Update/gnulib 2026 03 (#2247)

* Sync with the 202601-stable Gnulib code (4a3650d887)

* Ignore more deps stuff in gnulib

* Remove autogenerated gnulib files

* Ignore more gnulib generated headers

5 files changed, 23 insertions, 55 deletions

diff --git a/gl/glthread/lock.c b/gl/glthread/lock.c
index dace4fda..cfb9393c 100644
--- a/gl/glthread/lock.c
+++ b/gl/glthread/lock.c
@@ -1,5 +1,5 @@
 /* Locking in multithreaded situations.
-   Copyright (C) 2005-2025 Free Software Foundation, Inc.
+   Copyright (C) 2005-2026 Free Software Foundation, Inc.
 
    This file is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
@@ -255,15 +255,13 @@ glthread_recursive_lock_destroy (gl_recursive_lock_t *lock)
 #  if defined PTHREAD_RWLOCK_INITIALIZER || defined PTHREAD_RWLOCK_INITIALIZER_NP
 
 #   if !HAVE_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER
-     /* glibc with bug https://sourceware.org/bugzilla/show_bug.cgi?id=13701 */
+     /* glibc with bug https://sourceware.org/PR13701 */
 
 int
 glthread_rwlock_init_for_glibc (pthread_rwlock_t *lock)
 {
   pthread_rwlockattr_t attributes;
-  int err;
-
-  err = pthread_rwlockattr_init (&attributes);
+  int err = pthread_rwlockattr_init (&attributes);
   if (err != 0)
     return err;
   /* Note: PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP is the only value that
@@ -286,9 +284,7 @@ glthread_rwlock_init_for_glibc (pthread_rwlock_t *lock)
 int
 glthread_rwlock_init_multithreaded (gl_rwlock_t *lock)
 {
-  int err;
-
-  err = pthread_rwlock_init (&lock->rwlock, NULL);
+  int err = pthread_rwlock_init (&lock->rwlock, NULL);
   if (err != 0)
     return err;
   lock->initialized = 1;
@@ -300,9 +296,7 @@ glthread_rwlock_rdlock_multithreaded (gl_rwlock_t *lock)
 {
   if (!lock->initialized)
     {
-      int err;
-
-      err = pthread_mutex_lock (&lock->guard);
+      int err = pthread_mutex_lock (&lock->guard);
       if (err != 0)
         return err;
       if (!lock->initialized)
@@ -326,9 +320,7 @@ glthread_rwlock_wrlock_multithreaded (gl_rwlock_t *lock)
 {
   if (!lock->initialized)
     {
-      int err;
-
-      err = pthread_mutex_lock (&lock->guard);
+      int err = pthread_mutex_lock (&lock->guard);
       if (err != 0)
         return err;
       if (!lock->initialized)
@@ -358,11 +350,9 @@ glthread_rwlock_unlock_multithreaded (gl_rwlock_t *lock)
 int
 glthread_rwlock_destroy_multithreaded (gl_rwlock_t *lock)
 {
-  int err;
-
   if (!lock->initialized)
     return EINVAL;
-  err = pthread_rwlock_destroy (&lock->rwlock);
+  int err = pthread_rwlock_destroy (&lock->rwlock);
   if (err != 0)
     return err;
   lock->initialized = 0;
@@ -376,9 +366,7 @@ glthread_rwlock_destroy_multithreaded (gl_rwlock_t *lock)
 int
 glthread_rwlock_init_multithreaded (gl_rwlock_t *lock)
 {
-  int err;
-
-  err = pthread_mutex_init (&lock->lock, NULL);
+  int err = pthread_mutex_init (&lock->lock, NULL);
   if (err != 0)
     return err;
   err = pthread_cond_init (&lock->waiting_readers, NULL);
@@ -395,9 +383,7 @@ glthread_rwlock_init_multithreaded (gl_rwlock_t *lock)
 int
 glthread_rwlock_rdlock_multithreaded (gl_rwlock_t *lock)
 {
-  int err;
-
-  err = pthread_mutex_lock (&lock->lock);
+  int err = pthread_mutex_lock (&lock->lock);
   if (err != 0)
     return err;
   /* Test whether only readers are currently running, and whether the runcount
@@ -422,9 +408,7 @@ glthread_rwlock_rdlock_multithreaded (gl_rwlock_t *lock)
 int
 glthread_rwlock_wrlock_multithreaded (gl_rwlock_t *lock)
 {
-  int err;
-
-  err = pthread_mutex_lock (&lock->lock);
+  int err = pthread_mutex_lock (&lock->lock);
   if (err != 0)
     return err;
   /* Test whether no readers or writers are currently running.  */
@@ -449,9 +433,7 @@ glthread_rwlock_wrlock_multithreaded (gl_rwlock_t *lock)
 int
 glthread_rwlock_unlock_multithreaded (gl_rwlock_t *lock)
 {
-  int err;
-
-  err = pthread_mutex_lock (&lock->lock);
+  int err = pthread_mutex_lock (&lock->lock);
   if (err != 0)
     return err;
   if (lock->runcount < 0)
@@ -505,9 +487,7 @@ glthread_rwlock_unlock_multithreaded (gl_rwlock_t *lock)
 int
 glthread_rwlock_destroy_multithreaded (gl_rwlock_t *lock)
 {
-  int err;
-
-  err = pthread_mutex_destroy (&lock->lock);
+  int err = pthread_mutex_destroy (&lock->lock);
   if (err != 0)
     return err;
   err = pthread_cond_destroy (&lock->waiting_readers);
@@ -531,9 +511,7 @@ int
 glthread_recursive_lock_init_multithreaded (gl_recursive_lock_t *lock)
 {
   pthread_mutexattr_t attributes;
-  int err;
-
-  err = pthread_mutexattr_init (&attributes);
+  int err = pthread_mutexattr_init (&attributes);
   if (err != 0)
     return err;
   err = pthread_mutexattr_settype (&attributes, PTHREAD_MUTEX_RECURSIVE);
@@ -560,9 +538,7 @@ int
 glthread_recursive_lock_init_multithreaded (gl_recursive_lock_t *lock)
 {
   pthread_mutexattr_t attributes;
-  int err;
-
-  err = pthread_mutexattr_init (&attributes);
+  int err = pthread_mutexattr_init (&attributes);
   if (err != 0)
     return err;
   err = pthread_mutexattr_settype (&attributes, PTHREAD_MUTEX_RECURSIVE);
@@ -589,9 +565,7 @@ glthread_recursive_lock_lock_multithreaded (gl_recursive_lock_t *lock)
 {
   if (!lock->initialized)
     {
-      int err;
-
-      err = pthread_mutex_lock (&lock->guard);
+      int err = pthread_mutex_lock (&lock->guard);
       if (err != 0)
         return err;
       if (!lock->initialized)
@@ -621,11 +595,9 @@ glthread_recursive_lock_unlock_multithreaded (gl_recursive_lock_t *lock)
 int
 glthread_recursive_lock_destroy_multithreaded (gl_recursive_lock_t *lock)
 {
-  int err;
-
   if (!lock->initialized)
     return EINVAL;
-  err = pthread_mutex_destroy (&lock->recmutex);
+  int err = pthread_mutex_destroy (&lock->recmutex);
   if (err != 0)
     return err;
   lock->initialized = 0;
@@ -639,9 +611,7 @@ glthread_recursive_lock_destroy_multithreaded (gl_recursive_lock_t *lock)
 int
 glthread_recursive_lock_init_multithreaded (gl_recursive_lock_t *lock)
 {
-  int err;
-
-  err = pthread_mutex_init (&lock->mutex, NULL);
+  int err = pthread_mutex_init (&lock->mutex, NULL);
   if (err != 0)
     return err;
   lock->owner = (pthread_t) 0;
@@ -655,9 +625,7 @@ glthread_recursive_lock_lock_multithreaded (gl_recursive_lock_t *lock)
   pthread_t self = pthread_self ();
   if (lock->owner != self)
     {
-      int err;
-
-      err = pthread_mutex_lock (&lock->mutex);
+      int err = pthread_mutex_lock (&lock->mutex);
       if (err != 0)
         return err;
       lock->owner = self;
diff --git a/gl/glthread/lock.h b/gl/glthread/lock.h
index d6ccc202..d8190b6c 100644
--- a/gl/glthread/lock.h
+++ b/gl/glthread/lock.h
@@ -1,5 +1,5 @@
 /* Locking in multithreaded situations.
-   Copyright (C) 2005-2025 Free Software Foundation, Inc.
+   Copyright (C) 2005-2026 Free Software Foundation, Inc.
 
