[monitoring-plugins] Remove sha1 and add sha256

RincewindsHat git at monitoring-plugins.org
Fri Feb 10 11:50:12 CET 2023
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 Module: monitoring-plugins
 Branch: master
 Commit: cfa0738187c51eeb897133d1699b35ddd8e96fd5
 Author: RincewindsHat <12514511+RincewindsHat at users.noreply.github.com>
   Date: Tue Jan 31 15:13:12 2023 +0100
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=cfa0738

Remove sha1 and add sha256

---

 gl/Makefile.am                                     |   17 +-
 gl/inttypes.h                                      | 1509 ++++++++++++++++++++
 gl/limits.h                                        |  132 ++
 gl/m4/gnulib-cache.m4                              |    6 +-
 gl/m4/gnulib-comp.m4                               |   14 +-
 gl/m4/{sha1.m4 => sha256.m4}                       |   12 +-
 gl/malloc/.deps/.dirstamp                          |    0
 gl/malloc/.deps/libgnu_a-dynarray-skeleton.Po      |    1 +
 gl/malloc/.deps/libgnu_a-dynarray_at_failure.Po    |  142 ++
 .../.deps/libgnu_a-dynarray_emplace_enlarge.Po     |  142 ++
 gl/malloc/.deps/libgnu_a-dynarray_finalize.Po      |  119 ++
 gl/malloc/.deps/libgnu_a-dynarray_resize.Po        |  141 ++
 gl/malloc/.deps/libgnu_a-dynarray_resize_clear.Po  |   52 +
 gl/malloc/.dirstamp                                |    0
 gl/malloc/dynarray-skeleton.gl.h                   |  529 +++++++
 gl/malloc/dynarray.gl.h                            |  173 +++
 gl/sha1.c                                          |  360 -----
 gl/{sha1-stream.c => sha256-stream.c}              |   54 +-
 gl/sha256.c                                        |  432 ++++++
 gl/{sha1.h => sha256.h}                            |   70 +-
 gl/stdckdint.h                                     |   36 +
 21 files changed, 3507 insertions(+), 434 deletions(-)

diff --git a/gl/Makefile.am b/gl/Makefile.am
index db12446..3865bf7 100644
--- a/gl/Makefile.am
+++ b/gl/Makefile.am
@@ -33,8 +33,9 @@
 #  --no-libtool \
 #  --macro-prefix=gl \
 #  --no-vc-files \
+#  --no-vc-files \
 #  base64 \
-#  crypto/sha1 \
+#  crypto/sha256 \
 #  dirname \
 #  environ \
 #  floorf \
@@ -272,19 +273,19 @@ EXTRA_DIST += af_alg.h sys-limits.h
 
 ## end   gnulib module crypto/af_alg
 
-## begin gnulib module crypto/sha1
+## begin gnulib module crypto/sha256
 
-libgnu_a_SOURCES += sha1-stream.c
+libgnu_a_SOURCES += sha256-stream.c
 
-## end   gnulib module crypto/sha1
+## end   gnulib module crypto/sha256
 
-## begin gnulib module crypto/sha1-buffer
+## begin gnulib module crypto/sha256-buffer
 
-libgnu_a_SOURCES += sha1.c
+libgnu_a_SOURCES += sha256.c
 
-EXTRA_DIST += gl_openssl.h sha1.h
+EXTRA_DIST += gl_openssl.h sha256.h
 
-## end   gnulib module crypto/sha1-buffer
+## end   gnulib module crypto/sha256-buffer
 
