$OpenBSD: patch-ifne_c,v 1.1.1.1 2011/05/04 14:11:59 sthen Exp $ --- ifne.c.orig Sun May 1 13:12:58 2011 +++ ifne.c Sun May 1 13:13:20 2011 @@ -23,6 +23,7 @@ #include <sys/wait.h> #include <sys/types.h> #include <string.h> +#include <signal.h> #define streq(a, b) (!strcmp((a), (b))) static void stdin_to_stream(char *buf, ssize_t r, FILE *outf) {