git: 9front

ref: c6b681c48e27d4d5d258c393567878b55d1a43e2
dir: /sys/src/libc/port/perror.c/

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#include <u.h>
#include <libc.h>

void
perror(char *s)
{
	char buf[ERRMAX];

	buf[0] = '\0';
	errstr(buf, sizeof buf);
	if(s && *s)
		fprint(2, "%s: %s\n", s, buf);
	else
		fprint(2, "%s\n", buf);
}