 ## begin gnulib module dirname
 
diff --git a/gl/inttypes.h b/gl/inttypes.h
new file mode 100644
index 0000000..697e00e
--- /dev/null
+++ b/gl/inttypes.h
@@ -0,0 +1,1509 @@
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* Copyright (C) 2006-2023 Free Software Foundation, Inc.
+   Written by Paul Eggert, Bruno Haible, Derek Price.
+   This file is part of gnulib.
+
+   This file 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.
+
+   This file 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/*
+ * ISO C 99 <inttypes.h> for platforms that lack it.
+ * <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/inttypes.h.html>
+ */
+
+#if __GNUC__ >= 3
+#pragma GCC system_header
+#endif
+
+
+/* Include the original <inttypes.h> if it exists, and if this file
+   has not been included yet or if this file includes gnulib stdint.h
+   which in turn includes this file.
+   The include_next requires a split double-inclusion guard.  */
+#if ! defined INTTYPES_H || defined _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
+# if 1
+
+   /* Some pre-C++11 <stdint.h> implementations need this.  */
+#  if defined __cplusplus && ! defined __STDC_FORMAT_MACROS
+#   define __STDC_FORMAT_MACROS 1
+#  endif
+
+#  include_next <inttypes.h>
+
+#  define _GL_FINISHED_INCLUDING_SYSTEM_INTTYPES_H
+# endif
+#endif
+
+#if ! defined INTTYPES_H && ! defined _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
+#define INTTYPES_H
+
+/* Include <stdint.h> or the gnulib replacement.
+   But avoid namespace pollution on glibc systems.  */
+#ifndef __GLIBC__
+# include <stdint.h>
+#endif
+/* Get CHAR_BIT, INT_MAX, LONG_MAX, etc.  */
+#include <limits.h>
+/* On mingw, __USE_MINGW_ANSI_STDIO only works if <stdio.h> is also included */
+#if defined _WIN32 && ! defined __CYGWIN__
+# include <stdio.h>
+#endif
+
+#if !(INT_MAX == 0x7fffffff && INT_MIN + INT_MAX == -1)
+# error "This file assumes that 'int' is 32-bit two's complement. Please report your platform and compiler to <bug-gnulib at gnu.org>."
+#endif
+
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
+/* C++ compatible function declaration macros.
+   Copyright (C) 2010-2023 Free Software Foundation, Inc.
+
+   This program 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 of the License, or
+   (at your option) any later version.
+
+   This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#ifndef _GL_CXXDEFS_H
+#define _GL_CXXDEFS_H
+
+/* Begin/end the GNULIB_NAMESPACE namespace.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
+# define _GL_END_NAMESPACE }
+#else
+# define _GL_BEGIN_NAMESPACE
+# define _GL_END_NAMESPACE
+#endif
+
+/* The three most frequent use cases of these macros are:
+
+   * For providing a substitute for a function that is missing on some
+     platforms, but is declared and works fine on the platforms on which
+     it exists:
+
+       #if @GNULIB_FOO@
+       # if !@HAVE_FOO@
+       _GL_FUNCDECL_SYS (foo, ...);
+       # endif
+       _GL_CXXALIAS_SYS (foo, ...);
+       _GL_CXXALIASWARN (foo);
+       #elif defined GNULIB_POSIXCHECK
+       ...
+       #endif
+
+   * For providing a replacement for a function that exists on all platforms,
+     but is broken/insufficient and needs to be replaced on some platforms:
+
+       #if @GNULIB_FOO@
+       # if @REPLACE_FOO@
+       #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+       #   undef foo
+       #   define foo rpl_foo
+       #  endif
+       _GL_FUNCDECL_RPL (foo, ...);
+       _GL_CXXALIAS_RPL (foo, ...);
+       # else
+       _GL_CXXALIAS_SYS (foo, ...);
+       # endif
+       _GL_CXXALIASWARN (foo);
+       #elif defined GNULIB_POSIXCHECK
+       ...
+       #endif
+
+   * For providing a replacement for a function that exists on some platforms
+     but is broken/insufficient and needs to be replaced on some of them and
+     is additionally either missing or undeclared on some other platforms:
+
+       #if @GNULIB_FOO@
+       # if @REPLACE_FOO@
+       #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+       #   undef foo
+       #   define foo rpl_foo
+       #  endif
+       _GL_FUNCDECL_RPL (foo, ...);
+       _GL_CXXALIAS_RPL (foo, ...);
+       # else
+       #  if !@HAVE_FOO@   or   if !@HAVE_DECL_FOO@
+       _GL_FUNCDECL_SYS (foo, ...);
+       #  endif
+       _GL_CXXALIAS_SYS (foo, ...);
+       # endif
+       _GL_CXXALIASWARN (foo);
+       #elif defined GNULIB_POSIXCHECK
+       ...
+       #endif
+*/
+
+/* _GL_EXTERN_C declaration;
+   performs the declaration with C linkage.  */
+#if defined __cplusplus
+# define _GL_EXTERN_C extern "C"
+#else
+# define _GL_EXTERN_C extern
+#endif
+
+/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
+   declares a replacement function, named rpl_func, with the given prototype,
+   consisting of return type, parameters, and attributes.
+   Example:
+     _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
+                                  _GL_ARG_NONNULL ((1)));
+ */
+#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
+  _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
+#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
+  _GL_EXTERN_C rettype rpl_func parameters_and_attributes
+
+/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
+   declares the system function, named func, with the given prototype,
+   consisting of return type, parameters, and attributes.
+   Example:
+     _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
+                                  _GL_ARG_NONNULL ((1)));
+ */
+#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
+  _GL_EXTERN_C rettype func parameters_and_attributes
+
+/* _GL_CXXALIAS_RPL (func, rettype, parameters);
+   declares a C++ alias called GNULIB_NAMESPACE::func
+   that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
+   Example:
+     _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
+
+   Wrapping rpl_func in an object with an inline conversion operator
+   avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
+   actually used in the program.  */
+#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
+  _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
+    namespace GNULIB_NAMESPACE                                \
+    {                                                         \
+      static const struct _gl_ ## func ## _wrapper            \
+      {                                                       \
+        typedef rettype (*type) parameters;                   \
+                                                              \
+        inline operator type () const                         \
+        {                                                     \
+          return ::rpl_func;                                  \
+        }                                                     \
+      } func = {};                                            \
+    }                                                         \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#else
+# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIAS_MDA (func, rettype, parameters);
+   is to be used when func is a Microsoft deprecated alias, on native Windows.
+   It declares a C++ alias called GNULIB_NAMESPACE::func
+   that redirects to _func, if GNULIB_NAMESPACE is defined.
+   Example:
+     _GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
+ */
+#define _GL_CXXALIAS_MDA(func,rettype,parameters) \
+  _GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters)
+
+/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
+   is like  _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
+   except that the C function rpl_func may have a slightly different
+   declaration.  A cast is used to silence the "invalid conversion" error
+   that would otherwise occur.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
+    namespace GNULIB_NAMESPACE                                     \
+    {                                                              \
+      static const struct _gl_ ## func ## _wrapper                 \
+      {                                                            \
+        typedef rettype (*type) parameters;                        \
+                                                                   \
+        inline operator type () const                              \
+        {                                                          \
+          return reinterpret_cast<type>(::rpl_func);               \
+        }                                                          \
+      } func = {};                                                 \
+    }                                                              \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#else
+# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIAS_MDA_CAST (func, rettype, parameters);
+   is like  _GL_CXXALIAS_MDA (func, rettype, parameters);
+   except that the C function func may have a slightly different declaration.
+   A cast is used to silence the "invalid conversion" error that would
+   otherwise occur.  */
+#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \
+  _GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters)
+
+/* _GL_CXXALIAS_SYS (func, rettype, parameters);
+   declares a C++ alias called GNULIB_NAMESPACE::func
+   that redirects to the system provided function func, if GNULIB_NAMESPACE
+   is defined.
+   Example:
+     _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
+
+   Wrapping func in an object with an inline conversion operator
+   avoids a reference to func unless GNULIB_NAMESPACE::func is
+   actually used in the program.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIAS_SYS(func,rettype,parameters)            \
+    namespace GNULIB_NAMESPACE                                \
+    {                                                         \
+      static const struct _gl_ ## func ## _wrapper            \
+      {                                                       \
+        typedef rettype (*type) parameters;                   \
+                                                              \
+        inline operator type () const                         \
+        {                                                     \
+          return ::func;                                      \
+        }                                                     \
+      } func = {};                                            \
+    }                                                         \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#else
+# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
+   is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
+   except that the C function func may have a slightly different declaration.
+   A cast is used to silence the "invalid conversion" error that would
+   otherwise occur.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
+    namespace GNULIB_NAMESPACE                          \
+    {                                                   \
+      static const struct _gl_ ## func ## _wrapper      \
+      {                                                 \
+        typedef rettype (*type) parameters;             \
+                                                        \
+        inline operator type () const                   \
+        {                                               \
+          return reinterpret_cast<type>(::func);        \
+        }                                               \
+      } func = {};                                      \
+    }                                                   \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#else
+# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
+   is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
+   except that the C function is picked among a set of overloaded functions,
+   namely the one with rettype2 and parameters2.  Two consecutive casts
+   are used to silence the "cannot find a match" and "invalid conversion"
+   errors that would otherwise occur.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+  /* The outer cast must be a reinterpret_cast.
+     The inner cast: When the function is defined as a set of overloaded
+     functions, it works as a static_cast<>, choosing the designated variant.
+     When the function is defined as a single variant, it works as a
+     reinterpret_cast<>. The parenthesized cast syntax works both ways.  */
+# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
+    namespace GNULIB_NAMESPACE                                                \
+    {                                                                         \
+      static const struct _gl_ ## func ## _wrapper                            \
+      {                                                                       \
+        typedef rettype (*type) parameters;                                   \
+                                                                              \
+        inline operator type () const                                         \
+        {                                                                     \
+          return reinterpret_cast<type>((rettype2 (*) parameters2)(::func));  \
+        }                                                                     \
+      } func = {};                                                            \
+    }                                                                         \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#else
+# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIASWARN (func);
+   causes a warning to be emitted when ::func is used but not when
+   GNULIB_NAMESPACE::func is used.  func must be defined without overloaded
+   variants.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIASWARN(func) \
+   _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
+# define _GL_CXXALIASWARN_1(func,namespace) \
+   _GL_CXXALIASWARN_2 (func, namespace)
+/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+   we enable the warning only when not optimizing.  */
+# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
+#  define _GL_CXXALIASWARN_2(func,namespace) \
+    _GL_WARN_ON_USE (func, \
+                     "The symbol ::" #func " refers to the system function. " \
+                     "Use " #namespace "::" #func " instead.")
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
+#  define _GL_CXXALIASWARN_2(func,namespace) \
+     extern __typeof__ (func) func
+# else
+#  define _GL_CXXALIASWARN_2(func,namespace) \
+     _GL_EXTERN_C int _gl_cxxalias_dummy
+# endif
+#else
+# define _GL_CXXALIASWARN(func) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
+   causes a warning to be emitted when the given overloaded variant of ::func
+   is used but not when GNULIB_NAMESPACE::func is used.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
+   _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
+                        GNULIB_NAMESPACE)
+# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
+   _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
+/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+   we enable the warning only when not optimizing.  */
+# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
+#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
+    _GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
+                         "The symbol ::" #func " refers to the system function. " \
+                         "Use " #namespace "::" #func " instead.")
+# else
+#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
+     _GL_EXTERN_C int _gl_cxxalias_dummy
+# endif
+#else
+# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+#endif /* _GL_CXXDEFS_H */
+
+/* The definition of _GL_ARG_NONNULL is copied here.  */
+/* A C macro for declaring that specific arguments must not be NULL.
+   Copyright (C) 2009-2023 Free Software Foundation, Inc.
+
+   This program 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 of the License, or
+   (at your option) any later version.
+
+   This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
+   that the values passed as arguments n, ..., m must be non-NULL pointers.
+   n = 1 stands for the first argument, n = 2 for the second argument etc.  */
+#ifndef _GL_ARG_NONNULL
+# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
+#  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
+# else
+#  define _GL_ARG_NONNULL(params)
+# endif
+#endif
+
+/* The definition of _GL_WARN_ON_USE is copied here.  */
+/* A C macro for emitting warnings if a function is used.
+   Copyright (C) 2010-2023 Free Software Foundation, Inc.
+
+   This program 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 of the License, or
+   (at your option) any later version.
+
+   This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* _GL_WARN_ON_USE (function, "literal string") issues a declaration
+   for FUNCTION which will then trigger a compiler warning containing
+   the text of "literal string" anywhere that function is called, if
+   supported by the compiler.  If the compiler does not support this
+   feature, the macro expands to an unused extern declaration.
+
+   _GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the
+   attribute used in _GL_WARN_ON_USE.  If the compiler does not support
+   this feature, it expands to empty.
+
+   These macros are useful for marking a function as a potential
+   portability trap, with the intent that "literal string" include
+   instructions on the replacement function that should be used
+   instead.
+   _GL_WARN_ON_USE is for functions with 'extern' linkage.
+   _GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline'
+   linkage.
+
+   However, one of the reasons that a function is a portability trap is
+   if it has the wrong signature.  Declaring FUNCTION with a different
+   signature in C is a compilation error, so this macro must use the
+   same type as any existing declaration so that programs that avoid
+   the problematic FUNCTION do not fail to compile merely because they
+   included a header that poisoned the function.  But this implies that
+   _GL_WARN_ON_USE is only safe to use if FUNCTION is known to already
+   have a declaration.  Use of this macro implies that there must not
+   be any other macro hiding the declaration of FUNCTION; but
+   undefining FUNCTION first is part of the poisoning process anyway
+   (although for symbols that are provided only via a macro, the result
+   is a compilation error rather than a warning containing
+   "literal string").  Also note that in C++, it is only safe to use if
+   FUNCTION has no overloads.
+
+   For an example, it is possible to poison 'getline' by:
+   - adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]],
+     [getline]) in configure.ac, which potentially defines
+     HAVE_RAW_DECL_GETLINE
+   - adding this code to a header that wraps the system <stdio.h>:
+     #undef getline
+     #if HAVE_RAW_DECL_GETLINE
+     _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but"
+       "not universally present; use the gnulib module getline");
+     #endif
+
+   It is not possible to directly poison global variables.  But it is
+   possible to write a wrapper accessor function, and poison that
+   (less common usage, like &environ, will cause a compilation error
+   rather than issue the nice warning, but the end result of informing
+   the developer about their portability problem is still achieved):
+     #if HAVE_RAW_DECL_ENVIRON
+     static char ***
+     rpl_environ (void) { return &environ; }
+     _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
+     # undef environ
+     # define environ (*rpl_environ ())
+     #endif
+   or better (avoiding contradictory use of 'static' and 'extern'):
+     #if HAVE_RAW_DECL_ENVIRON
+     static char ***
+     _GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared")
+     rpl_environ (void) { return &environ; }
+     # undef environ
+     # define environ (*rpl_environ ())
+     #endif
+   */
+#ifndef _GL_WARN_ON_USE
+
+# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
+/* A compiler attribute is available in gcc versions 4.3.0 and later.  */
+#  define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C __typeof__ (function) function __attribute__ ((__warning__ (message)))
+#  define _GL_WARN_ON_USE_ATTRIBUTE(message) \
+  __attribute__ ((__warning__ (message)))
+# elif __clang_major__ >= 4
+/* Another compiler attribute is available in clang.  */
+#  define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C __typeof__ (function) function \
+  __attribute__ ((__diagnose_if__ (1, message, "warning")))
+#  define _GL_WARN_ON_USE_ATTRIBUTE(message) \
+  __attribute__ ((__diagnose_if__ (1, message, "warning")))
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
+/* Verify the existence of the function.  */
+#  define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C __typeof__ (function) function
+#  define _GL_WARN_ON_USE_ATTRIBUTE(message)
+# else /* Unsupported.  */
+#  define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+#  define _GL_WARN_ON_USE_ATTRIBUTE(message)
+# endif
+#endif
+
+/* _GL_WARN_ON_USE_CXX (function, rettype_gcc, rettype_clang, parameters_and_attributes, "message")
+   is like _GL_WARN_ON_USE (function, "message"), except that in C++ mode the
+   function is declared with the given prototype, consisting of return type,
+   parameters, and attributes.
+   This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does
+   not work in this case.  */
+#ifndef _GL_WARN_ON_USE_CXX
+# if !defined __cplusplus
+#  define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+     _GL_WARN_ON_USE (function, msg)
+# else
+#  if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
+/* A compiler attribute is available in gcc versions 4.3.0 and later.  */
+#   define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_gcc function parameters_and_attributes \
+  __attribute__ ((__warning__ (msg)))
+#  elif __clang_major__ >= 4
+/* Another compiler attribute is available in clang.  */
+#   define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_clang function parameters_and_attributes \
+  __attribute__ ((__diagnose_if__ (1, msg, "warning")))
+#  elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
+/* Verify the existence of the function.  */
+#   define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_gcc function parameters_and_attributes
+#  else /* Unsupported.  */
+#   define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+#  endif
+# endif
+#endif
+
+/* _GL_WARN_EXTERN_C declaration;
+   performs the declaration with C linkage.  */
+#ifndef _GL_WARN_EXTERN_C
+# if defined __cplusplus
+#  define _GL_WARN_EXTERN_C extern "C"
+# else
+#  define _GL_WARN_EXTERN_C extern
+# endif
+#endif
+
+/* 7.8.1 Macros for format specifiers */
+
+#if defined _TNS_R_TARGET
+   /* Tandem NonStop R series and compatible platforms released before
+      July 2005 support %Ld but not %lld.  */
+# define _LONG_LONG_FORMAT_PREFIX "L"
+#else
+# define _LONG_LONG_FORMAT_PREFIX "ll"
+#endif
+
+#if !defined PRId8
+# ifdef INT8_MAX
+#  define PRId8 "d"
+# endif
+#endif
+#if !defined PRIi8
+# ifdef INT8_MAX
+#  define PRIi8 "i"
+# endif
+#endif
+#if !defined PRIo8
+# ifdef UINT8_MAX
+#  define PRIo8 "o"
+# endif
+#endif
+#if !defined PRIu8
+# ifdef UINT8_MAX
+#  define PRIu8 "u"
+# endif
+#endif
+#if !defined PRIx8
+# ifdef UINT8_MAX
+#  define PRIx8 "x"
+# endif
+#endif
+#if !defined PRIX8
+# ifdef UINT8_MAX
+#  define PRIX8 "X"
+# endif
+#endif
+#if !defined PRId16
+# ifdef INT16_MAX
+#  define PRId16 "d"
+# endif
+#endif
+#if !defined PRIi16
+# ifdef INT16_MAX
+#  define PRIi16 "i"
+# endif
+#endif
+#if !defined PRIo16
+# ifdef UINT16_MAX
+#  define PRIo16 "o"
+# endif
+#endif
+#if !defined PRIu16
+# ifdef UINT16_MAX
+#  define PRIu16 "u"
+# endif
+#endif
+#if !defined PRIx16
+# ifdef UINT16_MAX
+#  define PRIx16 "x"
+# endif
+#endif
+#if !defined PRIX16
+# ifdef UINT16_MAX
+#  define PRIX16 "X"
+# endif
+#endif
+#if !defined PRId32
+# ifdef INT32_MAX
+#  define PRId32 "d"
+# endif
+#endif
+#if !defined PRIi32
+# ifdef INT32_MAX
