From 9b1a1e62917b2c8f85841d38d73700ff14be2024 Mon Sep 17 00:00:00 2001
From: Jason Rumney <jasonr@gnu.org>
Date: Fri, 1 Feb 2008 23:29:29 +0000
Subject: [PATCH] Define VIRT_ADDR_VARIES.

---
 src/s/cygwin.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/s/cygwin.h b/src/s/cygwin.h
index 0fde4fddbd3..0dfb2adaa45 100644
--- a/src/s/cygwin.h
+++ b/src/s/cygwin.h
@@ -146,6 +146,9 @@ Boston, MA 02110-1301, USA.  */
    why it needed to be changed.  */
 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
 
+/* Virtual addresses of pure and impure space can vary, as on Windows.  */
+#define VIRT_ADDR_VARIES
+
 /* the end */
 
 /* arch-tag: 5ae7ba00-83b0-4ab3-806a-3e845779191b
-- 
2.39.2