	xcb_flush(conn);
	printf("Ok, go ahead and try to resize the window horizontally\n");
	fgets(buffer, sizeof(buffer), stdin);
}