+#  define PRIi32 "i"
+# endif
+#endif
+#if !defined PRIo32
+# ifdef UINT32_MAX
+#  define PRIo32 "o"
+# endif
+#endif
+#if !defined PRIu32
+# ifdef UINT32_MAX
+#  define PRIu32 "u"
+# endif
+#endif
+#if !defined PRIx32
+# ifdef UINT32_MAX
+#  define PRIx32 "x"
+# endif
+#endif
+#if !defined PRIX32
+# ifdef UINT32_MAX
+#  define PRIX32 "X"
+# endif
+#endif
+#ifdef INT64_MAX
+# if (0 ? defined _LP64 : defined _LP64)
+#  define _PRI64_PREFIX "l"
+# elif defined _MSC_VER || defined __MINGW32__
+#  define _PRI64_PREFIX "I64"
+# elif LONG_MAX >> 30 == 1
+#  define _PRI64_PREFIX _LONG_LONG_FORMAT_PREFIX
+# endif
+# if !defined PRId64
+#  define PRId64 _PRI64_PREFIX "d"
+# endif
+# if !defined PRIi64
+#  define PRIi64 _PRI64_PREFIX "i"
+# endif
+#endif
+#ifdef UINT64_MAX
+# if (0 ? defined _LP64 : defined _LP64)
+#  define _PRIu64_PREFIX "l"
+# elif defined _MSC_VER || defined __MINGW32__
+#  define _PRIu64_PREFIX "I64"
+# elif ULONG_MAX >> 31 == 1
+#  define _PRIu64_PREFIX _LONG_LONG_FORMAT_PREFIX
+# endif
+# if !defined PRIo64
+#  define PRIo64 _PRIu64_PREFIX "o"
+# endif
+# if !defined PRIu64
+#  define PRIu64 _PRIu64_PREFIX "u"
+# endif
+# if !defined PRIx64
+#  define PRIx64 _PRIu64_PREFIX "x"
+# endif
+# if !defined PRIX64
+#  define PRIX64 _PRIu64_PREFIX "X"
+# endif
+#endif
+
+#if !defined PRIdLEAST8
+# define PRIdLEAST8 "d"
+#endif
+#if !defined PRIiLEAST8
+# define PRIiLEAST8 "i"
+#endif
+#if !defined PRIoLEAST8
+# define PRIoLEAST8 "o"
+#endif
+#if !defined PRIuLEAST8
+# define PRIuLEAST8 "u"
+#endif
+#if !defined PRIxLEAST8
+# define PRIxLEAST8 "x"
+#endif
+#if !defined PRIXLEAST8
+# define PRIXLEAST8 "X"
+#endif
+#if !defined PRIdLEAST16
+# define PRIdLEAST16 "d"
+#endif
+#if !defined PRIiLEAST16
+# define PRIiLEAST16 "i"
+#endif
+#if !defined PRIoLEAST16
+# define PRIoLEAST16 "o"
+#endif
+#if !defined PRIuLEAST16
+# define PRIuLEAST16 "u"
+#endif
+#if !defined PRIxLEAST16
+# define PRIxLEAST16 "x"
+#endif
+#if !defined PRIXLEAST16
+# define PRIXLEAST16 "X"
+#endif
+#if !defined PRIdLEAST32
+# define PRIdLEAST32 "d"
+#endif
+#if !defined PRIiLEAST32
+# define PRIiLEAST32 "i"
+#endif
+#if !defined PRIoLEAST32
+# define PRIoLEAST32 "o"
+#endif
+#if !defined PRIuLEAST32
+# define PRIuLEAST32 "u"
+#endif
+#if !defined PRIxLEAST32
+# define PRIxLEAST32 "x"
+#endif
+#if !defined PRIXLEAST32
+# define PRIXLEAST32 "X"
+#endif
+#ifdef INT64_MAX
+# if !defined PRIdLEAST64
+#  define PRIdLEAST64 PRId64
+# endif
+# if !defined PRIiLEAST64
+#  define PRIiLEAST64 PRIi64
+# endif
+#endif
+#ifdef UINT64_MAX
+# if !defined PRIoLEAST64
+#  define PRIoLEAST64 PRIo64
+# endif
+# if !defined PRIuLEAST64
+#  define PRIuLEAST64 PRIu64
+# endif
+# if !defined PRIxLEAST64
+#  define PRIxLEAST64 PRIx64
+# endif
+# if !defined PRIXLEAST64
+#  define PRIXLEAST64 PRIX64
+# endif
+#endif
+
+#if !defined PRIdFAST8
+# if INT_FAST8_MAX > INT32_MAX
+#  define PRIdFAST8 PRId64
+# else
+#  define PRIdFAST8 "d"
+# endif
+#endif
+#if !defined PRIiFAST8
+# if INT_FAST8_MAX > INT32_MAX
+#  define PRIiFAST8 PRIi64
+# else
+#  define PRIiFAST8 "i"
+# endif
+#endif
+#if !defined PRIoFAST8
+# if UINT_FAST8_MAX > UINT32_MAX
+#  define PRIoFAST8 PRIo64
+# else
+#  define PRIoFAST8 "o"
+# endif
+#endif
+#if !defined PRIuFAST8
+# if UINT_FAST8_MAX > UINT32_MAX
+#  define PRIuFAST8 PRIu64
+# else
+#  define PRIuFAST8 "u"
+# endif
+#endif
+#if !defined PRIxFAST8
+# if UINT_FAST8_MAX > UINT32_MAX
+#  define PRIxFAST8 PRIx64
+# else
+#  define PRIxFAST8 "x"
+# endif
+#endif
+#if !defined PRIXFAST8
+# if UINT_FAST8_MAX > UINT32_MAX
+#  define PRIXFAST8 PRIX64
+# else
+#  define PRIXFAST8 "X"
+# endif
+#endif
+#if !defined PRIdFAST16
+# if INT_FAST16_MAX > INT32_MAX
+#  define PRIdFAST16 PRId64
+# else
+#  define PRIdFAST16 "d"
+# endif
+#endif
+#if !defined PRIiFAST16
+# if INT_FAST16_MAX > INT32_MAX
+#  define PRIiFAST16 PRIi64
+# else
+#  define PRIiFAST16 "i"
+# endif
+#endif
+#if !defined PRIoFAST16
+# if UINT_FAST16_MAX > UINT32_MAX
+#  define PRIoFAST16 PRIo64
+# else
+#  define PRIoFAST16 "o"
+# endif
+#endif
+#if !defined PRIuFAST16
+# if UINT_FAST16_MAX > UINT32_MAX
+#  define PRIuFAST16 PRIu64
+# else
+#  define PRIuFAST16 "u"
+# endif
+#endif
+#if !defined PRIxFAST16
+# if UINT_FAST16_MAX > UINT32_MAX
+#  define PRIxFAST16 PRIx64
+# else
+#  define PRIxFAST16 "x"
+# endif
+#endif
+#if !defined PRIXFAST16
+# if UINT_FAST16_MAX > UINT32_MAX
+#  define PRIXFAST16 PRIX64
+# else
+#  define PRIXFAST16 "X"
+# endif
+#endif
+#if !defined PRIdFAST32
+# if INT_FAST32_MAX > INT32_MAX
+#  define PRIdFAST32 PRId64
+# else
+#  define PRIdFAST32 "d"
+# endif
+#endif
+#if !defined PRIiFAST32
+# if INT_FAST32_MAX > INT32_MAX
+#  define PRIiFAST32 PRIi64
+# else
+#  define PRIiFAST32 "i"
+# endif
+#endif
+#if !defined PRIoFAST32
+# if UINT_FAST32_MAX > UINT32_MAX
+#  define PRIoFAST32 PRIo64
+# else
+#  define PRIoFAST32 "o"
+# endif
+#endif
+#if !defined PRIuFAST32
+# if UINT_FAST32_MAX > UINT32_MAX
+#  define PRIuFAST32 PRIu64
+# else
+#  define PRIuFAST32 "u"
+# endif
+#endif
+#if !defined PRIxFAST32
+# if UINT_FAST32_MAX > UINT32_MAX
+#  define PRIxFAST32 PRIx64
+# else
+#  define PRIxFAST32 "x"
+# endif
+#endif
+#if !defined PRIXFAST32
+# if UINT_FAST32_MAX > UINT32_MAX
+#  define PRIXFAST32 PRIX64
+# else
+#  define PRIXFAST32 "X"
+# endif
+#endif
+#ifdef INT64_MAX
+# if !defined PRIdFAST64
+#  define PRIdFAST64 PRId64
+# endif
+# if !defined PRIiFAST64
+#  define PRIiFAST64 PRIi64
+# endif
+#endif
+#ifdef UINT64_MAX
+# if !defined PRIoFAST64
+#  define PRIoFAST64 PRIo64
+# endif
+# if !defined PRIuFAST64
+#  define PRIuFAST64 PRIu64
+# endif
+# if !defined PRIxFAST64
+#  define PRIxFAST64 PRIx64
+# endif
+# if !defined PRIXFAST64
+#  define PRIXFAST64 PRIX64
+# endif
+#endif
+
+#if !defined PRIdMAX
+# if 1
+#  define PRIdMAX PRId64
+# else
+#  define PRIdMAX "ld"
+# endif
+#endif
+#if !defined PRIiMAX
+# if 1
+#  define PRIiMAX PRIi64
+# else
+#  define PRIiMAX "li"
+# endif
+#endif
+#if !defined PRIoMAX
+# if 1
+#  define PRIoMAX PRIo64
+# else
+#  define PRIoMAX "lo"
+# endif
+#endif
+#if !defined PRIuMAX
+# if 1
+#  define PRIuMAX PRIu64
+# else
+#  define PRIuMAX "lu"
+# endif
+#endif
+#if !defined PRIxMAX
+# if 1
+#  define PRIxMAX PRIx64
+# else
+#  define PRIxMAX "lx"
+# endif
+#endif
+#if !defined PRIXMAX
+# if 1
+#  define PRIXMAX PRIX64
+# else
+#  define PRIXMAX "lX"
+# endif
+#endif
+
+#if !defined PRIdPTR
+# ifdef INTPTR_MAX
+#  define PRIdPTR __PRIPTR_PREFIX "d"
+# endif
+#endif
+#if !defined PRIiPTR
+# ifdef INTPTR_MAX
+#  define PRIiPTR __PRIPTR_PREFIX "i"
+# endif
+#endif
+#if !defined PRIoPTR
+# ifdef UINTPTR_MAX
+#  define PRIoPTR __PRIPTR_PREFIX "o"
+# endif
+#endif
+#if !defined PRIuPTR
+# ifdef UINTPTR_MAX
+#  define PRIuPTR __PRIPTR_PREFIX "u"
+# endif
+#endif
+#if !defined PRIxPTR
+# ifdef UINTPTR_MAX
+#  define PRIxPTR __PRIPTR_PREFIX "x"
+# endif
+#endif
+#if !defined PRIXPTR
+# ifdef UINTPTR_MAX
+#  define PRIXPTR __PRIPTR_PREFIX "X"
+# endif
+#endif
+
+#if !defined SCNd8
+# ifdef INT8_MAX
+#  define SCNd8 "hhd"
+# endif
+#endif
+#if !defined SCNi8
+# ifdef INT8_MAX
+#  define SCNi8 "hhi"
+# endif
+#endif
+#if !defined SCNo8
+# ifdef UINT8_MAX
+#  define SCNo8 "hho"
+# endif
+#endif
+#if !defined SCNu8
+# ifdef UINT8_MAX
+#  define SCNu8 "hhu"
+# endif
+#endif
+#if !defined SCNx8
+# ifdef UINT8_MAX
+#  define SCNx8 "hhx"
+# endif
+#endif
+#if !defined SCNd16
+# ifdef INT16_MAX
+#  define SCNd16 "hd"
+# endif
+#endif
+#if !defined SCNi16
+# ifdef INT16_MAX
+#  define SCNi16 "hi"
+# endif
+#endif
+#if !defined SCNo16
+# ifdef UINT16_MAX
+#  define SCNo16 "ho"
+# endif
+#endif
+#if !defined SCNu16
+# ifdef UINT16_MAX
+#  define SCNu16 "hu"
+# endif
+#endif
+#if !defined SCNx16
+# ifdef UINT16_MAX
+#  define SCNx16 "hx"
+# endif
+#endif
+#if !defined SCNd32
+# ifdef INT32_MAX
+#  define SCNd32 "d"
+# endif
+#endif
+#if !defined SCNi32
+# ifdef INT32_MAX
+#  define SCNi32 "i"
+# endif
+#endif
+#if !defined SCNo32
+# ifdef UINT32_MAX
+#  define SCNo32 "o"
+# endif
+#endif
+#if !defined SCNu32
+# ifdef UINT32_MAX
+#  define SCNu32 "u"
+# endif
+#endif
+#if !defined SCNx32
+# ifdef UINT32_MAX
+#  define SCNx32 "x"
+# endif
+#endif
+#ifdef INT64_MAX
+# if (0 ? defined _LP64 : defined _LP64)
+#  define _SCN64_PREFIX "l"
+# elif defined _MSC_VER || defined __MINGW32__
+#  define _SCN64_PREFIX "I64"
+# elif LONG_MAX >> 30 == 1
+#  define _SCN64_PREFIX _LONG_LONG_FORMAT_PREFIX
+# endif
+# if !defined SCNd64
+#  define SCNd64 _SCN64_PREFIX "d"
+# endif
+# if !defined SCNi64
+#  define SCNi64 _SCN64_PREFIX "i"
+# endif
+#endif
+#ifdef UINT64_MAX
+# if (0 ? defined _LP64 : defined _LP64)
+#  define _SCNu64_PREFIX "l"
+# elif defined _MSC_VER || defined __MINGW32__
+#  define _SCNu64_PREFIX "I64"
+# elif ULONG_MAX >> 31 == 1
+#  define _SCNu64_PREFIX _LONG_LONG_FORMAT_PREFIX
+# endif
+# if !defined SCNo64
+#  define SCNo64 _SCNu64_PREFIX "o"
+# endif
+# if !defined SCNu64
+#  define SCNu64 _SCNu64_PREFIX "u"
+# endif
+# if !defined SCNx64
+#  define SCNx64 _SCNu64_PREFIX "x"
+# endif
+#endif
+
+#if !defined SCNdLEAST8
+# define SCNdLEAST8 "hhd"
+#endif
+#if !defined SCNiLEAST8
+# define SCNiLEAST8 "hhi"
+#endif
+#if !defined SCNoLEAST8
+# define SCNoLEAST8 "hho"
+#endif
+#if !defined SCNuLEAST8
+# define SCNuLEAST8 "hhu"
+#endif
+#if !defined SCNxLEAST8
+# define SCNxLEAST8 "hhx"
+#endif
+#if !defined SCNdLEAST16
+# define SCNdLEAST16 "hd"
+#endif
+#if !defined SCNiLEAST16
+# define SCNiLEAST16 "hi"
+#endif
+#if !defined SCNoLEAST16
+# define SCNoLEAST16 "ho"
+#endif
+#if !defined SCNuLEAST16
+# define SCNuLEAST16 "hu"
+#endif
+#if !defined SCNxLEAST16
+# define SCNxLEAST16 "hx"
+#endif
+#if !defined SCNdLEAST32
+# define SCNdLEAST32 "d"
+#endif
+#if !defined SCNiLEAST32
+# define SCNiLEAST32 "i"
+#endif
+#if !defined SCNoLEAST32
+# define SCNoLEAST32 "o"
+#endif
+#if !defined SCNuLEAST32
+# define SCNuLEAST32 "u"
+#endif
+#if !defined SCNxLEAST32
+# define SCNxLEAST32 "x"
+#endif
+#ifdef INT64_MAX
+# if !defined SCNdLEAST64
+#  define SCNdLEAST64 SCNd64
+# endif
+# if !defined SCNiLEAST64
+#  define SCNiLEAST64 SCNi64
+# endif
+#endif
+#ifdef UINT64_MAX
+# if !defined SCNoLEAST64
+#  define SCNoLEAST64 SCNo64
+# endif
+# if !defined SCNuLEAST64
+#  define SCNuLEAST64 SCNu64
+# endif
+# if !defined SCNxLEAST64
+#  define SCNxLEAST64 SCNx64
+# endif
+#endif
+
+#if !defined SCNdFAST8
+# if INT_FAST8_MAX > INT32_MAX
+#  define SCNdFAST8 SCNd64
+# elif INT_FAST8_MAX == 0x7fff
+#  define SCNdFAST8 "hd"
+# elif INT_FAST8_MAX == 0x7f
+#  define SCNdFAST8 "hhd"
+# else
+#  define SCNdFAST8 "d"
+# endif
+#endif
+#if !defined SCNiFAST8
+# if INT_FAST8_MAX > INT32_MAX
+#  define SCNiFAST8 SCNi64
+# elif INT_FAST8_MAX == 0x7fff
+#  define SCNiFAST8 "hi"
+# elif INT_FAST8_MAX == 0x7f
+#  define SCNiFAST8 "hhi"
+# else
+#  define SCNiFAST8 "i"
+# endif
+#endif
+#if !defined SCNoFAST8
+# if UINT_FAST8_MAX > UINT32_MAX
+#  define SCNoFAST8 SCNo64
+# elif UINT_FAST8_MAX == 0xffff
+#  define SCNoFAST8 "ho"
+# elif UINT_FAST8_MAX == 0xff
+#  define SCNoFAST8 "hho"
+# else
+#  define SCNoFAST8 "o"
+# endif
+#endif
+#if !defined SCNuFAST8
+# if UINT_FAST8_MAX > UINT32_MAX
+#  define SCNuFAST8 SCNu64
+# elif UINT_FAST8_MAX == 0xffff
+#  define SCNuFAST8 "hu"
+# elif UINT_FAST8_MAX == 0xff
+#  define SCNuFAST8 "hhu"
+# else
+#  define SCNuFAST8 "u"
+# endif
+#endif
+#if !defined SCNxFAST8
+# if UINT_FAST8_MAX > UINT32_MAX
+#  define SCNxFAST8 SCNx64
+# elif UINT_FAST8_MAX == 0xffff
+#  define SCNxFAST8 "hx"
+# elif UINT_FAST8_MAX == 0xff
+#  define SCNxFAST8 "hhx"
+# else
+#  define SCNxFAST8 "x"
+# endif
+#endif
+#if !defined SCNdFAST16
+# if INT_FAST16_MAX > INT32_MAX
+#  define SCNdFAST16 SCNd64
+# elif INT_FAST16_MAX == 0x7fff
+#  define SCNdFAST16 "hd"
+# else
+#  define SCNdFAST16 "d"
+# endif
+#endif
+#if !defined SCNiFAST16
+# if INT_FAST16_MAX > INT32_MAX
+#  define SCNiFAST16 SCNi64
+# elif INT_FAST16_MAX == 0x7fff
+#  define SCNiFAST16 "hi"
+# else
+#  define SCNiFAST16 "i"
+# endif
+#endif
+#if !defined SCNoFAST16
+# if UINT_FAST16_MAX > UINT32_MAX
+#  define SCNoFAST16 SCNo64
+# elif UINT_FAST16_MAX == 0xffff
+#  define SCNoFAST16 "ho"
+# else
+#  define SCNoFAST16 "o"
+# endif
+#endif
+#if !defined SCNuFAST16
+# if UINT_FAST16_MAX > UINT32_MAX
+#  define SCNuFAST16 SCNu64
+# elif UINT_FAST16_MAX == 0xffff
+#  define SCNuFAST16 "hu"
+# else
+#  define SCNuFAST16 "u"
+# endif
+#endif
+#if !defined SCNxFAST16
+# if UINT_FAST16_MAX > UINT32_MAX
+#  define SCNxFAST16 SCNx64
+# elif UINT_FAST16_MAX == 0xffff
+#  define SCNxFAST16 "hx"
+# else
+#  define SCNxFAST16 "x"
+# endif
+#endif
+#if !defined SCNdFAST32
+# if INT_FAST32_MAX > INT32_MAX
+#  define SCNdFAST32 SCNd64
+# else
+#  define SCNdFAST32 "d"
+# endif
+#endif
+#if !defined SCNiFAST32
+# if INT_FAST32_MAX > INT32_MAX
+#  define SCNiFAST32 SCNi64
+# else
+#  define SCNiFAST32 "i"
+# endif
+#endif
+#if !defined SCNoFAST32
+# if UINT_FAST32_MAX > UINT32_MAX
+#  define SCNoFAST32 SCNo64
+# else
+#  define SCNoFAST32 "o"
+# endif
+#endif
+#if !defined SCNuFAST32
+# if UINT_FAST32_MAX > UINT32_MAX
+#  define SCNuFAST32 SCNu64
+# else
+#  define SCNuFAST32 "u"
+# endif
+#endif
+#if !defined SCNxFAST32
+# if UINT_FAST32_MAX > UINT32_MAX
+#  define SCNxFAST32 SCNx64
+# else
+#  define SCNxFAST32 "x"
+# endif
+#endif
+#ifdef INT64_MAX
+# if !defined SCNdFAST64
+#  define SCNdFAST64 SCNd64
+# endif
+# if !defined SCNiFAST64
+#  define SCNiFAST64 SCNi64
+# endif
+#endif
+#ifdef UINT64_MAX
+# if !defined SCNoFAST64
+#  define SCNoFAST64 SCNo64
+# endif
+# if !defined SCNuFAST64
+#  define SCNuFAST64 SCNu64
+# endif
+# if !defined SCNxFAST64
+#  define SCNxFAST64 SCNx64
+# endif
+#endif
+
+#if !defined SCNdMAX
+# if 1
+#  define SCNdMAX SCNd64
+# else
+#  define SCNdMAX "ld"
+# endif
+#endif
+#if !defined SCNiMAX
+# if 1
+#  define SCNiMAX SCNi64
+# else
+#  define SCNiMAX "li"
+# endif
+#endif
+#if !defined SCNoMAX
+# if 1
+#  define SCNoMAX SCNo64
+# else
+#  define SCNoMAX "lo"
+# endif
+#endif
+#if !defined SCNuMAX
+# if 1
+#  define SCNuMAX SCNu64
+# else
+#  define SCNuMAX "lu"
+# endif
+#endif
+#if !defined SCNxMAX
+# if 1
+#  define SCNxMAX SCNx64
+# else
+#  define SCNxMAX "lx"
+# endif
+#endif
+
+#if !defined SCNdPTR
+# ifdef INTPTR_MAX
+#  define SCNdPTR __PRIPTR_PREFIX "d"
+# endif
+#endif
+#if !defined SCNiPTR
+# ifdef INTPTR_MAX
+#  define SCNiPTR __PRIPTR_PREFIX "i"
+# endif
+#endif
+#if !defined SCNoPTR
+# ifdef UINTPTR_MAX
+#  define SCNoPTR __PRIPTR_PREFIX "o"
+# endif
+#endif
+#if !defined SCNuPTR
+# ifdef UINTPTR_MAX
+#  define SCNuPTR __PRIPTR_PREFIX "u"
+# endif
+#endif
+#if !defined SCNxPTR
+# ifdef UINTPTR_MAX
+#  define SCNxPTR __PRIPTR_PREFIX "x"
+# endif
+#endif
+
+/* 7.8.2 Functions for greatest-width integer types */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if 0
+# if !1
+extern intmax_t imaxabs (intmax_t);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef imaxabs
+# if HAVE_RAW_DECL_IMAXABS
+_GL_WARN_ON_USE (imaxabs, "imaxabs is unportable - "
+                 "use gnulib module imaxabs for portability");
+# endif
+#endif
+
+#if 0
+# if !1
+#  if !GNULIB_defined_imaxdiv_t
+typedef struct { intmax_t quot; intmax_t rem; } imaxdiv_t;
+#   define GNULIB_defined_imaxdiv_t 1
+#  endif
+# endif
+# if !1
+extern imaxdiv_t imaxdiv (intmax_t, intmax_t);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef imaxdiv
+# if HAVE_RAW_DECL_IMAXDIV
+_GL_WARN_ON_USE (imaxdiv, "imaxdiv is unportable - "
+                 "use gnulib module imaxdiv for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef strtoimax
+#   define strtoimax rpl_strtoimax
+#  endif
+_GL_FUNCDECL_RPL (strtoimax, intmax_t,
+                  (const char *restrict, char **restrict, int)
+                  _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (strtoimax, intmax_t,
+                  (const char *restrict, char **restrict, int));
+# else
+#  if !1
+#   undef strtoimax
+_GL_FUNCDECL_SYS (strtoimax, intmax_t,
+                  (const char *restrict, char **restrict, int)
+                  _GL_ARG_NONNULL ((1)));
+#  endif
+_GL_CXXALIAS_SYS (strtoimax, intmax_t,
+                  (const char *restrict, char **restrict, int));
+# endif
+_GL_CXXALIASWARN (strtoimax);
+#elif defined GNULIB_POSIXCHECK
+# undef strtoimax
+# if HAVE_RAW_DECL_STRTOIMAX
+_GL_WARN_ON_USE (strtoimax, "strtoimax is unportable - "
+                 "use gnulib module strtoimax for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef strtoumax
+#   define strtoumax rpl_strtoumax
+#  endif
+_GL_FUNCDECL_RPL (strtoumax, uintmax_t,
+                  (const char *restrict, char **restrict, int)
+                  _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (strtoumax, uintmax_t,
+                  (const char *restrict, char **restrict, int));
+# else
+#  if !1
+#   undef strtoumax
+_GL_FUNCDECL_SYS (strtoumax, uintmax_t,
+                  (const char *restrict, char **restrict, int)
+                  _GL_ARG_NONNULL ((1)));
+#  endif
+_GL_CXXALIAS_SYS (strtoumax, uintmax_t,
+                  (const char *restrict, char **restrict, int));
+# endif
+_GL_CXXALIASWARN (strtoumax);
+#elif defined GNULIB_POSIXCHECK
+# undef strtoumax
+# if HAVE_RAW_DECL_STRTOUMAX
+_GL_WARN_ON_USE (strtoumax, "strtoumax is unportable - "
+                 "use gnulib module strtoumax for portability");
+# endif
+#endif
+
+/* Don't bother defining or declaring wcstoimax and wcstoumax, since
+   wide-character functions like this are hardly ever useful.  */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !defined INTTYPES_H && !defined _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H */
diff --git a/gl/limits.h b/gl/limits.h
new file mode 100644
index 0000000..1da08b8
--- /dev/null
+++ b/gl/limits.h
@@ -0,0 +1,132 @@
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* A GNU-like <limits.h>.
+
+   Copyright 2016-2023 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
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
+
+   This file 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#if __GNUC__ >= 3
+#pragma GCC system_header
+#endif
+
+
+#if defined _GL_ALREADY_INCLUDING_LIMITS_H
+/* Special invocation convention:
+   On Haiku/x86_64, we have a sequence of nested includes
+   <limits.h> -> <syslimits.h> -> <limits.h>.
+   In this situation, LONG_MAX and INT_MAX are not yet defined,
+   therefore we should not attempt to define LONG_BIT.  */
+
+#include_next <limits.h>
+
+#else
+/* Normal invocation convention.  */
+
+#ifndef _GL_LIMITS_H
+
+# define _GL_ALREADY_INCLUDING_LIMITS_H
+
+/* The include_next requires a split double-inclusion guard.  */
+# include_next <limits.h>
+
+# undef _GL_ALREADY_INCLUDING_LIMITS_H
+
+#ifndef _GL_LIMITS_H
+#define _GL_LIMITS_H
+
+#ifndef LLONG_MIN
+# if defined LONG_LONG_MIN /* HP-UX 11.31 */
+#  define LLONG_MIN LONG_LONG_MIN
+# elif defined LONGLONG_MIN /* IRIX 6.5 */
+#  define LLONG_MIN LONGLONG_MIN
+# elif defined __GNUC__
+#  define LLONG_MIN (- __LONG_LONG_MAX__ - 1LL)
+# endif
+#endif
+#ifndef LLONG_MAX
+# if defined LONG_LONG_MAX /* HP-UX 11.31 */
+#  define LLONG_MAX LONG_LONG_MAX
+# elif defined LONGLONG_MAX /* IRIX 6.5 */
+#  define LLONG_MAX LONGLONG_MAX
+# elif defined __GNUC__
+#  define LLONG_MAX __LONG_LONG_MAX__
+# endif
+#endif
+#ifndef ULLONG_MAX
+# if defined ULONG_LONG_MAX /* HP-UX 11.31 */
+#  define ULLONG_MAX ULONG_LONG_MAX
+# elif defined ULONGLONG_MAX /* IRIX 6.5 */
+#  define ULLONG_MAX ULONGLONG_MAX
+# elif defined __GNUC__
+#  define ULLONG_MAX (__LONG_LONG_MAX__ * 2ULL + 1ULL)
+# endif
+#endif
+
+/* The number of usable bits in an unsigned or signed integer type
+   with minimum value MIN and maximum value MAX, as an int expression
+   suitable in #if.  Cover all known practical hosts.  This
+   implementation exploits the fact that MAX is 1 less than a power of
+   2, and merely counts the number of 1 bits in MAX; "COBn" means
+   "count the number of 1 bits in the low-order n bits").  */
+#define _GL_INTEGER_WIDTH(min, max) (((min) < 0) + _GL_COB128 (max))
+#define _GL_COB128(n) (_GL_COB64 ((n) >> 31 >> 31 >> 2) + _GL_COB64 (n))
+#define _GL_COB64(n) (_GL_COB32 ((n) >> 31 >> 1) + _GL_COB32 (n))
+#define _GL_COB32(n) (_GL_COB16 ((n) >> 16) + _GL_COB16 (n))
+#define _GL_COB16(n) (_GL_COB8 ((n) >> 8) + _GL_COB8 (n))
+#define _GL_COB8(n) (_GL_COB4 ((n) >> 4) + _GL_COB4 (n))
+#define _GL_COB4(n) (!!((n) & 8) + !!((n) & 4) + !!((n) & 2) + !!((n) & 1))
+
+#ifndef WORD_BIT
+/* Assume 'int' is 32 bits wide.  */
+# define WORD_BIT 32
+#endif
+#ifndef LONG_BIT
+/* Assume 'long' is 32 or 64 bits wide.  */
+# if LONG_MAX == INT_MAX
+#  define LONG_BIT 32
+# else
+#  define LONG_BIT 64
+# endif
+#endif
+
+/* Macros specified by C23 and by ISO/IEC TS 18661-1:2014.  */
+
+#if (! defined ULLONG_WIDTH                                             \
+     && (defined _GNU_SOURCE || defined __STDC_WANT_IEC_60559_BFP_EXT__ \
+         || (defined __STDC_VERSION__ && 201710 < __STDC_VERSION__)))
+# define CHAR_WIDTH _GL_INTEGER_WIDTH (CHAR_MIN, CHAR_MAX)
+# define SCHAR_WIDTH _GL_INTEGER_WIDTH (SCHAR_MIN, SCHAR_MAX)
+# define UCHAR_WIDTH _GL_INTEGER_WIDTH (0, UCHAR_MAX)
+# define SHRT_WIDTH _GL_INTEGER_WIDTH (SHRT_MIN, SHRT_MAX)
+# define USHRT_WIDTH _GL_INTEGER_WIDTH (0, USHRT_MAX)
+# define INT_WIDTH _GL_INTEGER_WIDTH (INT_MIN, INT_MAX)
+# define UINT_WIDTH _GL_INTEGER_WIDTH (0, UINT_MAX)
+# define LONG_WIDTH _GL_INTEGER_WIDTH (LONG_MIN, LONG_MAX)
+# define ULONG_WIDTH _GL_INTEGER_WIDTH (0, ULONG_MAX)
+# define LLONG_WIDTH _GL_INTEGER_WIDTH (LLONG_MIN, LLONG_MAX)
+# define ULLONG_WIDTH _GL_INTEGER_WIDTH (0, ULLONG_MAX)
+#endif
+
+/* Macros specified by C23.  */
+
+#if (! defined BOOL_WIDTH \
+     && (defined _GNU_SOURCE \
+         || (defined __STDC_VERSION__ && 201710 < __STDC_VERSION__)))
+# define BOOL_MAX 1
+# define BOOL_WIDTH 1
+#endif
+
+#endif /* _GL_LIMITS_H */
+#endif /* _GL_LIMITS_H */
+#endif
diff --git a/gl/m4/gnulib-cache.m4 b/gl/m4/gnulib-cache.m4
index ee4756e..4e5055e 100644
--- a/gl/m4/gnulib-cache.m4
+++ b/gl/m4/gnulib-cache.m4
@@ -38,8 +38,9 @@
 #  --no-libtool \
 #  --macro-prefix=gl \
 #  --no-vc-files \
+#  --no-vc-files \
 #  base64 \
-#  crypto/sha1 \
+#  crypto/sha256 \
 #  dirname \
 #  environ \
 #  floorf \
@@ -64,8 +65,9 @@
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([])
 gl_MODULES([
+  --no-vc-files
   base64
-  crypto/sha1
+  crypto/sha256
   dirname
   environ
   floorf
diff --git a/gl/m4/gnulib-comp.m4 b/gl/m4/gnulib-comp.m4
index 644b916..e6501b9 100644
--- a/gl/m4/gnulib-comp.m4
+++ b/gl/m4/gnulib-comp.m4
@@ -58,8 +58,8 @@ AC_DEFUN([gl_EARLY],
   # Code from module cloexec:
   # Code from module close:
   # Code from module crypto/af_alg:
-  # Code from module crypto/sha1:
-  # Code from module crypto/sha1-buffer:
+  # Code from module crypto/sha256:
+  # Code from module crypto/sha256-buffer:
   # Code from module dirname:
   # Code from module dirname-lgpl:
   # Code from module double-slash-root:
@@ -268,7 +268,7 @@ AC_DEFUN([gl_INIT],
   gl_UNISTD_MODULE_INDICATOR([close])
   gl_AF_ALG
   AC_REQUIRE([AC_C_RESTRICT])
-  gl_SHA1
+  gl_SHA256
   gl_MODULE_INDICATOR([dirname])
   gl_DOUBLE_SLASH_ROOT
   gl_FUNC_DUP2
@@ -1132,9 +1132,9 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/setlocale-lock.c
   lib/setlocale_null.c
   lib/setlocale_null.h
-  lib/sha1-stream.c
-  lib/sha1.c
-  lib/sha1.h
+  lib/sha256-stream.c
+  lib/sha256.c
+  lib/sha256.h
   lib/size_max.h
   lib/snprintf.c
   lib/sockets.c
@@ -1319,7 +1319,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/servent.m4
   m4/setenv.m4
   m4/setlocale_null.m4
-  m4/sha1.m4
+  m4/sha256.m4
   m4/size_max.m4
   m4/snprintf.m4
   m4/socketlib.m4
diff --git a/gl/m4/sha1.m4 b/gl/m4/sha256.m4
similarity index 50%
rename from gl/m4/sha1.m4
rename to gl/m4/sha256.m4
index 16b79c0..4d1d1dd 100644
--- a/gl/m4/sha1.m4
+++ b/gl/m4/sha256.m4
@@ -1,14 +1,14 @@
-# sha1.m4 serial 12
-dnl Copyright (C) 2002-2006, 2008-2023 Free Software Foundation, Inc.
+# sha256.m4 serial 8
+dnl Copyright (C) 2005, 2008-2023 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
-AC_DEFUN([gl_SHA1],
+AC_DEFUN([gl_SHA256],
 [
-  dnl Prerequisites of lib/sha1.c.
+  dnl Prerequisites of lib/sha256.c.
   AC_REQUIRE([gl_BIGENDIAN])
 
