ccan/ccan/err/_info

#include "config.h"
#include <stdio.h>
#include <string.h>

/**
 * err - err(), errx(), warn() and warnx(), as per BSD's err.h.
 *
 * A few platforms don't provide err.h; for those, this provides replacements.
 * For most, it simple includes the system err.h.
 *
 * Unfortunately, you have to call err_set_progname() to tell the replacements
 * your program name, otherwise it prints "unknown program".
 *
 * Example:
 *	#include <ccan/err/err.h>
 *
 *	int main(int argc, char *argv[])
 *	{
 *		err_set_progname(argv[0]);
 *		if (argc != 1)
 *			errx(1, "Expect no arguments");
 *		exit(0);
 *	}
 *
 * License: CC0 (Public domain)
 * Author: Rusty Russell <rusty@rustcorp.com.au>
 */
int main(int argc, char *argv[])
{
	if (argc != 2)
		return 1;

	if (strcmp(argv[1], "depends") == 0) {
#if !HAVE_ERR_H
		printf("ccan/compiler\n");
#endif
		return 0;
	}

	return 1;
}