From 3367acdb344a1d7fcf8f53748d301d652c8911dd Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Thu, 24 Jan 2019 09:36:25 -0200
Subject: [PATCH] hurd: Fix libsupport xsigstack build

Hurd does not support MAP_NORESERVE and MAP_STACK.

Checked on i686-gnu build.

	* support/xsigstack.c (MAP_NORESERVE, MAP_STACK): Define if they
	are not defined.
---
 ChangeLog           | 3 +++
 support/xsigstack.c | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index dfad23b0c5..af78b366f5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2019-01-24  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
+	* support/xsigstack.c (MAP_NORESERVE, MAP_STACK): Define if they
+	are not defined.
+
 	[BZ #24122]
 	* elf/Makefile (tests): Add tst-audit13.
 	(modules-names): Add tst-audit13mod1.
diff --git a/support/xsigstack.c b/support/xsigstack.c
index cebfa19aa5..45ad41e8f9 100644
--- a/support/xsigstack.c
+++ b/support/xsigstack.c
@@ -26,6 +26,13 @@
 #include <sys/mman.h>
 #include <sys/param.h> /* roundup, MAX */
 
+#ifndef MAP_NORESERVE
+# define MAP_NORESERVE 0
+#endif
+#ifndef MAP_STACK
+# define MAP_STACK 0
+#endif
+
 /* The "cookie" returned by xalloc_sigstack points to one of these
    structures.  */
 struct sigstack_desc