-  dnl Determine HAVE_OPENSSL_SHA1 and LIB_CRYPTO
-  gl_CRYPTO_CHECK([SHA1])
+  dnl Determine HAVE_OPENSSL_SHA256 and LIB_CRYPTO
+  gl_CRYPTO_CHECK([SHA256])
 ])
diff --git a/gl/malloc/.deps/.dirstamp b/gl/malloc/.deps/.dirstamp
new file mode 100644
index 0000000..e69de29
diff --git a/gl/malloc/.deps/libgnu_a-dynarray-skeleton.Po b/gl/malloc/.deps/libgnu_a-dynarray-skeleton.Po
new file mode 100644
index 0000000..9ce06a8
--- /dev/null
+++ b/gl/malloc/.deps/libgnu_a-dynarray-skeleton.Po
@@ -0,0 +1 @@
+# dummy
diff --git a/gl/malloc/.deps/libgnu_a-dynarray_at_failure.Po b/gl/malloc/.deps/libgnu_a-dynarray_at_failure.Po
new file mode 100644
index 0000000..4902a8d
--- /dev/null
+++ b/gl/malloc/.deps/libgnu_a-dynarray_at_failure.Po
@@ -0,0 +1,142 @@
+malloc/libgnu_a-dynarray_at_failure.o: malloc/dynarray_at_failure.c \
+ /usr/include/stdc-predef.h libc-config.h ../config.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stdalign.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stdbool.h /usr/include/assert.h \
+ /usr/include/features.h /usr/include/features-time64.h \
+ /usr/include/x86_64-linux-gnu/bits/wordsize.h \
+ /usr/include/x86_64-linux-gnu/bits/timesize.h \
+ /usr/include/x86_64-linux-gnu/sys/cdefs.h \
+ /usr/include/x86_64-linux-gnu/bits/long-double.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs-64.h /usr/include/errno.h \
+ /usr/include/x86_64-linux-gnu/bits/errno.h /usr/include/linux/errno.h \
+ /usr/include/x86_64-linux-gnu/asm/errno.h \
+ /usr/include/asm-generic/errno.h /usr/include/asm-generic/errno-base.h \
+ /usr/include/x86_64-linux-gnu/bits/types/error_t.h stdlib.h \
+ /usr/include/stdlib.h \
+ /usr/include/x86_64-linux-gnu/bits/libc-header-start.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stddef.h \
+ /usr/include/x86_64-linux-gnu/bits/waitflags.h \
+ /usr/include/x86_64-linux-gnu/bits/waitstatus.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn-common.h \
+ /usr/include/x86_64-linux-gnu/bits/types/locale_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__locale_t.h sys/types.h \
+ /usr/include/x86_64-linux-gnu/sys/types.h \
+ /usr/include/x86_64-linux-gnu/bits/types.h \
+ /usr/include/x86_64-linux-gnu/bits/typesizes.h \
+ /usr/include/x86_64-linux-gnu/bits/time64.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clock_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clockid_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/time_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/timer_t.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-intn.h /usr/include/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endianness.h \
+ /usr/include/x86_64-linux-gnu/bits/byteswap.h \
+ /usr/include/x86_64-linux-gnu/bits/uintn-identity.h \
+ /usr/include/x86_64-linux-gnu/sys/select.h \
+ /usr/include/x86_64-linux-gnu/bits/select.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes.h \
+ /usr/include/x86_64-linux-gnu/bits/thread-shared-types.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/atomic_wide_counter.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_mutex.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_rwlock.h alloca.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-float.h dynarray.h \
+ malloc/dynarray.h string.h /usr/include/string.h strings.h \
+ /usr/include/strings.h stdio.h /usr/include/stdio.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stdarg.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h \
+ /usr/include/x86_64-linux-gnu/bits/types/cookie_io_functions_t.h \
+ /usr/include/x86_64-linux-gnu/bits/stdio_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/stdio.h
+/usr/include/stdc-predef.h:
+libc-config.h:
+../config.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stdalign.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stdbool.h:
+/usr/include/assert.h:
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+/usr/include/linux/errno.h:
+/usr/include/x86_64-linux-gnu/asm/errno.h:
+/usr/include/asm-generic/errno.h:
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+/usr/include/x86_64-linux-gnu/bits/typesizes.h:
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+/usr/include/x86_64-linux-gnu/bits/types/timer_t.h:
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+/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h:
+/usr/include/x86_64-linux-gnu/bits/atomic_wide_counter.h:
+/usr/include/x86_64-linux-gnu/bits/struct_mutex.h:
+/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h:
+alloca.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-float.h:
+dynarray.h:
+malloc/dynarray.h:
+string.h:
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+strings.h:
+/usr/include/strings.h:
+stdio.h:
+/usr/include/stdio.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stdarg.h:
+/usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h:
+/usr/include/x86_64-linux-gnu/bits/types/cookie_io_functions_t.h:
+/usr/include/x86_64-linux-gnu/bits/stdio_lim.h:
+/usr/include/x86_64-linux-gnu/bits/stdio.h:
diff --git a/gl/malloc/.deps/libgnu_a-dynarray_emplace_enlarge.Po b/gl/malloc/.deps/libgnu_a-dynarray_emplace_enlarge.Po
new file mode 100644
index 0000000..be7a9eb
--- /dev/null
+++ b/gl/malloc/.deps/libgnu_a-dynarray_emplace_enlarge.Po
@@ -0,0 +1,142 @@
+malloc/libgnu_a-dynarray_emplace_enlarge.o: \
+ malloc/dynarray_emplace_enlarge.c /usr/include/stdc-predef.h \
+ libc-config.h ../config.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stdalign.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stdbool.h /usr/include/assert.h \
+ /usr/include/features.h /usr/include/features-time64.h \
+ /usr/include/x86_64-linux-gnu/bits/wordsize.h \
+ /usr/include/x86_64-linux-gnu/bits/timesize.h \
+ /usr/include/x86_64-linux-gnu/sys/cdefs.h \
+ /usr/include/x86_64-linux-gnu/bits/long-double.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs-64.h /usr/include/errno.h \
+ /usr/include/x86_64-linux-gnu/bits/errno.h /usr/include/linux/errno.h \
+ /usr/include/x86_64-linux-gnu/asm/errno.h \
+ /usr/include/asm-generic/errno.h /usr/include/asm-generic/errno-base.h \
+ /usr/include/x86_64-linux-gnu/bits/types/error_t.h dynarray.h \
+ malloc/dynarray.h /usr/lib/gcc/x86_64-linux-gnu/12/include/stddef.h \
+ string.h /usr/include/string.h \
+ /usr/include/x86_64-linux-gnu/bits/libc-header-start.h \
+ /usr/include/x86_64-linux-gnu/bits/types/locale_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__locale_t.h strings.h \
+ /usr/include/strings.h intprops.h intprops-internal.h limits.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/limits.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/syslimits.h \
+ /usr/include/limits.h /usr/include/x86_64-linux-gnu/bits/posix1_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/local_lim.h \
+ /usr/include/linux/limits.h \
+ /usr/include/x86_64-linux-gnu/bits/pthread_stack_min-dynamic.h \
+ /usr/include/x86_64-linux-gnu/bits/posix2_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/xopen_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/uio_lim.h stdlib.h \
+ /usr/include/stdlib.h /usr/include/x86_64-linux-gnu/bits/waitflags.h \
+ /usr/include/x86_64-linux-gnu/bits/waitstatus.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn-common.h sys/types.h \
+ /usr/include/x86_64-linux-gnu/sys/types.h \
+ /usr/include/x86_64-linux-gnu/bits/types.h \
+ /usr/include/x86_64-linux-gnu/bits/typesizes.h \
+ /usr/include/x86_64-linux-gnu/bits/time64.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clock_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clockid_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/time_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/timer_t.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-intn.h /usr/include/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endianness.h \
+ /usr/include/x86_64-linux-gnu/bits/byteswap.h \
+ /usr/include/x86_64-linux-gnu/bits/uintn-identity.h \
+ /usr/include/x86_64-linux-gnu/sys/select.h \
+ /usr/include/x86_64-linux-gnu/bits/select.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes.h \
+ /usr/include/x86_64-linux-gnu/bits/thread-shared-types.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/atomic_wide_counter.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_mutex.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_rwlock.h alloca.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-float.h
+/usr/include/stdc-predef.h:
+libc-config.h:
+../config.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stdalign.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stdbool.h:
+/usr/include/assert.h:
+/usr/include/features.h:
+/usr/include/features-time64.h:
+/usr/include/x86_64-linux-gnu/bits/wordsize.h:
+/usr/include/x86_64-linux-gnu/bits/timesize.h:
+/usr/include/x86_64-linux-gnu/sys/cdefs.h:
+/usr/include/x86_64-linux-gnu/bits/long-double.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs-64.h:
+/usr/include/errno.h:
+/usr/include/x86_64-linux-gnu/bits/errno.h:
+/usr/include/linux/errno.h:
+/usr/include/x86_64-linux-gnu/asm/errno.h:
+/usr/include/asm-generic/errno.h:
+/usr/include/asm-generic/errno-base.h:
+/usr/include/x86_64-linux-gnu/bits/types/error_t.h:
+dynarray.h:
+malloc/dynarray.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stddef.h:
+string.h:
+/usr/include/string.h:
+/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:
+/usr/include/x86_64-linux-gnu/bits/types/locale_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__locale_t.h:
+strings.h:
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+intprops.h:
+intprops-internal.h:
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+/usr/lib/gcc/x86_64-linux-gnu/12/include/limits.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/syslimits.h:
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+/usr/include/x86_64-linux-gnu/bits/local_lim.h:
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+/usr/include/x86_64-linux-gnu/bits/pthread_stack_min-dynamic.h:
+/usr/include/x86_64-linux-gnu/bits/posix2_lim.h:
+/usr/include/x86_64-linux-gnu/bits/xopen_lim.h:
+/usr/include/x86_64-linux-gnu/bits/uio_lim.h:
+stdlib.h:
+/usr/include/stdlib.h:
+/usr/include/x86_64-linux-gnu/bits/waitflags.h:
+/usr/include/x86_64-linux-gnu/bits/waitstatus.h:
+/usr/include/x86_64-linux-gnu/bits/floatn.h:
+/usr/include/x86_64-linux-gnu/bits/floatn-common.h:
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+/usr/include/x86_64-linux-gnu/bits/types.h:
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+/usr/include/x86_64-linux-gnu/bits/endianness.h:
+/usr/include/x86_64-linux-gnu/bits/byteswap.h:
+/usr/include/x86_64-linux-gnu/bits/uintn-identity.h:
+/usr/include/x86_64-linux-gnu/sys/select.h:
+/usr/include/x86_64-linux-gnu/bits/select.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h:
+/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h:
+/usr/include/x86_64-linux-gnu/bits/atomic_wide_counter.h:
+/usr/include/x86_64-linux-gnu/bits/struct_mutex.h:
+/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h:
+alloca.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-float.h:
diff --git a/gl/malloc/.deps/libgnu_a-dynarray_finalize.Po b/gl/malloc/.deps/libgnu_a-dynarray_finalize.Po
new file mode 100644
index 0000000..0c9dc34
--- /dev/null
+++ b/gl/malloc/.deps/libgnu_a-dynarray_finalize.Po
@@ -0,0 +1,119 @@
+malloc/libgnu_a-dynarray_finalize.o: malloc/dynarray_finalize.c \
+ /usr/include/stdc-predef.h libc-config.h ../config.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stdalign.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stdbool.h /usr/include/assert.h \
+ /usr/include/features.h /usr/include/features-time64.h \
+ /usr/include/x86_64-linux-gnu/bits/wordsize.h \
+ /usr/include/x86_64-linux-gnu/bits/timesize.h \
+ /usr/include/x86_64-linux-gnu/sys/cdefs.h \
+ /usr/include/x86_64-linux-gnu/bits/long-double.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs-64.h /usr/include/errno.h \
+ /usr/include/x86_64-linux-gnu/bits/errno.h /usr/include/linux/errno.h \
+ /usr/include/x86_64-linux-gnu/asm/errno.h \
+ /usr/include/asm-generic/errno.h /usr/include/asm-generic/errno-base.h \
+ /usr/include/x86_64-linux-gnu/bits/types/error_t.h dynarray.h \
+ malloc/dynarray.h /usr/lib/gcc/x86_64-linux-gnu/12/include/stddef.h \
+ string.h /usr/include/string.h \
+ /usr/include/x86_64-linux-gnu/bits/libc-header-start.h \
+ /usr/include/x86_64-linux-gnu/bits/types/locale_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__locale_t.h strings.h \
+ /usr/include/strings.h stdlib.h /usr/include/stdlib.h \
+ /usr/include/x86_64-linux-gnu/bits/waitflags.h \
+ /usr/include/x86_64-linux-gnu/bits/waitstatus.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn-common.h sys/types.h \
+ /usr/include/x86_64-linux-gnu/sys/types.h \
+ /usr/include/x86_64-linux-gnu/bits/types.h \
+ /usr/include/x86_64-linux-gnu/bits/typesizes.h \
+ /usr/include/x86_64-linux-gnu/bits/time64.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clock_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clockid_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/time_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/timer_t.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-intn.h /usr/include/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endianness.h \
+ /usr/include/x86_64-linux-gnu/bits/byteswap.h \
+ /usr/include/x86_64-linux-gnu/bits/uintn-identity.h \
+ /usr/include/x86_64-linux-gnu/sys/select.h \
+ /usr/include/x86_64-linux-gnu/bits/select.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes.h \
+ /usr/include/x86_64-linux-gnu/bits/thread-shared-types.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/atomic_wide_counter.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_mutex.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_rwlock.h alloca.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-float.h
+/usr/include/stdc-predef.h:
+libc-config.h:
+../config.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stdalign.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stdbool.h:
+/usr/include/assert.h:
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+/usr/include/asm-generic/errno.h:
+/usr/include/asm-generic/errno-base.h:
+/usr/include/x86_64-linux-gnu/bits/types/error_t.h:
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+malloc/dynarray.h:
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+string.h:
+/usr/include/string.h:
+/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:
+/usr/include/x86_64-linux-gnu/bits/types/locale_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__locale_t.h:
+strings.h:
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+/usr/include/x86_64-linux-gnu/bits/floatn.h:
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+/usr/include/x86_64-linux-gnu/bits/types/sigset_t.h:
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+/usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h:
+/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h:
+/usr/include/x86_64-linux-gnu/bits/atomic_wide_counter.h:
+/usr/include/x86_64-linux-gnu/bits/struct_mutex.h:
+/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h:
+alloca.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-float.h:
diff --git a/gl/malloc/.deps/libgnu_a-dynarray_resize.Po b/gl/malloc/.deps/libgnu_a-dynarray_resize.Po
new file mode 100644
index 0000000..e738d85
--- /dev/null
+++ b/gl/malloc/.deps/libgnu_a-dynarray_resize.Po
@@ -0,0 +1,141 @@
+malloc/libgnu_a-dynarray_resize.o: malloc/dynarray_resize.c \
+ /usr/include/stdc-predef.h libc-config.h ../config.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stdalign.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stdbool.h /usr/include/assert.h \
+ /usr/include/features.h /usr/include/features-time64.h \
+ /usr/include/x86_64-linux-gnu/bits/wordsize.h \
+ /usr/include/x86_64-linux-gnu/bits/timesize.h \
+ /usr/include/x86_64-linux-gnu/sys/cdefs.h \
+ /usr/include/x86_64-linux-gnu/bits/long-double.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs-64.h /usr/include/errno.h \
+ /usr/include/x86_64-linux-gnu/bits/errno.h /usr/include/linux/errno.h \
+ /usr/include/x86_64-linux-gnu/asm/errno.h \
+ /usr/include/asm-generic/errno.h /usr/include/asm-generic/errno-base.h \
+ /usr/include/x86_64-linux-gnu/bits/types/error_t.h dynarray.h \
+ malloc/dynarray.h /usr/lib/gcc/x86_64-linux-gnu/12/include/stddef.h \
+ string.h /usr/include/string.h \
+ /usr/include/x86_64-linux-gnu/bits/libc-header-start.h \
+ /usr/include/x86_64-linux-gnu/bits/types/locale_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__locale_t.h strings.h \
+ /usr/include/strings.h intprops.h intprops-internal.h limits.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/limits.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/syslimits.h \
+ /usr/include/limits.h /usr/include/x86_64-linux-gnu/bits/posix1_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/local_lim.h \
+ /usr/include/linux/limits.h \
+ /usr/include/x86_64-linux-gnu/bits/pthread_stack_min-dynamic.h \
+ /usr/include/x86_64-linux-gnu/bits/posix2_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/xopen_lim.h \
+ /usr/include/x86_64-linux-gnu/bits/uio_lim.h stdlib.h \
+ /usr/include/stdlib.h /usr/include/x86_64-linux-gnu/bits/waitflags.h \
+ /usr/include/x86_64-linux-gnu/bits/waitstatus.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn.h \
+ /usr/include/x86_64-linux-gnu/bits/floatn-common.h sys/types.h \
+ /usr/include/x86_64-linux-gnu/sys/types.h \
+ /usr/include/x86_64-linux-gnu/bits/types.h \
+ /usr/include/x86_64-linux-gnu/bits/typesizes.h \
+ /usr/include/x86_64-linux-gnu/bits/time64.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clock_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/clockid_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/time_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/timer_t.h \
+ /usr/include/x86_64-linux-gnu/bits/stdint-intn.h /usr/include/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endian.h \
+ /usr/include/x86_64-linux-gnu/bits/endianness.h \
+ /usr/include/x86_64-linux-gnu/bits/byteswap.h \
+ /usr/include/x86_64-linux-gnu/bits/uintn-identity.h \
+ /usr/include/x86_64-linux-gnu/sys/select.h \
+ /usr/include/x86_64-linux-gnu/bits/select.h \
+ /usr/include/x86_64-linux-gnu/bits/types/sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h \
+ /usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes.h \
+ /usr/include/x86_64-linux-gnu/bits/thread-shared-types.h \
+ /usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h \
+ /usr/include/x86_64-linux-gnu/bits/atomic_wide_counter.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_mutex.h \
+ /usr/include/x86_64-linux-gnu/bits/struct_rwlock.h alloca.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h \
+ /usr/include/x86_64-linux-gnu/bits/stdlib-float.h
+/usr/include/stdc-predef.h:
+libc-config.h:
+../config.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stdalign.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stdbool.h:
+/usr/include/assert.h:
+/usr/include/features.h:
+/usr/include/features-time64.h:
+/usr/include/x86_64-linux-gnu/bits/wordsize.h:
+/usr/include/x86_64-linux-gnu/bits/timesize.h:
+/usr/include/x86_64-linux-gnu/sys/cdefs.h:
+/usr/include/x86_64-linux-gnu/bits/long-double.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs-64.h:
+/usr/include/errno.h:
+/usr/include/x86_64-linux-gnu/bits/errno.h:
+/usr/include/linux/errno.h:
+/usr/include/x86_64-linux-gnu/asm/errno.h:
+/usr/include/asm-generic/errno.h:
+/usr/include/asm-generic/errno-base.h:
+/usr/include/x86_64-linux-gnu/bits/types/error_t.h:
+dynarray.h:
+malloc/dynarray.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stddef.h:
+string.h:
+/usr/include/string.h:
+/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:
+/usr/include/x86_64-linux-gnu/bits/types/locale_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__locale_t.h:
+strings.h:
+/usr/include/strings.h:
+intprops.h:
+intprops-internal.h:
+limits.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/limits.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/syslimits.h:
+/usr/include/limits.h:
+/usr/include/x86_64-linux-gnu/bits/posix1_lim.h:
+/usr/include/x86_64-linux-gnu/bits/local_lim.h:
+/usr/include/linux/limits.h:
