From 952afb719f3c965bae12b5bd5f0f0f7ed0251cb8 Mon Sep 17 00:00:00 2001
From: Blue Swirl <blauwirbel@gmail.com>
Date: Sun, 19 Sep 2010 08:36:34 +0000
Subject: [PATCH] mingw: use ASLR, no-SEH and DEP if available

If the linker supports the flags --dynamicbase, --no-seh,
or --nxcompat, use them.

Tested on Windows Vista: Process Explorer reports that ASLR and DEP
are in use. No effect seen on Wine or Windows XP.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---
 configure | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/configure b/configure
index 232ba743e..3bfc5e929 100755
--- a/configure
+++ b/configure
@@ -2141,6 +2141,15 @@ if test "$solaris" = "no" ; then
     fi
 fi
 
+# Use ASLR, no-SEH and DEP if available
+if test "$mingw32" = "yes" ; then
+    for flag in --dynamicbase --no-seh --nxcompat; do
+        if $ld --help 2>/dev/null | grep ".$flag" >/dev/null 2>/dev/null ; then
+            LDFLAGS="-Wl,$flag $LDFLAGS"
+        fi
+    done
+fi
+
 confdir=$sysconfdir$confsuffix
 
 tools=
-- 
2.39.5