From 1183d5ebfef96603df1217e3ae3a94506b89ce26 Mon Sep 17 00:00:00 2001
From: Akim Demaille <akim.demaille@gmail.com>
Date: Sun, 23 Jan 2022 18:10:11 +0100
Subject: gnulib: update

---
 bootstrap      | 22 +++++++++++++++++++---
 gnulib         |  2 +-
 lib/.gitignore |  2 ++
 3 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/bootstrap b/bootstrap
index 63e76dee..9535aecc 100755
--- a/bootstrap
+++ b/bootstrap
@@ -4,7 +4,7 @@ scriptversion=2021-04-11.09; # UTC
 
 # Bootstrap this package from checked-out sources.
 
-# Copyright (C) 2003-2021 Free Software Foundation, Inc.
+# Copyright (C) 2003-2022 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -763,9 +763,25 @@ if $use_gnulib; then
       shallow=
       if test -z "$GNULIB_REVISION"; then
         git clone -h 2>&1 | grep -- --depth > /dev/null && shallow='--depth 2'
+        git clone $shallow ${GNULIB_URL:-$default_gnulib_url} "$gnulib_path" \
+          || cleanup_gnulib
+      else
+        git fetch -h 2>&1 | grep -- --depth > /dev/null && shallow='--depth 2'
+        mkdir -p "$gnulib_path"
+        # Only want a shallow checkout of $GNULIB_REVISION, but git does not
+        # support cloning by commit hash. So attempt a shallow fetch by commit
+        # hash to minimize the amount of data downloaded and changes needed to
+        # be processed, which can drastically reduce download and processing
+        # time for checkout. If the fetch by commit fails, a shallow fetch can
+        # not be performed because we do not know what the depth of the commit
+        # is without fetching all commits. So fallback to fetching all commits.
+        git -C "$gnulib_path" init
+        git -C "$gnulib_path" remote add origin ${GNULIB_URL:-$default_gnulib_url}
+        git -C "$gnulib_path" fetch $shallow origin "$GNULIB_REVISION" \
+          || git -C "$gnulib_path" fetch origin \
+          || cleanup_gnulib
+        git -C "$gnulib_path" reset --hard FETCH_HEAD
       fi
-      git clone $shallow ${GNULIB_URL:-$default_gnulib_url} "$gnulib_path" \
-        || cleanup_gnulib
 
       trap - 1 2 13 15
     fi
diff --git a/gnulib b/gnulib
index 4bdc327d..71f29a9f 160000
--- a/gnulib
+++ b/gnulib
@@ -1 +1 @@
-Subproject commit 4bdc327dbda59dcdbfa0f983a4f35c4a4ec3578c
+Subproject commit 71f29a9f4673e76e2bef19471a2f35cfa312d99e
diff --git a/lib/.gitignore b/lib/.gitignore
index 374ccdd9..fac66ae4 100644
--- a/lib/.gitignore
+++ b/lib/.gitignore
@@ -371,7 +371,9 @@
 /stdint.in.h
 /stdio--.h
 /stdio-impl.h
+/stdio-read.c
 /stdio-safer.h
+/stdio-write.c
 /stdio.h
 /stdio.in.h
 /stdlib.h
-- 
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