From f9afd9f861bc7b5fc1ae32ceff15572ef73cbbec Mon Sep 17 00:00:00 2001
From: Geoff Thorpe <geoff@openssl.org>
Date: Thu, 10 Jul 2008 20:08:47 +0000
Subject: [PATCH] If --prefix="C:\foo\bar" is supplied to Configure for a
 windows target, then the backslashes need escaping to avoid being treated as
 switches in the auto-generated strings in opensslconf.h. Perl users are
 welcome to suggest a less hokey way of doing this ...

---
 Configure | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/Configure b/Configure
index 09c356da9d..67878ec5f6 100755
--- a/Configure
+++ b/Configure
@@ -1557,9 +1557,17 @@ print OUT "#define OPENSSL_CPUID_OBJ\n\n" if ($cpuid_obj ne "mem_clr.o");
 while (<IN>)
 	{
 	if	(/^#define\s+OPENSSLDIR/)
-		{ print OUT "#define OPENSSLDIR \"$openssldir\"\n"; }
+		{
+		my $foo = $openssldir;
+		$foo =~ s/\\/\\\\/g;
+		print OUT "#define OPENSSLDIR \"$foo\"\n";
+		}
 	elsif	(/^#define\s+ENGINESDIR/)
-		{ print OUT "#define ENGINESDIR \"$prefix/lib/engines\"\n"; }
+		{
+		my $foo = "$prefix/lib/engines";
+		$foo =~ s/\\/\\\\/g;
+		print OUT "#define ENGINESDIR \"$foo\"\n";
+		}
 	elsif	(/^#((define)|(undef))\s+OPENSSL_EXPORT_VAR_AS_FUNCTION/)
 		{ printf OUT "#undef OPENSSL_EXPORT_VAR_AS_FUNCTION\n"
 			if $export_var_as_fn;
-- 
2.25.1