From a7dba6f870a82e3be87bda50593cb5d2042277fd Mon Sep 17 00:00:00 2001
From: Jarkko Hietaniemi <jhi@iki.fi>
Date: Tue, 13 Oct 2015 08:55:08 -0400
Subject: [PATCH] IRIX <sys/prctl.h> is not what Configure expects.

It exists, but the API is something completely different,
so the compilation attempt ends up in a fireworks display.
---
 hints/irix_6.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hints/irix_6.sh b/hints/irix_6.sh
index fc315a5ab165..832fde29bff7 100644
--- a/hints/irix_6.sh
+++ b/hints/irix_6.sh
@@ -683,3 +683,6 @@ usemymalloc=${usemymalloc:-false}
 # instead; in IRIX this is not true because the prototype of fcntl()
 # requires explicit include of <fcntl.h>
 i_fcntl=define
+
+# There is <prctl.h> but it's not the Linux one that Configure expects.
+d_prctl="$undef"