- (stevesk) pty.c: HP-UX 10 and 11 don't define TIOCSCTTY.  Add error() to
    failed ioctl(TIOCSCTTY) call.
diff --git a/pty.c b/pty.c
index cdf1d12..40bfd52 100644
--- a/pty.c
+++ b/pty.c
@@ -238,12 +238,8 @@
 	/* Make it our controlling tty. */
 #ifdef TIOCSCTTY
 	debug("Setting controlling tty using TIOCSCTTY.");
-	/*
-	 * We ignore errors from this, because HPSUX defines TIOCSCTTY, but
-	 * returns EINVAL with these arguments, and there is absolutely no
-	 * documentation.
-	 */
-	ioctl(*ttyfd, TIOCSCTTY, NULL);
+	if (ioctl(*ttyfd, TIOCSCTTY, NULL) < 0)
+		error("ioctl(TIOCSCTTY): %.100s", strerror(errno));
 #endif /* TIOCSCTTY */
 #ifdef HAVE_NEWS4
 	if (setpgrp(0,0) < 0)