From 5b4de1c915e7f8db19bfe3907d1a301406a3ded7 Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Sat, 1 Dec 2018 16:50:40 +0100
Subject: [PATCH] Cygwin: mkvers: fix a bug in sed statement

While reformatting the script, backticks `` were replaced with
brackets $().  This in turn invalidated the \\( ... \\) expressions in the
sed script because backslash resolution in $() works differently from
backslash resolution in ``.  Only a single backslash is valid now.

While at it, fix up the uname(2) date representation when building a
snapshot.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
---
 winsup/cygwin/mkvers.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/winsup/cygwin/mkvers.sh b/winsup/cygwin/mkvers.sh
index 5aecb141b..6309c84b1 100755
--- a/winsup/cygwin/mkvers.sh
+++ b/winsup/cygwin/mkvers.sh
@@ -140,7 +140,8 @@ done | tee /tmp/mkvers.$$ 1>&9
 trap "rm -f /tmp/mkvers.$$" 0 1 2 15
 
 if [ -n "$snapshotdate" ]; then
-  usedate="$(echo $snapshotdate | sed 's/-\\(..:..[^-]*\\).*$/ \1SNP/')"
+  usedate="$(echo $snapshotdate \
+	     | sed -e 's/\(....\)\(..\)\(..\)-\(..:..\).*$/\1-\2-\3 \4SNP/')"
 else
   usedate="$builddate"
 fi