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#ifndef WV_ERR_H
#define WV_ERR_H

#ifdef __OpenBSD__
#include <err.h>
#else
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>

static void err(int eval, const char *fmt, ...)
{
	va_list ap;

	va_start(ap, fmt);
	fprintf(stderr, "wv: ");
	vfprintf(stderr, fmt, ap);
	fprintf(stderr, ": %s\n", strerror(errno));
	va_end(ap);
	exit(eval);
}

static void errx(int eval, const char *fmt, ...)
{
	va_list ap;

	va_start(ap, fmt);
	fprintf(stderr, "wv: ");
	vfprintf(stderr, fmt, ap);
	fprintf(stderr, "\n");
	va_end(ap);
	exit(eval);
}
#endif /* !__OpenBSD__ */

#endif /* WV_ERR_H */