+/usr/include/x86_64-linux-gnu/bits/pthread_stack_min-dynamic.h:
+/usr/include/x86_64-linux-gnu/bits/posix2_lim.h:
+/usr/include/x86_64-linux-gnu/bits/xopen_lim.h:
+/usr/include/x86_64-linux-gnu/bits/uio_lim.h:
+stdlib.h:
+/usr/include/stdlib.h:
+/usr/include/x86_64-linux-gnu/bits/waitflags.h:
+/usr/include/x86_64-linux-gnu/bits/waitstatus.h:
+/usr/include/x86_64-linux-gnu/bits/floatn.h:
+/usr/include/x86_64-linux-gnu/bits/floatn-common.h:
+sys/types.h:
+/usr/include/x86_64-linux-gnu/sys/types.h:
+/usr/include/x86_64-linux-gnu/bits/types.h:
+/usr/include/x86_64-linux-gnu/bits/typesizes.h:
+/usr/include/x86_64-linux-gnu/bits/time64.h:
+/usr/include/x86_64-linux-gnu/bits/types/clock_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/clockid_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/time_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/timer_t.h:
+/usr/include/x86_64-linux-gnu/bits/stdint-intn.h:
+/usr/include/endian.h:
+/usr/include/x86_64-linux-gnu/bits/endian.h:
+/usr/include/x86_64-linux-gnu/bits/endianness.h:
+/usr/include/x86_64-linux-gnu/bits/byteswap.h:
+/usr/include/x86_64-linux-gnu/bits/uintn-identity.h:
+/usr/include/x86_64-linux-gnu/sys/select.h:
+/usr/include/x86_64-linux-gnu/bits/select.h:
+/usr/include/x86_64-linux-gnu/bits/types/sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h:
+/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h:
+/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h:
+/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h:
+/usr/include/x86_64-linux-gnu/bits/atomic_wide_counter.h:
+/usr/include/x86_64-linux-gnu/bits/struct_mutex.h:
+/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h:
+alloca.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-bsearch.h:
+/usr/include/x86_64-linux-gnu/bits/stdlib-float.h:
diff --git a/gl/malloc/.deps/libgnu_a-dynarray_resize_clear.Po b/gl/malloc/.deps/libgnu_a-dynarray_resize_clear.Po
new file mode 100644
index 0000000..9585a04
--- /dev/null
+++ b/gl/malloc/.deps/libgnu_a-dynarray_resize_clear.Po
@@ -0,0 +1,52 @@
+malloc/libgnu_a-dynarray_resize_clear.o: malloc/dynarray_resize_clear.c \
+ /usr/include/stdc-predef.h libc-config.h ../config.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stdalign.h \
+ /usr/lib/gcc/x86_64-linux-gnu/12/include/stdbool.h /usr/include/assert.h \
+ /usr/include/features.h /usr/include/features-time64.h \
+ /usr/include/x86_64-linux-gnu/bits/wordsize.h \
+ /usr/include/x86_64-linux-gnu/bits/timesize.h \
+ /usr/include/x86_64-linux-gnu/sys/cdefs.h \
+ /usr/include/x86_64-linux-gnu/bits/long-double.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs.h \
+ /usr/include/x86_64-linux-gnu/gnu/stubs-64.h /usr/include/errno.h \
+ /usr/include/x86_64-linux-gnu/bits/errno.h /usr/include/linux/errno.h \
+ /usr/include/x86_64-linux-gnu/asm/errno.h \
+ /usr/include/asm-generic/errno.h /usr/include/asm-generic/errno-base.h \
+ /usr/include/x86_64-linux-gnu/bits/types/error_t.h dynarray.h \
+ malloc/dynarray.h /usr/lib/gcc/x86_64-linux-gnu/12/include/stddef.h \
+ string.h /usr/include/string.h \
+ /usr/include/x86_64-linux-gnu/bits/libc-header-start.h \
+ /usr/include/x86_64-linux-gnu/bits/types/locale_t.h \
+ /usr/include/x86_64-linux-gnu/bits/types/__locale_t.h strings.h \
+ /usr/include/strings.h
+/usr/include/stdc-predef.h:
+libc-config.h:
+../config.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stdalign.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stdbool.h:
+/usr/include/assert.h:
+/usr/include/features.h:
+/usr/include/features-time64.h:
+/usr/include/x86_64-linux-gnu/bits/wordsize.h:
+/usr/include/x86_64-linux-gnu/bits/timesize.h:
+/usr/include/x86_64-linux-gnu/sys/cdefs.h:
+/usr/include/x86_64-linux-gnu/bits/long-double.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs.h:
+/usr/include/x86_64-linux-gnu/gnu/stubs-64.h:
+/usr/include/errno.h:
+/usr/include/x86_64-linux-gnu/bits/errno.h:
+/usr/include/linux/errno.h:
+/usr/include/x86_64-linux-gnu/asm/errno.h:
+/usr/include/asm-generic/errno.h:
+/usr/include/asm-generic/errno-base.h:
+/usr/include/x86_64-linux-gnu/bits/types/error_t.h:
+dynarray.h:
+malloc/dynarray.h:
+/usr/lib/gcc/x86_64-linux-gnu/12/include/stddef.h:
+string.h:
+/usr/include/string.h:
+/usr/include/x86_64-linux-gnu/bits/libc-header-start.h:
+/usr/include/x86_64-linux-gnu/bits/types/locale_t.h:
+/usr/include/x86_64-linux-gnu/bits/types/__locale_t.h:
+strings.h:
+/usr/include/strings.h:
diff --git a/gl/malloc/.dirstamp b/gl/malloc/.dirstamp
new file mode 100644
index 0000000..e69de29
diff --git a/gl/malloc/dynarray-skeleton.gl.h b/gl/malloc/dynarray-skeleton.gl.h
new file mode 100644
index 0000000..af95414
--- /dev/null
+++ b/gl/malloc/dynarray-skeleton.gl.h
@@ -0,0 +1,529 @@
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* Type-safe arrays which grow dynamically.
+   Copyright (C) 2017-2023 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/>.  */
+
+/* Pre-processor macros which act as parameters:
+
+   DYNARRAY_STRUCT
+      The struct tag of dynamic array to be defined.
+   DYNARRAY_ELEMENT
+      The type name of the element type.  Elements are copied
+      as if by memcpy, and can change address as the dynamic
+      array grows.
+   DYNARRAY_PREFIX
+      The prefix of the functions which are defined.
+
+   The following parameters are optional:
+
+   DYNARRAY_ELEMENT_FREE
+      DYNARRAY_ELEMENT_FREE (E) is evaluated to deallocate the
+      contents of elements. E is of type  DYNARRAY_ELEMENT *.
+   DYNARRAY_ELEMENT_INIT
+      DYNARRAY_ELEMENT_INIT (E) is evaluated to initialize a new
+      element.  E is of type  DYNARRAY_ELEMENT *.
+      If DYNARRAY_ELEMENT_FREE but not DYNARRAY_ELEMENT_INIT is
+      defined, new elements are automatically zero-initialized.
+      Otherwise, new elements have undefined contents.
+   DYNARRAY_INITIAL_SIZE
+      The size of the statically allocated array (default:
+      at least 2, more elements if they fit into 128 bytes).
+      Must be a preprocessor constant.  If DYNARRAY_INITIAL_SIZE is 0,
+      there is no statically allocated array at, and all non-empty
+      arrays are heap-allocated.
+   DYNARRAY_FINAL_TYPE
+      The name of the type which holds the final array.  If not
+      defined, is PREFIX##finalize not provided.  DYNARRAY_FINAL_TYPE
+      must be a struct type, with members of type DYNARRAY_ELEMENT and
+      size_t at the start (in this order).
+
+   These macros are undefined after this header file has been
+   included.
+
+   The following types are provided (their members are private to the
+   dynarray implementation):
+
+     struct DYNARRAY_STRUCT
+
+   The following functions are provided:
+
+     void DYNARRAY_PREFIX##init (struct DYNARRAY_STRUCT *);
+     void DYNARRAY_PREFIX##free (struct DYNARRAY_STRUCT *);
+     bool DYNARRAY_PREFIX##has_failed (const struct DYNARRAY_STRUCT *);
+     void DYNARRAY_PREFIX##mark_failed (struct DYNARRAY_STRUCT *);
+     size_t DYNARRAY_PREFIX##size (const struct DYNARRAY_STRUCT *);
+     DYNARRAY_ELEMENT *DYNARRAY_PREFIX##begin (const struct DYNARRAY_STRUCT *);
+     DYNARRAY_ELEMENT *DYNARRAY_PREFIX##end (const struct DYNARRAY_STRUCT *);
+     DYNARRAY_ELEMENT *DYNARRAY_PREFIX##at (struct DYNARRAY_STRUCT *, size_t);
+     void DYNARRAY_PREFIX##add (struct DYNARRAY_STRUCT *, DYNARRAY_ELEMENT);
+     DYNARRAY_ELEMENT *DYNARRAY_PREFIX##emplace (struct DYNARRAY_STRUCT *);
+     bool DYNARRAY_PREFIX##resize (struct DYNARRAY_STRUCT *, size_t);
+     void DYNARRAY_PREFIX##remove_last (struct DYNARRAY_STRUCT *);
+     void DYNARRAY_PREFIX##clear (struct DYNARRAY_STRUCT *);
+
+   The following functions are provided are provided if the
+   prerequisites are met:
+
+     bool DYNARRAY_PREFIX##finalize (struct DYNARRAY_STRUCT *,
+                                     DYNARRAY_FINAL_TYPE *);
+       (if DYNARRAY_FINAL_TYPE is defined)
+     DYNARRAY_ELEMENT *DYNARRAY_PREFIX##finalize (struct DYNARRAY_STRUCT *,
+                                                  size_t *);
+       (if DYNARRAY_FINAL_TYPE is not defined)
+*/
+
+#include <malloc/dynarray.gl.h>
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef DYNARRAY_STRUCT
+# error "DYNARRAY_STRUCT must be defined"
+#endif
+
+#ifndef DYNARRAY_ELEMENT
+# error "DYNARRAY_ELEMENT must be defined"
+#endif
+
+#ifndef DYNARRAY_PREFIX
+# error "DYNARRAY_PREFIX must be defined"
+#endif
+
+#ifdef DYNARRAY_INITIAL_SIZE
+# if DYNARRAY_INITIAL_SIZE < 0
+#  error "DYNARRAY_INITIAL_SIZE must be non-negative"
+# endif
+# if DYNARRAY_INITIAL_SIZE > 0
+#  define DYNARRAY_HAVE_SCRATCH 1
+# else
+#  define DYNARRAY_HAVE_SCRATCH 0
+# endif
+#else
+/* Provide a reasonable default which limits the size of
+   DYNARRAY_STRUCT.  */
+# define DYNARRAY_INITIAL_SIZE \
+  (sizeof (DYNARRAY_ELEMENT) > 64 ? 2 : 128 / sizeof (DYNARRAY_ELEMENT))
+# define DYNARRAY_HAVE_SCRATCH 1
+#endif
+
+/* Public type definitions.  */
+
+/* All fields of this struct are private to the implementation.  */
+struct DYNARRAY_STRUCT
+{
+  union
+  {
+    struct dynarray_header dynarray_abstract;
+    struct
+    {
+      /* These fields must match struct dynarray_header.  */
+      size_t used;
+      size_t allocated;
+      DYNARRAY_ELEMENT *array;
+    } dynarray_header;
+  } u;
+
+#if DYNARRAY_HAVE_SCRATCH
+  /* Initial inline allocation.  */
+  DYNARRAY_ELEMENT scratch[DYNARRAY_INITIAL_SIZE];
+#endif
+};
+
+/* Internal use only: Helper macros.  */
+
+/* Ensure macro-expansion of DYNARRAY_PREFIX.  */
+#define DYNARRAY_CONCAT0(prefix, name) prefix##name
+#define DYNARRAY_CONCAT1(prefix, name) DYNARRAY_CONCAT0(prefix, name)
+#define DYNARRAY_NAME(name) DYNARRAY_CONCAT1(DYNARRAY_PREFIX, name)
+
+/* Use DYNARRAY_FREE instead of DYNARRAY_NAME (free),
+   so that Gnulib does not change 'free' to 'rpl_free'.  */
+#define DYNARRAY_FREE DYNARRAY_CONCAT1 (DYNARRAY_NAME (f), ree)
+
+/* Address of the scratch buffer if any.  */
+#if DYNARRAY_HAVE_SCRATCH
+# define DYNARRAY_SCRATCH(list) (list)->scratch
+#else
+# define DYNARRAY_SCRATCH(list) NULL
+#endif
+
+/* Internal use only: Helper functions.  */
+
+/* Internal function.  Call DYNARRAY_ELEMENT_FREE with the array
+   elements.  Name mangling needed due to the DYNARRAY_ELEMENT_FREE
+   macro expansion.  */
+static inline void
+DYNARRAY_NAME (free__elements__) (DYNARRAY_ELEMENT *__dynarray_array,
+                                  size_t __dynarray_used)
+{
+#ifdef DYNARRAY_ELEMENT_FREE
+  for (size_t __dynarray_i = 0; __dynarray_i < __dynarray_used; ++__dynarray_i)
+    DYNARRAY_ELEMENT_FREE (&__dynarray_array[__dynarray_i]);
+#endif /* DYNARRAY_ELEMENT_FREE */
+}
+
+/* Internal function.  Free the non-scratch array allocation.  */
+static inline void
+DYNARRAY_NAME (free__array__) (struct DYNARRAY_STRUCT *list)
+{
+#if DYNARRAY_HAVE_SCRATCH
+  if (list->u.dynarray_header.array != list->scratch)
+    free (list->u.dynarray_header.array);
+#else
+  free (list->u.dynarray_header.array);
+#endif
+}
+
+/* Public functions.  */
+
+/* Initialize a dynamic array object.  This must be called before any
+   use of the object.  */
+_GL_ATTRIBUTE_NONNULL ((1))
+static void
+DYNARRAY_NAME (init) (struct DYNARRAY_STRUCT *list)
+{
+  list->u.dynarray_header.used = 0;
+  list->u.dynarray_header.allocated = DYNARRAY_INITIAL_SIZE;
+  list->u.dynarray_header.array = DYNARRAY_SCRATCH (list);
+}
+
+/* Deallocate the dynamic array and its elements.  */
+_GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_NONNULL ((1))
+static void
+DYNARRAY_FREE (struct DYNARRAY_STRUCT *list)
+{
+  DYNARRAY_NAME (free__elements__)
+    (list->u.dynarray_header.array, list->u.dynarray_header.used);
+  DYNARRAY_NAME (free__array__) (list);
+  DYNARRAY_NAME (init) (list);
+}
+
+/* Return true if the dynamic array is in an error state.  */
+_GL_ATTRIBUTE_NONNULL ((1))
+static inline bool
+DYNARRAY_NAME (has_failed) (const struct DYNARRAY_STRUCT *list)
+{
+  return list->u.dynarray_header.allocated == __dynarray_error_marker ();
+}
+
+/* Mark the dynamic array as failed.  All elements are deallocated as
+   a side effect.  */
+_GL_ATTRIBUTE_NONNULL ((1))
+static void
+DYNARRAY_NAME (mark_failed) (struct DYNARRAY_STRUCT *list)
+{
+  DYNARRAY_NAME (free__elements__)
+    (list->u.dynarray_header.array, list->u.dynarray_header.used);
+  DYNARRAY_NAME (free__array__) (list);
+  list->u.dynarray_header.array = DYNARRAY_SCRATCH (list);
+  list->u.dynarray_header.used = 0;
+  list->u.dynarray_header.allocated = __dynarray_error_marker ();
+}
+
+/* Return the number of elements which have been added to the dynamic
+   array.  */
+_GL_ATTRIBUTE_NONNULL ((1))
+static inline size_t
+DYNARRAY_NAME (size) (const struct DYNARRAY_STRUCT *list)
+{
+  return list->u.dynarray_header.used;
+}
+
+/* Return a pointer to the array element at INDEX.  Terminate the
+   process if INDEX is out of bounds.  */
+_GL_ATTRIBUTE_NONNULL ((1))
+static inline DYNARRAY_ELEMENT *
+DYNARRAY_NAME (at) (struct DYNARRAY_STRUCT *list, size_t index)
+{
+  if (_GL_UNLIKELY (index >= DYNARRAY_NAME (size) (list)))
+    __libc_dynarray_at_failure (DYNARRAY_NAME (size) (list), index);
+  return list->u.dynarray_header.array + index;
+}
+
+/* Return a pointer to the first array element, if any.  For a
+   zero-length array, the pointer can be NULL even though the dynamic
+   array has not entered the failure state.  */
+_GL_ATTRIBUTE_NONNULL ((1))
+static inline DYNARRAY_ELEMENT *
+DYNARRAY_NAME (begin) (struct DYNARRAY_STRUCT *list)
+{
+  return list->u.dynarray_header.array;
+}
+
+/* Return a pointer one element past the last array element.  For a
+   zero-length array, the pointer can be NULL even though the dynamic
+   array has not entered the failure state.  */
+_GL_ATTRIBUTE_NONNULL ((1))
+static inline DYNARRAY_ELEMENT *
+DYNARRAY_NAME (end) (struct DYNARRAY_STRUCT *list)
+{
+  return list->u.dynarray_header.array + list->u.dynarray_header.used;
+}
+
+/* Internal function.  Slow path for the add function below.  */
+static void
+DYNARRAY_NAME (add__) (struct DYNARRAY_STRUCT *list, DYNARRAY_ELEMENT item)
+{
+  if (_GL_UNLIKELY
+      (!__libc_dynarray_emplace_enlarge (&list->u.dynarray_abstract,
+                                         DYNARRAY_SCRATCH (list),
+                                         sizeof (DYNARRAY_ELEMENT))))
+    {
+      DYNARRAY_NAME (mark_failed) (list);
+      return;
+    }
+
+  /* Copy the new element and increase the array length.  */
+  list->u.dynarray_header.array[list->u.dynarray_header.used++] = item;
+}
+
+/* Add ITEM at the end of the array, enlarging it by one element.
+   Mark *LIST as failed if the dynamic array allocation size cannot be
+   increased.  */
+_GL_ATTRIBUTE_NONNULL ((1))
+static inline void
+DYNARRAY_NAME (add) (struct DYNARRAY_STRUCT *list, DYNARRAY_ELEMENT item)
+{
+  /* Do nothing in case of previous error.  */
+  if (DYNARRAY_NAME (has_failed) (list))
+    return;
+
+  /* Enlarge the array if necessary.  */
+  if (_GL_UNLIKELY (list->u.dynarray_header.used
+                        == list->u.dynarray_header.allocated))
+    {
+      DYNARRAY_NAME (add__) (list, item);
+      return;
+    }
+
+  /* Copy the new element and increase the array length.  */
+  list->u.dynarray_header.array[list->u.dynarray_header.used++] = item;
+}
+
+/* Internal function.  Building block for the emplace functions below.
+   Assumes space for one more element in *LIST.  */
+static inline DYNARRAY_ELEMENT *
+DYNARRAY_NAME (emplace__tail__) (struct DYNARRAY_STRUCT *list)
+{
+  DYNARRAY_ELEMENT *result
+    = &list->u.dynarray_header.array[list->u.dynarray_header.used];
+  ++list->u.dynarray_header.used;
+#if defined (DYNARRAY_ELEMENT_INIT)
+  DYNARRAY_ELEMENT_INIT (result);
+#elif defined (DYNARRAY_ELEMENT_FREE)
+  memset (result, 0, sizeof (*result));
+#endif
+  return result;
+}
+
+/* Internal function.  Slow path for the emplace function below.  */
+static DYNARRAY_ELEMENT *
+DYNARRAY_NAME (emplace__) (struct DYNARRAY_STRUCT *list)
+{
+  if (_GL_UNLIKELY
+      (!__libc_dynarray_emplace_enlarge (&list->u.dynarray_abstract,
+                                         DYNARRAY_SCRATCH (list),
+                                         sizeof (DYNARRAY_ELEMENT))))
+    {
+      DYNARRAY_NAME (mark_failed) (list);
+      return NULL;
+    }
+  return DYNARRAY_NAME (emplace__tail__) (list);
+}
+
+/* Allocate a place for a new element in *LIST and return a pointer to
+   it.  The pointer can be NULL if the dynamic array cannot be
+   enlarged due to a memory allocation failure.  */
+_GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_NODISCARD
+_GL_ATTRIBUTE_NONNULL ((1))
+static
+/* Avoid inlining with the larger initialization code.  */
+#if !(defined (DYNARRAY_ELEMENT_INIT) || defined (DYNARRAY_ELEMENT_FREE))
+inline
+#endif
+DYNARRAY_ELEMENT *
+DYNARRAY_NAME (emplace) (struct DYNARRAY_STRUCT *list)
+{
+  /* Do nothing in case of previous error.  */
+  if (DYNARRAY_NAME (has_failed) (list))
+    return NULL;
+
+  /* Enlarge the array if necessary.  */
+  if (_GL_UNLIKELY (list->u.dynarray_header.used
+                        == list->u.dynarray_header.allocated))
+    return (DYNARRAY_NAME (emplace__) (list));
+  return DYNARRAY_NAME (emplace__tail__) (list);
+}
+
+/* Change the size of *LIST to SIZE.  If SIZE is larger than the
+   existing size, new elements are added (which can be initialized).
+   Otherwise, the list is truncated, and elements are freed.  Return
+   false on memory allocation failure (and mark *LIST as failed).  */
+_GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_NONNULL ((1))
+static bool
+DYNARRAY_NAME (resize) (struct DYNARRAY_STRUCT *list, size_t size)
+{
+  if (size > list->u.dynarray_header.used)
+    {
+      bool ok;
+#if defined (DYNARRAY_ELEMENT_INIT)
+      /* The new elements have to be initialized.  */
+      size_t old_size = list->u.dynarray_header.used;
+      ok = __libc_dynarray_resize (&list->u.dynarray_abstract,
+                                   size, DYNARRAY_SCRATCH (list),
+                                   sizeof (DYNARRAY_ELEMENT));
+      if (ok)
+        for (size_t i = old_size; i < size; ++i)
+          {
+            DYNARRAY_ELEMENT_INIT (&list->u.dynarray_header.array[i]);
+          }
+#elif defined (DYNARRAY_ELEMENT_FREE)
+      /* Zero initialization is needed so that the elements can be
+         safely freed.  */
+      ok = __libc_dynarray_resize_clear
+        (&list->u.dynarray_abstract, size,
+         DYNARRAY_SCRATCH (list), sizeof (DYNARRAY_ELEMENT));
+#else
+      ok =  __libc_dynarray_resize (&list->u.dynarray_abstract,
+                                    size, DYNARRAY_SCRATCH (list),
+                                    sizeof (DYNARRAY_ELEMENT));
+#endif
+      if (_GL_UNLIKELY (!ok))
+        DYNARRAY_NAME (mark_failed) (list);
+      return ok;
+    }
+  else
+    {
+      /* The list has shrunk in size.  Free the removed elements.  */
+      DYNARRAY_NAME (free__elements__)
+        (list->u.dynarray_header.array + size,
+         list->u.dynarray_header.used - size);
+      list->u.dynarray_header.used = size;
+      return true;
+    }
+}
+
+/* Remove the last element of LIST if it is present.  */
+_GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_NONNULL ((1))
+static void
+DYNARRAY_NAME (remove_last) (struct DYNARRAY_STRUCT *list)
+{
+  /* used > 0 implies that the array is the non-failed state.  */
+  if (list->u.dynarray_header.used > 0)
+    {
+      size_t new_length = list->u.dynarray_header.used - 1;
+#ifdef DYNARRAY_ELEMENT_FREE
+      DYNARRAY_ELEMENT_FREE (&list->u.dynarray_header.array[new_length]);
+#endif
+      list->u.dynarray_header.used = new_length;
+    }
+}
+
+/* Remove all elements from the list.  The elements are freed, but the
+   list itself is not.  */
+_GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_NONNULL ((1))
+static void
+DYNARRAY_NAME (clear) (struct DYNARRAY_STRUCT *list)
+{
+  /* free__elements__ does nothing if the list is in the failed
+     state.  */
+  DYNARRAY_NAME (free__elements__)
+    (list->u.dynarray_header.array, list->u.dynarray_header.used);
+  list->u.dynarray_header.used = 0;
+}
+
+#ifdef DYNARRAY_FINAL_TYPE
+/* Transfer the dynamic array to a permanent location at *RESULT.
+   Returns true on success on false on allocation failure.  In either
+   case, *LIST is re-initialized and can be reused.  A NULL pointer is
