1 files changed, 10 insertions, 6 deletions

diff --git a/gl/mktime-internal.h b/gl/mktime-internal.h
index 0693aaf1..215be914 100644
--- a/gl/mktime-internal.h
+++ b/gl/mktime-internal.h
@@ -1,5 +1,5 @@
 /* Internals of mktime and related functions
-   Copyright 2016-2024 Free Software Foundation, Inc.
+   Copyright 2016-2025 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Paul Eggert <eggert@cs.ucla.edu>.
 
@@ -19,6 +19,9 @@
 
 #ifndef _LIBC
 # include <time.h>
+# define __libc_lock_lock(lock) ((void) 0)
+# define __libc_lock_unlock(lock) ((void) 0)
+# define __tzset_unlocked() tzset ()
 #endif
 
 /* mktime_offset_t is a signed type wide enough to hold a UTC offset
@@ -71,9 +74,10 @@ typedef int mktime_offset_t;
 #endif
 
 /* Subroutine of mktime.  Return the time_t representation of TP and
-   normalize TP, given that a struct tm * maps to a time_t as performed
-   by FUNC.  Record next guess for localtime-gmtime offset in *OFFSET.  */
-extern __time64_t __mktime_internal (struct tm *tp,
-                                     struct tm *(*func) (__time64_t const *,
-                                                         struct tm *),
+   normalize TP, given that a struct tm * maps to a time_t.  If
+   LOCAL, the mapping is performed by localtime_r, otherwise by gmtime_r.
+   Record next guess for localtime-gmtime offset in *OFFSET.
+
+   If _LIBC, the caller must lock __tzset_lock.  */
+extern __time64_t __mktime_internal (struct tm *tp, bool local,
                                      mktime_offset_t *offset) attribute_hidden;