    This file is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
@@ -239,7 +239,7 @@ typedef pthread_rwlock_t gl_rwlock_t;
 #    endif
 #    define glthread_rwlock_init(LOCK) \
        (pthread_in_use () ? pthread_rwlock_init (LOCK, NULL) : 0)
-#   else /* glibc with bug https://sourceware.org/bugzilla/show_bug.cgi?id=13701 */
+#   else /* glibc with bug https://sourceware.org/PR13701 */
 #    define gl_rwlock_initializer \
        PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP
 #    define glthread_rwlock_init(LOCK) \
diff --git a/gl/glthread/once.c b/gl/glthread/once.c
index 53211af8..b72a4a20 100644
--- a/gl/glthread/once.c
+++ b/gl/glthread/once.c
@@ -1,5 +1,5 @@
 /* Once-only initialization in multithreaded situations.
-   Copyright (C) 2005-2025 Free Software Foundation, Inc.
+   Copyright (C) 2005-2026 Free Software Foundation, Inc.
 
    This file is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
diff --git a/gl/glthread/once.h b/gl/glthread/once.h
index 943bd7a2..b6d9ab40 100644
--- a/gl/glthread/once.h
+++ b/gl/glthread/once.h
@@ -1,5 +1,5 @@
 /* Once-only initialization in multithreaded situations.
-   Copyright (C) 2005-2025 Free Software Foundation, Inc.
+   Copyright (C) 2005-2026 Free Software Foundation, Inc.
 
    This file is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
diff --git a/gl/glthread/threadlib.c b/gl/glthread/threadlib.c
index a6f7688b..5c0ba1f4 100644
--- a/gl/glthread/threadlib.c
+++ b/gl/glthread/threadlib.c
@@ -1,5 +1,5 @@
 /* Multithreading primitives.
-   Copyright (C) 2005-2025 Free Software Foundation, Inc.
+   Copyright (C) 2005-2026 Free Software Foundation, Inc.
 
    This file is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as