+   stored in *RESULT if LIST refers to an empty list.  On success, the
+   pointer in *RESULT is heap-allocated and must be deallocated using
+   free.  */
+_GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_NODISCARD
+_GL_ATTRIBUTE_NONNULL ((1, 2))
+static bool
+DYNARRAY_NAME (finalize) (struct DYNARRAY_STRUCT *list,
+                          DYNARRAY_FINAL_TYPE *result)
+{
+  struct dynarray_finalize_result res;
+  if (__libc_dynarray_finalize (&list->u.dynarray_abstract,
+                                DYNARRAY_SCRATCH (list),
+                                sizeof (DYNARRAY_ELEMENT), &res))
+    {
+      /* On success, the result owns all the data.  */
+      DYNARRAY_NAME (init) (list);
+      *result = (DYNARRAY_FINAL_TYPE) { res.array, res.length };
+      return true;
+    }
+  else
+    {
+      /* On error, we need to free all data.  */
+      DYNARRAY_FREE (list);
+      errno = ENOMEM;
+      return false;
+    }
+}
+#else /* !DYNARRAY_FINAL_TYPE */
+/* Transfer the dynamic array to a heap-allocated array and return a
+   pointer to it.  The pointer is NULL if memory allocation fails, or
+   if the array is empty, so this function should be used only for
+   arrays which are known not be empty (usually because they always
+   have a sentinel at the end).  If LENGTHP is not NULL, the array
+   length is written to *LENGTHP.  *LIST is re-initialized and can be
+   reused.  */
+_GL_ATTRIBUTE_MAYBE_UNUSED _GL_ATTRIBUTE_NODISCARD
+_GL_ATTRIBUTE_NONNULL ((1))
+static DYNARRAY_ELEMENT *
+DYNARRAY_NAME (finalize) (struct DYNARRAY_STRUCT *list, size_t *lengthp)
+{
+  struct dynarray_finalize_result res;
+  if (__libc_dynarray_finalize (&list->u.dynarray_abstract,
+                                DYNARRAY_SCRATCH (list),
+                                sizeof (DYNARRAY_ELEMENT), &res))
+    {
+      /* On success, the result owns all the data.  */
+      DYNARRAY_NAME (init) (list);
+      if (lengthp != NULL)
+        *lengthp = res.length;
+      return res.array;
+    }
+  else
+    {
+      /* On error, we need to free all data.  */
+      DYNARRAY_FREE (list);
+      errno = ENOMEM;
+      return NULL;
+    }
+}
+#endif /* !DYNARRAY_FINAL_TYPE */
+
+/* Undo macro definitions.  */
+
+#undef DYNARRAY_CONCAT0
+#undef DYNARRAY_CONCAT1
+#undef DYNARRAY_NAME
+#undef DYNARRAY_SCRATCH
+#undef DYNARRAY_HAVE_SCRATCH
+
+#undef DYNARRAY_STRUCT
+#undef DYNARRAY_ELEMENT
+#undef DYNARRAY_PREFIX
+#undef DYNARRAY_ELEMENT_FREE
+#undef DYNARRAY_ELEMENT_INIT
+#undef DYNARRAY_INITIAL_SIZE
+#undef DYNARRAY_FINAL_TYPE
diff --git a/gl/malloc/dynarray.gl.h b/gl/malloc/dynarray.gl.h
new file mode 100644
index 0000000..34987e7
--- /dev/null
+++ b/gl/malloc/dynarray.gl.h
@@ -0,0 +1,173 @@
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* Type-safe arrays which grow dynamically.  Shared definitions.
+   Copyright (C) 2017-2023 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/>.  */
+
+/* To use the dynarray facility, you need to include
+   <malloc/dynarray-skeleton.c> and define the parameter macros
+   documented in that file.
+
+   A minimal example which provides a growing list of integers can be
+   defined like this:
+
+     struct int_array
+     {
+       // Pointer to result array followed by its length,
+       // as required by DYNARRAY_FINAL_TYPE.
+       int *array;
+       size_t length;
+     };
+
+     #define DYNARRAY_STRUCT dynarray_int
+     #define DYNARRAY_ELEMENT int
+     #define DYNARRAY_PREFIX dynarray_int_
+     #define DYNARRAY_FINAL_TYPE struct int_array
+     #include <malloc/dynarray-skeleton.c>
+
+   To create a three-element array with elements 1, 2, 3, use this
+   code:
+
+     struct dynarray_int dyn;
+     dynarray_int_init (&dyn);
+     for (int i = 1; i <= 3; ++i)
+       {
+         int *place = dynarray_int_emplace (&dyn);
+         assert (place != NULL);
+         *place = i;
+       }
+     struct int_array result;
+     bool ok = dynarray_int_finalize (&dyn, &result);
+     assert (ok);
+     assert (result.length == 3);
+     assert (result.array[0] == 1);
+     assert (result.array[1] == 2);
+     assert (result.array[2] == 3);
+     free (result.array);
+
+   If the elements contain resources which must be freed, define
+   DYNARRAY_ELEMENT_FREE appropriately, like this:
+
+     struct str_array
+     {
+       char **array;
+       size_t length;
+     };
+
+     #define DYNARRAY_STRUCT dynarray_str
+     #define DYNARRAY_ELEMENT char *
+     #define DYNARRAY_ELEMENT_FREE(ptr) free (*ptr)
+     #define DYNARRAY_PREFIX dynarray_str_
+     #define DYNARRAY_FINAL_TYPE struct str_array
+     #include <malloc/dynarray-skeleton.c>
+
+   Compared to scratch buffers, dynamic arrays have the following
+   features:
+
+   - They have an element type, and are not just an untyped buffer of
+     bytes.
+
+   - When growing, previously stored elements are preserved.  (It is
+     expected that scratch_buffer_grow_preserve and
+     scratch_buffer_set_array_size eventually go away because all
+     current users are moved to dynamic arrays.)
+
+   - Scratch buffers have a more aggressive growth policy because
+     growing them typically means a retry of an operation (across an
+     NSS service module boundary), which is expensive.
+
+   - For the same reason, scratch buffers have a much larger initial
+     stack allocation.  */
+
+#ifndef _DYNARRAY_H
+#define _DYNARRAY_H
+
+#include <stddef.h>
+#include <string.h>
+
+struct dynarray_header
+{
+  size_t used;
+  size_t allocated;
+  void *array;
+};
+
+/* Marker used in the allocated member to indicate that an error was
+   encountered.  */
+static inline size_t
+__dynarray_error_marker (void)
+{
+  return -1;
+}
+
+/* Internal function.  See the has_failed function in
+   dynarray-skeleton.c.  */
+static inline bool
+__dynarray_error (struct dynarray_header *list)
+{
+  return list->allocated == __dynarray_error_marker ();
+}
+
+/* Internal function.  Enlarge the dynamically allocated area of the
+   array to make room for one more element.  SCRATCH is a pointer to
+   the scratch area (which is not heap-allocated and must not be
+   freed).  ELEMENT_SIZE is the size, in bytes, of one element.
+   Return false on failure, true on success.  */
+bool __libc_dynarray_emplace_enlarge (struct dynarray_header *,
+                                      void *scratch, size_t element_size);
+
+/* Internal function.  Enlarge the dynamically allocated area of the
+   array to make room for at least SIZE elements (which must be larger
+   than the existing used part of the dynamic array).  SCRATCH is a
+   pointer to the scratch area (which is not heap-allocated and must
+   not be freed).  ELEMENT_SIZE is the size, in bytes, of one element.
+   Return false on failure, true on success.  */
+bool __libc_dynarray_resize (struct dynarray_header *, size_t size,
+                             void *scratch, size_t element_size);
+
+/* Internal function.  Like __libc_dynarray_resize, but clear the new
+   part of the dynamic array.  */
+bool __libc_dynarray_resize_clear (struct dynarray_header *, size_t size,
+                                   void *scratch, size_t element_size);
+
+/* Internal type.  */
+struct dynarray_finalize_result
+{
+  void *array;
+  size_t length;
+};
+
+/* Internal function.  Copy the dynamically-allocated area to an
+   explicitly-sized heap allocation.  SCRATCH is a pointer to the
+   embedded scratch space.  ELEMENT_SIZE is the size, in bytes, of the
+   element type.  On success, true is returned, and pointer and length
+   are written to *RESULT.  On failure, false is returned.  The caller
+   has to take care of some of the memory management; this function is
+   expected to be called from dynarray-skeleton.c.  */
+bool __libc_dynarray_finalize (struct dynarray_header *list, void *scratch,
+                               size_t element_size,
+                               struct dynarray_finalize_result *result);
+
+
+/* Internal function.  Terminate the process after an index error.
+   SIZE is the number of elements of the dynamic array.  INDEX is the
+   lookup index which triggered the failure.  */
+_Noreturn void __libc_dynarray_at_failure (size_t size, size_t index);
+
+#ifndef _ISOMAC
+#endif
+
+#endif /* _DYNARRAY_H */
diff --git a/gl/sha1.c b/gl/sha1.c
deleted file mode 100644
index 80f0b7a..0000000
--- a/gl/sha1.c
+++ /dev/null
@@ -1,360 +0,0 @@
-/* sha1.c - Functions to compute SHA1 message digest of files or
-   memory blocks according to the NIST specification FIPS-180-1.
-
-   Copyright (C) 2000-2001, 2003-2006, 2008-2023 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
-   published by the Free Software Foundation; either version 2.1 of the
-   License, or (at your option) any later version.
-
-   This file 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-/* Written by Scott G. Miller
-   Credits:
-      Robert Klep <robert at ilse.nl>  -- Expansion function fix
-*/
-
-#include <config.h>
-
-/* Specification.  */
-#if HAVE_OPENSSL_SHA1
-# define GL_OPENSSL_INLINE _GL_EXTERN_INLINE
-#endif
-#include "sha1.h"
-
-#include <stdint.h>
-#include <string.h>
-
-#include <byteswap.h>
-#ifdef WORDS_BIGENDIAN
-# define SWAP(n) (n)
-#else
-# define SWAP(n) bswap_32 (n)
-#endif
-
-#if ! HAVE_OPENSSL_SHA1
-
-/* This array contains the bytes used to pad the buffer to the next
-   64-byte boundary.  (RFC 1321, 3.1: Step 1)  */
-static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ...  */ };
-
-
-/* Take a pointer to a 160 bit block of data (five 32 bit ints) and
-   initialize it to the start constants of the SHA1 algorithm.  This
-   must be called before using hash in the call to sha1_hash.  */
-void
-sha1_init_ctx (struct sha1_ctx *ctx)
-{
-  ctx->A = 0x67452301;
-  ctx->B = 0xefcdab89;
-  ctx->C = 0x98badcfe;
-  ctx->D = 0x10325476;
-  ctx->E = 0xc3d2e1f0;
-
-  ctx->total[0] = ctx->total[1] = 0;
-  ctx->buflen = 0;
-}
-
-/* Copy the 4 byte value from v into the memory location pointed to by *cp,
-   If your architecture allows unaligned access this is equivalent to
-   * (uint32_t *) cp = v  */
-static void
-set_uint32 (char *cp, uint32_t v)
-{
-  memcpy (cp, &v, sizeof v);
-}
-
-/* Put result from CTX in first 20 bytes following RESBUF.  The result
-   must be in little endian byte order.  */
-void *
-sha1_read_ctx (const struct sha1_ctx *ctx, void *resbuf)
-{
-  char *r = resbuf;
-  set_uint32 (r + 0 * sizeof ctx->A, SWAP (ctx->A));
-  set_uint32 (r + 1 * sizeof ctx->B, SWAP (ctx->B));
-  set_uint32 (r + 2 * sizeof ctx->C, SWAP (ctx->C));
-  set_uint32 (r + 3 * sizeof ctx->D, SWAP (ctx->D));
-  set_uint32 (r + 4 * sizeof ctx->E, SWAP (ctx->E));
-
-  return resbuf;
-}
-
-/* Process the remaining bytes in the internal buffer and the usual
-   prolog according to the standard and write the result to RESBUF.  */
-void *
-sha1_finish_ctx (struct sha1_ctx *ctx, void *resbuf)
-{
-  /* Take yet unprocessed bytes into account.  */
-  uint32_t bytes = ctx->buflen;
-  size_t size = (bytes < 56) ? 64 / 4 : 64 * 2 / 4;
-
-  /* Now count remaining bytes.  */
-  ctx->total[0] += bytes;
-  if (ctx->total[0] < bytes)
-    ++ctx->total[1];
-
-  /* Put the 64-bit file length in *bits* at the end of the buffer.  */
-  ctx->buffer[size - 2] = SWAP ((ctx->total[1] << 3) | (ctx->total[0] >> 29));
-  ctx->buffer[size - 1] = SWAP (ctx->total[0] << 3);
-
-  memcpy (&((char *) ctx->buffer)[bytes], fillbuf, (size - 2) * 4 - bytes);
-
-  /* Process last bytes.  */
-  sha1_process_block (ctx->buffer, size * 4, ctx);
-
-  return sha1_read_ctx (ctx, resbuf);
-}
-
-/* Compute SHA1 message digest for LEN bytes beginning at BUFFER.  The
-   result is always in little endian byte order, so that a byte-wise
-   output yields to the wanted ASCII representation of the message
-   digest.  */
-void *
-sha1_buffer (const char *buffer, size_t len, void *resblock)
-{
-  struct sha1_ctx ctx;
-
-  /* Initialize the computation context.  */
-  sha1_init_ctx (&ctx);
-
-  /* Process whole buffer but last len % 64 bytes.  */
-  sha1_process_bytes (buffer, len, &ctx);
-
-  /* Put result in desired memory area.  */
-  return sha1_finish_ctx (&ctx, resblock);
-}
-
-void
-sha1_process_bytes (const void *buffer, size_t len, struct sha1_ctx *ctx)
-{
-  /* When we already have some bits in our internal buffer concatenate
-     both inputs first.  */
-  if (ctx->buflen != 0)
-    {
-      size_t left_over = ctx->buflen;
-      size_t add = 128 - left_over > len ? len : 128 - left_over;
-
-      memcpy (&((char *) ctx->buffer)[left_over], buffer, add);
-      ctx->buflen += add;
-
-      if (ctx->buflen > 64)
-        {
-          sha1_process_block (ctx->buffer, ctx->buflen & ~63, ctx);
-
-          ctx->buflen &= 63;
-          /* The regions in the following copy operation cannot overlap,
-             because ctx->buflen < 64 ≤ (left_over + add) & ~63.  */
-          memcpy (ctx->buffer,
-                  &((char *) ctx->buffer)[(left_over + add) & ~63],
-                  ctx->buflen);
-        }
-
-      buffer = (const char *) buffer + add;
-      len -= add;
-    }
-
-  /* Process available complete blocks.  */
-  if (len >= 64)
-    {
-#if !(_STRING_ARCH_unaligned || _STRING_INLINE_unaligned)
-# define UNALIGNED_P(p) ((uintptr_t) (p) % alignof (uint32_t) != 0)
-      if (UNALIGNED_P (buffer))
-        while (len > 64)
-          {
-            sha1_process_block (memcpy (ctx->buffer, buffer, 64), 64, ctx);
-            buffer = (const char *) buffer + 64;
-            len -= 64;
-          }
-      else
-#endif
-        {
-          sha1_process_block (buffer, len & ~63, ctx);
-          buffer = (const char *) buffer + (len & ~63);
-          len &= 63;
-        }
-    }
-
-  /* Move remaining bytes in internal buffer.  */
-  if (len > 0)
-    {
-      size_t left_over = ctx->buflen;
-
-      memcpy (&((char *) ctx->buffer)[left_over], buffer, len);
-      left_over += len;
-      if (left_over >= 64)
-        {
-          sha1_process_block (ctx->buffer, 64, ctx);
-          left_over -= 64;
-          /* The regions in the following copy operation cannot overlap,
-             because left_over ≤ 64.  */
-          memcpy (ctx->buffer, &ctx->buffer[16], left_over);
-        }
-      ctx->buflen = left_over;
-    }
-}
-
-/* --- Code below is the primary difference between md5.c and sha1.c --- */
-
-/* SHA1 round constants */
-#define K1 0x5a827999
-#define K2 0x6ed9eba1
-#define K3 0x8f1bbcdc
-#define K4 0xca62c1d6
-
-/* Round functions.  Note that F2 is the same as F4.  */
-#define F1(B,C,D) ( D ^ ( B & ( C ^ D ) ) )
-#define F2(B,C,D) (B ^ C ^ D)
-#define F3(B,C,D) ( ( B & C ) | ( D & ( B | C ) ) )
-#define F4(B,C,D) (B ^ C ^ D)
-
-/* Process LEN bytes of BUFFER, accumulating context into CTX.
-   It is assumed that LEN % 64 == 0.
-   Most of this code comes from GnuPG's cipher/sha1.c.  */
-
-void
-sha1_process_block (const void *buffer, size_t len, struct sha1_ctx *ctx)
-{
-  const uint32_t *words = buffer;
-  size_t nwords = len / sizeof (uint32_t);
-  const uint32_t *endp = words + nwords;
-  uint32_t x[16];
-  uint32_t a = ctx->A;
-  uint32_t b = ctx->B;
-  uint32_t c = ctx->C;
-  uint32_t d = ctx->D;
-  uint32_t e = ctx->E;
-  uint32_t lolen = len;
-
-  /* First increment the byte count.  RFC 1321 specifies the possible
-     length of the file up to 2^64 bits.  Here we only compute the
-     number of bytes.  Do a double word increment.  */
-  ctx->total[0] += lolen;
-  ctx->total[1] += (len >> 31 >> 1) + (ctx->total[0] < lolen);
-
-#define rol(x, n) (((x) << (n)) | ((uint32_t) (x) >> (32 - (n))))
-
-#define M(I) ( tm =   x[I&0x0f] ^ x[(I-14)&0x0f] \
-                    ^ x[(I-8)&0x0f] ^ x[(I-3)&0x0f] \
-               , (x[I&0x0f] = rol(tm, 1)) )
-
-#define R(A,B,C,D,E,F,K,M)  do { E += rol( A, 5 )     \
-                                      + F( B, C, D )  \
-                                      + K             \
-                                      + M;            \
-                                 B = rol( B, 30 );    \
-                               } while(0)
-
-  while (words < endp)
-    {
-      uint32_t tm;
-      int t;
-      for (t = 0; t < 16; t++)
-        {
-          x[t] = SWAP (*words);
-          words++;
-        }
-
-      R( a, b, c, d, e, F1, K1, x[ 0] );
-      R( e, a, b, c, d, F1, K1, x[ 1] );
-      R( d, e, a, b, c, F1, K1, x[ 2] );
-      R( c, d, e, a, b, F1, K1, x[ 3] );
-      R( b, c, d, e, a, F1, K1, x[ 4] );
-      R( a, b, c, d, e, F1, K1, x[ 5] );
-      R( e, a, b, c, d, F1, K1, x[ 6] );
-      R( d, e, a, b, c, F1, K1, x[ 7] );
-      R( c, d, e, a, b, F1, K1, x[ 8] );
-      R( b, c, d, e, a, F1, K1, x[ 9] );
-      R( a, b, c, d, e, F1, K1, x[10] );
-      R( e, a, b, c, d, F1, K1, x[11] );
-      R( d, e, a, b, c, F1, K1, x[12] );
-      R( c, d, e, a, b, F1, K1, x[13] );
-      R( b, c, d, e, a, F1, K1, x[14] );
-      R( a, b, c, d, e, F1, K1, x[15] );
-      R( e, a, b, c, d, F1, K1, M(16) );
-      R( d, e, a, b, c, F1, K1, M(17) );
-      R( c, d, e, a, b, F1, K1, M(18) );
-      R( b, c, d, e, a, F1, K1, M(19) );
-      R( a, b, c, d, e, F2, K2, M(20) );
-      R( e, a, b, c, d, F2, K2, M(21) );
-      R( d, e, a, b, c, F2, K2, M(22) );
-      R( c, d, e, a, b, F2, K2, M(23) );
-      R( b, c, d, e, a, F2, K2, M(24) );
-      R( a, b, c, d, e, F2, K2, M(25) );
-      R( e, a, b, c, d, F2, K2, M(26) );
-      R( d, e, a, b, c, F2, K2, M(27) );
-      R( c, d, e, a, b, F2, K2, M(28) );
-      R( b, c, d, e, a, F2, K2, M(29) );
-      R( a, b, c, d, e, F2, K2, M(30) );
-      R( e, a, b, c, d, F2, K2, M(31) );
-      R( d, e, a, b, c, F2, K2, M(32) );
-      R( c, d, e, a, b, F2, K2, M(33) );
-      R( b, c, d, e, a, F2, K2, M(34) );
-      R( a, b, c, d, e, F2, K2, M(35) );
-      R( e, a, b, c, d, F2, K2, M(36) );
-      R( d, e, a, b, c, F2, K2, M(37) );
-      R( c, d, e, a, b, F2, K2, M(38) );
-      R( b, c, d, e, a, F2, K2, M(39) );
-      R( a, b, c, d, e, F3, K3, M(40) );
-      R( e, a, b, c, d, F3, K3, M(41) );
-      R( d, e, a, b, c, F3, K3, M(42) );
-      R( c, d, e, a, b, F3, K3, M(43) );
-      R( b, c, d, e, a, F3, K3, M(44) );
-      R( a, b, c, d, e, F3, K3, M(45) );
-      R( e, a, b, c, d, F3, K3, M(46) );
-      R( d, e, a, b, c, F3, K3, M(47) );
-      R( c, d, e, a, b, F3, K3, M(48) );
-      R( b, c, d, e, a, F3, K3, M(49) );
-      R( a, b, c, d, e, F3, K3, M(50) );
-      R( e, a, b, c, d, F3, K3, M(51) );
-      R( d, e, a, b, c, F3, K3, M(52) );
-      R( c, d, e, a, b, F3, K3, M(53) );
-      R( b, c, d, e, a, F3, K3, M(54) );
-      R( a, b, c, d, e, F3, K3, M(55) );
-      R( e, a, b, c, d, F3, K3, M(56) );
-      R( d, e, a, b, c, F3, K3, M(57) );
-      R( c, d, e, a, b, F3, K3, M(58) );
-      R( b, c, d, e, a, F3, K3, M(59) );
-      R( a, b, c, d, e, F4, K4, M(60) );
-      R( e, a, b, c, d, F4, K4, M(61) );
-      R( d, e, a, b, c, F4, K4, M(62) );
-      R( c, d, e, a, b, F4, K4, M(63) );
-      R( b, c, d, e, a, F4, K4, M(64) );
-      R( a, b, c, d, e, F4, K4, M(65) );
-      R( e, a, b, c, d, F4, K4, M(66) );
-      R( d, e, a, b, c, F4, K4, M(67) );
-      R( c, d, e, a, b, F4, K4, M(68) );
-      R( b, c, d, e, a, F4, K4, M(69) );
-      R( a, b, c, d, e, F4, K4, M(70) );
-      R( e, a, b, c, d, F4, K4, M(71) );
-      R( d, e, a, b, c, F4, K4, M(72) );
-      R( c, d, e, a, b, F4, K4, M(73) );
-      R( b, c, d, e, a, F4, K4, M(74) );
-      R( a, b, c, d, e, F4, K4, M(75) );
-      R( e, a, b, c, d, F4, K4, M(76) );
-      R( d, e, a, b, c, F4, K4, M(77) );
-      R( c, d, e, a, b, F4, K4, M(78) );
-      R( b, c, d, e, a, F4, K4, M(79) );
-
-      a = ctx->A += a;
-      b = ctx->B += b;
-      c = ctx->C += c;
-      d = ctx->D += d;
-      e = ctx->E += e;
-    }
-}
-
-#endif
-
-/*
- * Hey Emacs!
- * Local Variables:
- * coding: utf-8
- * End:
- */
diff --git a/gl/sha1-stream.c b/gl/sha256-stream.c
similarity index 66%
rename from gl/sha1-stream.c
rename to gl/sha256-stream.c
index 393d9ae..0e83380 100644
--- a/gl/sha1-stream.c
+++ b/gl/sha256-stream.c
@@ -1,7 +1,7 @@
-/* sha1.c - Functions to compute SHA1 message digest of files or
-   memory blocks according to the NIST specification FIPS-180-1.
+/* sha256.c - Functions to compute SHA256 and SHA224 message digest of files or
+   memory blocks according to the NIST specification FIPS-180-2.
 
