patching file htl/Makefile
Hunk #1 FAILED at 165.
1 out of 1 hunk FAILED -- saving rejects to file htl/Makefile.rej
The next patch would create the file htl/htlfreeres.c,
which already exists!  Applying it anyway.
patching file htl/htlfreeres.c
Hunk #1 FAILED at 1.
1 out of 1 hunk FAILED -- saving rejects to file htl/htlfreeres.c.rej

Reject file htl/Makefile.rej:
--- htl/Makefile
+++ htl/Makefile
@@ -165,7 +165,7 @@ headers :=				\
 
 distribute :=
 
-routines := forward libc_pthread_init alloca_cutoff pt-atfork
+routines := forward libc_pthread_init alloca_cutoff pt-atfork htlfreeres
 shared-only-routines = forward
 static-only-routines = pt-atfork
 

Reject file htl/htlfreeres.c.rej:
--- htl/htlfreeres.c
+++ htl/htlfreeres.c
@@ -0,0 +1,24 @@
+/* Clean up allocated libpthread memory on demand.
+   Copyright (C) 2021 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* Free libpthread.so resources.
+   Note: Caller ensures we are called only once.  */
+void
+__libpthread_freeres (void)
+{
+}