From 50ea866e4c657da00ad03aaa6f2eb492978bf00e Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Thu, 17 Dec 2015 09:06:53 +0000
Subject: [PATCH] Fix build breakage on Unix.

Occurred as a side effect of commit 198bca233, in which I wrote a Perl
loop of the form 'foreach $srcdir (@srcdirs)' inside which I modified
$srcdir - forgetting the Perl gotcha that if you do that, $srcdir
temporarily aliases the actual array element, so you end up modifying
the array you iterated over. Hence, a set of transformations intended
to convert the source directory list into a special form for the nmake
batch-mode inference rule syntax in particular ended up back in
@srcdirs to be reflected in unrelated makefiles output later in the
run.
---
 mkfiles.pl | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/mkfiles.pl b/mkfiles.pl
index 3ce0e24d..51fa6c18 100755
--- a/mkfiles.pl
+++ b/mkfiles.pl
@@ -677,12 +677,13 @@ if (defined $makefiles{'vc'}) {
 	}
     }
     print "\n";
-    foreach $srcdir ("", @srcdirs) {
+    foreach $real_srcdir ("", @srcdirs) {
+        $srcdir = $real_srcdir;
         if ($srcdir ne "") {
             $srcdir =~ s!/!\\!g;
             $srcdir = $dirpfx . $srcdir;
             $srcdir =~ s!\\\.\\!\\!;
-            $srcdir = "{$srcdir}"
+            $srcdir = "{$srcdir}";
         }
         # The double colon at the end of the line makes this a
         # 'batch-mode inference rule', which means that nmake will