-   Copyright (C) 2000-2001, 2003-2006, 2008-2023 Free Software Foundation, Inc.
+   Copyright (C) 2005-2006, 2008-2023 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
@@ -16,18 +16,17 @@
    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
-/* Written by Scott G. Miller
-   Credits:
-      Robert Klep <robert at ilse.nl>  -- Expansion function fix
+/* Written by David Madore, considerably copypasting from
+   Scott G. Miller's sha1.c
 */
 
 #include <config.h>
 
 /* Specification.  */
-#if HAVE_OPENSSL_SHA1
+#if HAVE_OPENSSL_SHA256
 # define GL_OPENSSL_INLINE _GL_EXTERN_INLINE
 #endif
-#include "sha1.h"
+#include "sha256.h"
 
 #include <stdlib.h>
 
@@ -42,13 +41,16 @@
 # error "invalid BLOCKSIZE"
 #endif
 
-/* Compute SHA1 message digest for bytes read from STREAM.  The
-   resulting message digest number will be written into the 20 bytes
-   beginning at RESBLOCK.  */
-int
-sha1_stream (FILE *stream, void *resblock)
+/* Compute message digest for bytes read from STREAM using algorithm ALG.
+   Write the message digest into RESBLOCK, which contains HASHLEN bytes.
+   The initial and finishing operations are INIT_CTX and FINISH_CTX.
+   Return zero if and only if successful.  */
+static int
+shaxxx_stream (FILE *stream, char const *alg, void *resblock,
+               ssize_t hashlen, void (*init_ctx) (struct sha256_ctx *),
+               void *(*finish_ctx) (struct sha256_ctx *, void *))
 {
-  switch (afalg_stream (stream, "sha1", resblock, SHA1_DIGEST_SIZE))
+  switch (afalg_stream (stream, alg, resblock, hashlen))
     {
     case 0: return 0;
     case -EIO: return 1;
@@ -58,8 +60,8 @@ sha1_stream (FILE *stream, void *resblock)
   if (!buffer)
     return 1;
 
-  struct sha1_ctx ctx;
-  sha1_init_ctx (&ctx);
+  struct sha256_ctx ctx;
+  init_ctx (&ctx);
   size_t sum;
 
   /* Iterate over full file contents.  */
@@ -106,21 +108,35 @@ sha1_stream (FILE *stream, void *resblock)
       /* Process buffer with BLOCKSIZE bytes.  Note that
                         BLOCKSIZE % 64 == 0
        */
-      sha1_process_block (buffer, BLOCKSIZE, &ctx);
+      sha256_process_block (buffer, BLOCKSIZE, &ctx);
     }
 
  process_partial_block:;
 
   /* Process any remaining bytes.  */
   if (sum > 0)
-    sha1_process_bytes (buffer, sum, &ctx);
+    sha256_process_bytes (buffer, sum, &ctx);
 
   /* Construct result in desired memory.  */
-  sha1_finish_ctx (&ctx, resblock);
+  finish_ctx (&ctx, resblock);
   free (buffer);
   return 0;
 }
 
+int
+sha256_stream (FILE *stream, void *resblock)
+{
+  return shaxxx_stream (stream, "sha256", resblock, SHA256_DIGEST_SIZE,
+                        sha256_init_ctx, sha256_finish_ctx);
+}
+
+int
+sha224_stream (FILE *stream, void *resblock)
+{
+  return shaxxx_stream (stream, "sha224", resblock, SHA224_DIGEST_SIZE,
+                        sha224_init_ctx, sha224_finish_ctx);
+}
+
 /*
  * Hey Emacs!
  * Local Variables:
diff --git a/gl/sha256.c b/gl/sha256.c
new file mode 100644
index 0000000..e5fea02
--- /dev/null
+++ b/gl/sha256.c
@@ -0,0 +1,432 @@
+/* sha256.c - Functions to compute SHA256 and SHA224 message digest of files or
+   memory blocks according to the NIST specification FIPS-180-2.
+
+   Copyright (C) 2005-2006, 2008-2023 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
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
+
+   This file 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by David Madore, considerably copypasting from
+   Scott G. Miller's sha1.c
+*/
+
+#include <config.h>
+
+/* Specification.  */
+#if HAVE_OPENSSL_SHA256
+# define GL_OPENSSL_INLINE _GL_EXTERN_INLINE
+#endif
+#include "sha256.h"
+
+#include <stdint.h>
+#include <string.h>
+
+#include <byteswap.h>
+#ifdef WORDS_BIGENDIAN
+# define SWAP(n) (n)
+#else
+# define SWAP(n) bswap_32 (n)
+#endif
+
+#if ! HAVE_OPENSSL_SHA256
+
+/* This array contains the bytes used to pad the buffer to the next
+   64-byte boundary.  */
+static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ...  */ };
+
+
+/*
+  Takes a pointer to a 256 bit block of data (eight 32 bit ints) and
+  initializes it to the start constants of the SHA256 algorithm.  This
+  must be called before using hash in the call to sha256_hash
+*/
+void
+sha256_init_ctx (struct sha256_ctx *ctx)
+{
+  ctx->state[0] = 0x6a09e667UL;
+  ctx->state[1] = 0xbb67ae85UL;
+  ctx->state[2] = 0x3c6ef372UL;
+  ctx->state[3] = 0xa54ff53aUL;
+  ctx->state[4] = 0x510e527fUL;
+  ctx->state[5] = 0x9b05688cUL;
+  ctx->state[6] = 0x1f83d9abUL;
+  ctx->state[7] = 0x5be0cd19UL;
+
+  ctx->total[0] = ctx->total[1] = 0;
+  ctx->buflen = 0;
+}
+
+void
+sha224_init_ctx (struct sha256_ctx *ctx)
+{
+  ctx->state[0] = 0xc1059ed8UL;
+  ctx->state[1] = 0x367cd507UL;
+  ctx->state[2] = 0x3070dd17UL;
+  ctx->state[3] = 0xf70e5939UL;
+  ctx->state[4] = 0xffc00b31UL;
+  ctx->state[5] = 0x68581511UL;
+  ctx->state[6] = 0x64f98fa7UL;
+  ctx->state[7] = 0xbefa4fa4UL;
+
+  ctx->total[0] = ctx->total[1] = 0;
+  ctx->buflen = 0;
+}
+
+/* Copy the value from v into the memory location pointed to by *CP,
+   If your architecture allows unaligned access, this is equivalent to
+   * (__typeof__ (v) *) cp = v  */
+static void
+set_uint32 (char *cp, uint32_t v)
+{
+  memcpy (cp, &v, sizeof v);
+}
+
+/* Put result from CTX in first 32 bytes following RESBUF.
+   The result must be in little endian byte order.  */
+void *
+sha256_read_ctx (const struct sha256_ctx *ctx, void *resbuf)
+{
+  int i;
+  char *r = resbuf;
+
+  for (i = 0; i < 8; i++)
+    set_uint32 (r + i * sizeof ctx->state[0], SWAP (ctx->state[i]));
+
+  return resbuf;
+}
+
+void *
+sha224_read_ctx (const struct sha256_ctx *ctx, void *resbuf)
+{
+  int i;
+  char *r = resbuf;
+
+  for (i = 0; i < 7; i++)
+    set_uint32 (r + i * sizeof ctx->state[0], SWAP (ctx->state[i]));
+
+  return resbuf;
+}
+
+/* Process the remaining bytes in the internal buffer and the usual
+   prolog according to the standard and write the result to RESBUF.  */
+static void
+sha256_conclude_ctx (struct sha256_ctx *ctx)
+{
+  /* Take yet unprocessed bytes into account.  */
+  size_t bytes = ctx->buflen;
+  size_t size = (bytes < 56) ? 64 / 4 : 64 * 2 / 4;
+
+  /* Now count remaining bytes.  */
+  ctx->total[0] += bytes;
+  if (ctx->total[0] < bytes)
+    ++ctx->total[1];
+
+  /* Put the 64-bit file length in *bits* at the end of the buffer.
+     Use set_uint32 rather than a simple assignment, to avoid risk of
+     unaligned access.  */
+  set_uint32 ((char *) &ctx->buffer[size - 2],
+              SWAP ((ctx->total[1] << 3) | (ctx->total[0] >> 29)));
+  set_uint32 ((char *) &ctx->buffer[size - 1],
+              SWAP (ctx->total[0] << 3));
+
+  memcpy (&((char *) ctx->buffer)[bytes], fillbuf, (size - 2) * 4 - bytes);
+
+  /* Process last bytes.  */
+  sha256_process_block (ctx->buffer, size * 4, ctx);
+}
+
+void *
+sha256_finish_ctx (struct sha256_ctx *ctx, void *resbuf)
+{
+  sha256_conclude_ctx (ctx);
+  return sha256_read_ctx (ctx, resbuf);
+}
+
+void *
+sha224_finish_ctx (struct sha256_ctx *ctx, void *resbuf)
+{
+  sha256_conclude_ctx (ctx);
+  return sha224_read_ctx (ctx, resbuf);
+}
+
+/* Compute SHA256 message digest for LEN bytes beginning at BUFFER.  The
+   result is always in little endian byte order, so that a byte-wise
+   output yields to the wanted ASCII representation of the message
+   digest.  */
+void *
+sha256_buffer (const char *buffer, size_t len, void *resblock)
+{
+  struct sha256_ctx ctx;
+
+  /* Initialize the computation context.  */
+  sha256_init_ctx (&ctx);
+
+  /* Process whole buffer but last len % 64 bytes.  */
+  sha256_process_bytes (buffer, len, &ctx);
+
+  /* Put result in desired memory area.  */
+  return sha256_finish_ctx (&ctx, resblock);
+}
+
+void *
+sha224_buffer (const char *buffer, size_t len, void *resblock)
+{
+  struct sha256_ctx ctx;
+
+  /* Initialize the computation context.  */
+  sha224_init_ctx (&ctx);
+
+  /* Process whole buffer but last len % 64 bytes.  */
+  sha256_process_bytes (buffer, len, &ctx);
+
+  /* Put result in desired memory area.  */
+  return sha224_finish_ctx (&ctx, resblock);
+}
+
+void
+sha256_process_bytes (const void *buffer, size_t len, struct sha256_ctx *ctx)
+{
+  /* When we already have some bits in our internal buffer concatenate
+     both inputs first.  */
+  if (ctx->buflen != 0)
+    {
+      size_t left_over = ctx->buflen;
+      size_t add = 128 - left_over > len ? len : 128 - left_over;
+
+      memcpy (&((char *) ctx->buffer)[left_over], buffer, add);
+      ctx->buflen += add;
+
+      if (ctx->buflen > 64)
+        {
+          sha256_process_block (ctx->buffer, ctx->buflen & ~63, ctx);
+
+          ctx->buflen &= 63;
+          /* The regions in the following copy operation cannot overlap,
+             because ctx->buflen < 64 ≤ (left_over + add) & ~63.  */
+          memcpy (ctx->buffer,
+                  &((char *) ctx->buffer)[(left_over + add) & ~63],
+                  ctx->buflen);
+        }
+
+      buffer = (const char *) buffer + add;
+      len -= add;
+    }
+
+  /* Process available complete blocks.  */
+  if (len >= 64)
+    {
+#if !(_STRING_ARCH_unaligned || _STRING_INLINE_unaligned)
+# define UNALIGNED_P(p) ((uintptr_t) (p) % alignof (uint32_t) != 0)
+      if (UNALIGNED_P (buffer))
+        while (len > 64)
+          {
+            sha256_process_block (memcpy (ctx->buffer, buffer, 64), 64, ctx);
+            buffer = (const char *) buffer + 64;
+            len -= 64;
+          }
+      else
+#endif
+        {
+          sha256_process_block (buffer, len & ~63, ctx);
+          buffer = (const char *) buffer + (len & ~63);
+          len &= 63;
+        }
+    }
+
+  /* Move remaining bytes in internal buffer.  */
+  if (len > 0)
+    {
+      size_t left_over = ctx->buflen;
+
+      memcpy (&((char *) ctx->buffer)[left_over], buffer, len);
+      left_over += len;
+      if (left_over >= 64)
+        {
+          sha256_process_block (ctx->buffer, 64, ctx);
+          left_over -= 64;
+          /* The regions in the following copy operation cannot overlap,
+             because left_over ≤ 64.  */
+          memcpy (ctx->buffer, &ctx->buffer[16], left_over);
+        }
+      ctx->buflen = left_over;
+    }
+}
+
+/* --- Code below is the primary difference between sha1.c and sha256.c --- */
+
+/* SHA256 round constants */
+#define K(I) sha256_round_constants[I]
+static const uint32_t sha256_round_constants[64] = {
+  0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL,
+  0x3956c25bUL, 0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL,
+  0xd807aa98UL, 0x12835b01UL, 0x243185beUL, 0x550c7dc3UL,
+  0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL, 0xc19bf174UL,
+  0xe49b69c1UL, 0xefbe4786UL, 0x0fc19dc6UL, 0x240ca1ccUL,
+  0x2de92c6fUL, 0x4a7484aaUL, 0x5cb0a9dcUL, 0x76f988daUL,
+  0x983e5152UL, 0xa831c66dUL, 0xb00327c8UL, 0xbf597fc7UL,
+  0xc6e00bf3UL, 0xd5a79147UL, 0x06ca6351UL, 0x14292967UL,
+  0x27b70a85UL, 0x2e1b2138UL, 0x4d2c6dfcUL, 0x53380d13UL,
+  0x650a7354UL, 0x766a0abbUL, 0x81c2c92eUL, 0x92722c85UL,
+  0xa2bfe8a1UL, 0xa81a664bUL, 0xc24b8b70UL, 0xc76c51a3UL,
+  0xd192e819UL, 0xd6990624UL, 0xf40e3585UL, 0x106aa070UL,
+  0x19a4c116UL, 0x1e376c08UL, 0x2748774cUL, 0x34b0bcb5UL,
+  0x391c0cb3UL, 0x4ed8aa4aUL, 0x5b9cca4fUL, 0x682e6ff3UL,
+  0x748f82eeUL, 0x78a5636fUL, 0x84c87814UL, 0x8cc70208UL,
+  0x90befffaUL, 0xa4506cebUL, 0xbef9a3f7UL, 0xc67178f2UL,
+};
+
+/* Round functions.  */
+#define F2(A,B,C) ( ( A & B ) | ( C & ( A | B ) ) )
+#define F1(E,F,G) ( G ^ ( E & ( F ^ G ) ) )
+
+/* Process LEN bytes of BUFFER, accumulating context into CTX.
+   It is assumed that LEN % 64 == 0.
+   Most of this code comes from GnuPG's cipher/sha1.c.  */
+
+void
+sha256_process_block (const void *buffer, size_t len, struct sha256_ctx *ctx)
+{
+  const uint32_t *words = buffer;
+  size_t nwords = len / sizeof (uint32_t);
+  const uint32_t *endp = words + nwords;
+  uint32_t x[16];
+  uint32_t a = ctx->state[0];
+  uint32_t b = ctx->state[1];
+  uint32_t c = ctx->state[2];
+  uint32_t d = ctx->state[3];
+  uint32_t e = ctx->state[4];
+  uint32_t f = ctx->state[5];
+  uint32_t g = ctx->state[6];
+  uint32_t h = ctx->state[7];
+  uint32_t lolen = len;
+
+  /* First increment the byte count.  FIPS PUB 180-2 specifies the possible
+     length of the file up to 2^64 bits.  Here we only compute the
+     number of bytes.  Do a double word increment.  */
+  ctx->total[0] += lolen;
+  ctx->total[1] += (len >> 31 >> 1) + (ctx->total[0] < lolen);
+
+#define rol(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
+#define S0(x) (rol(x,25)^rol(x,14)^(x>>3))
+#define S1(x) (rol(x,15)^rol(x,13)^(x>>10))
+#define SS0(x) (rol(x,30)^rol(x,19)^rol(x,10))
+#define SS1(x) (rol(x,26)^rol(x,21)^rol(x,7))
+
+#define M(I) ( tm =   S1(x[(I-2)&0x0f]) + x[(I-7)&0x0f] \
+                    + S0(x[(I-15)&0x0f]) + x[I&0x0f]    \
+               , x[I&0x0f] = tm )
+
+#define R(A,B,C,D,E,F,G,H,K,M)  do { t0 = SS0(A) + F2(A,B,C); \
+                                     t1 = H + SS1(E)  \
+                                      + F1(E,F,G)     \
+                                      + K             \
+                                      + M;            \
+                                     D += t1;  H = t0 + t1; \
+                               } while(0)
+
+  while (words < endp)
+    {
+      uint32_t tm;
+      uint32_t t0, t1;
+      int t;
+      /* FIXME: see sha1.c for a better implementation.  */
+      for (t = 0; t < 16; t++)
+        {
+          x[t] = SWAP (*words);
+          words++;
+        }
+
+      R( a, b, c, d, e, f, g, h, K( 0), x[ 0] );
+      R( h, a, b, c, d, e, f, g, K( 1), x[ 1] );
+      R( g, h, a, b, c, d, e, f, K( 2), x[ 2] );
+      R( f, g, h, a, b, c, d, e, K( 3), x[ 3] );
+      R( e, f, g, h, a, b, c, d, K( 4), x[ 4] );
+      R( d, e, f, g, h, a, b, c, K( 5), x[ 5] );
+      R( c, d, e, f, g, h, a, b, K( 6), x[ 6] );
+      R( b, c, d, e, f, g, h, a, K( 7), x[ 7] );
+      R( a, b, c, d, e, f, g, h, K( 8), x[ 8] );
+      R( h, a, b, c, d, e, f, g, K( 9), x[ 9] );
+      R( g, h, a, b, c, d, e, f, K(10), x[10] );
+      R( f, g, h, a, b, c, d, e, K(11), x[11] );
+      R( e, f, g, h, a, b, c, d, K(12), x[12] );
+      R( d, e, f, g, h, a, b, c, K(13), x[13] );
+      R( c, d, e, f, g, h, a, b, K(14), x[14] );
+      R( b, c, d, e, f, g, h, a, K(15), x[15] );
+      R( a, b, c, d, e, f, g, h, K(16), M(16) );
+      R( h, a, b, c, d, e, f, g, K(17), M(17) );
+      R( g, h, a, b, c, d, e, f, K(18), M(18) );
+      R( f, g, h, a, b, c, d, e, K(19), M(19) );
+      R( e, f, g, h, a, b, c, d, K(20), M(20) );
+      R( d, e, f, g, h, a, b, c, K(21), M(21) );
+      R( c, d, e, f, g, h, a, b, K(22), M(22) );
+      R( b, c, d, e, f, g, h, a, K(23), M(23) );
+      R( a, b, c, d, e, f, g, h, K(24), M(24) );
+      R( h, a, b, c, d, e, f, g, K(25), M(25) );
+      R( g, h, a, b, c, d, e, f, K(26), M(26) );
+      R( f, g, h, a, b, c, d, e, K(27), M(27) );
+      R( e, f, g, h, a, b, c, d, K(28), M(28) );
+      R( d, e, f, g, h, a, b, c, K(29), M(29) );
+      R( c, d, e, f, g, h, a, b, K(30), M(30) );
+      R( b, c, d, e, f, g, h, a, K(31), M(31) );
+      R( a, b, c, d, e, f, g, h, K(32), M(32) );
+      R( h, a, b, c, d, e, f, g, K(33), M(33) );
+      R( g, h, a, b, c, d, e, f, K(34), M(34) );
+      R( f, g, h, a, b, c, d, e, K(35), M(35) );
+      R( e, f, g, h, a, b, c, d, K(36), M(36) );
+      R( d, e, f, g, h, a, b, c, K(37), M(37) );
+      R( c, d, e, f, g, h, a, b, K(38), M(38) );
+      R( b, c, d, e, f, g, h, a, K(39), M(39) );
+      R( a, b, c, d, e, f, g, h, K(40), M(40) );
+      R( h, a, b, c, d, e, f, g, K(41), M(41) );
+      R( g, h, a, b, c, d, e, f, K(42), M(42) );
+      R( f, g, h, a, b, c, d, e, K(43), M(43) );
+      R( e, f, g, h, a, b, c, d, K(44), M(44) );
+      R( d, e, f, g, h, a, b, c, K(45), M(45) );
+      R( c, d, e, f, g, h, a, b, K(46), M(46) );
+      R( b, c, d, e, f, g, h, a, K(47), M(47) );
+      R( a, b, c, d, e, f, g, h, K(48), M(48) );
+      R( h, a, b, c, d, e, f, g, K(49), M(49) );
+      R( g, h, a, b, c, d, e, f, K(50), M(50) );
+      R( f, g, h, a, b, c, d, e, K(51), M(51) );
+      R( e, f, g, h, a, b, c, d, K(52), M(52) );
+      R( d, e, f, g, h, a, b, c, K(53), M(53) );
+      R( c, d, e, f, g, h, a, b, K(54), M(54) );
+      R( b, c, d, e, f, g, h, a, K(55), M(55) );
+      R( a, b, c, d, e, f, g, h, K(56), M(56) );
+      R( h, a, b, c, d, e, f, g, K(57), M(57) );
+      R( g, h, a, b, c, d, e, f, K(58), M(58) );
+      R( f, g, h, a, b, c, d, e, K(59), M(59) );
+      R( e, f, g, h, a, b, c, d, K(60), M(60) );
+      R( d, e, f, g, h, a, b, c, K(61), M(61) );
+      R( c, d, e, f, g, h, a, b, K(62), M(62) );
+      R( b, c, d, e, f, g, h, a, K(63), M(63) );
+
+      a = ctx->state[0] += a;
+      b = ctx->state[1] += b;
+      c = ctx->state[2] += c;
+      d = ctx->state[3] += d;
+      e = ctx->state[4] += e;
+      f = ctx->state[5] += f;
+      g = ctx->state[6] += g;
+      h = ctx->state[7] += h;
+    }
+}
+
+#endif
+
+/*
+ * Hey Emacs!
+ * Local Variables:
+ * coding: utf-8
+ * End:
+ */
diff --git a/gl/sha1.h b/gl/sha256.h
similarity index 56%
rename from gl/sha1.h
rename to gl/sha256.h
index 5a58b56..2879477 100644
--- a/gl/sha1.h
+++ b/gl/sha256.h
@@ -1,7 +1,6 @@
-/* Declarations of functions and data types used for SHA1 sum
+/* Declarations of functions and data types used for SHA256 and SHA224 sum
    library functions.
-   Copyright (C) 2000-2001, 2003, 2005-2006, 2008-2023 Free Software
-   Foundation, Inc.
+   Copyright (C) 2005-2006, 2008-2023 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
@@ -16,13 +15,13 @@
    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
-#ifndef SHA1_H
-# define SHA1_H 1
+#ifndef SHA256_H
+# define SHA256_H 1
 
 # include <stdio.h>
 # include <stdint.h>
 
-# if HAVE_OPENSSL_SHA1
+# if HAVE_OPENSSL_SHA256
 #  ifndef OPENSSL_API_COMPAT
 #   define OPENSSL_API_COMPAT 0x10101000L /* FIXME: Use OpenSSL 1.1+ API.  */
 #  endif
@@ -33,72 +32,79 @@
 extern "C" {
 # endif
 
-# define SHA1_DIGEST_SIZE 20
+enum { SHA224_DIGEST_SIZE = 224 / 8 };
+enum { SHA256_DIGEST_SIZE = 256 / 8 };
 
-# if HAVE_OPENSSL_SHA1
-#  define GL_OPENSSL_NAME 1
+# if HAVE_OPENSSL_SHA256
+#  define GL_OPENSSL_NAME 224
+#  include "gl_openssl.h"
+#  define GL_OPENSSL_NAME 256
 #  include "gl_openssl.h"
 # else
 /* Structure to save state of computation between the single steps.  */
-struct sha1_ctx
+struct sha256_ctx
 {
-  uint32_t A;
-  uint32_t B;
-  uint32_t C;
-  uint32_t D;
-  uint32_t E;
+  uint32_t state[8];
 
   uint32_t total[2];
-  uint32_t buflen;     /* ≥ 0, ≤ 128 */
+  size_t buflen;       /* ≥ 0, ≤ 128 */
   uint32_t buffer[32]; /* 128 bytes; the first buflen bytes are in use */
 };
 
 /* Initialize structure containing state of computation. */
-extern void sha1_init_ctx (struct sha1_ctx *ctx);
+extern void sha256_init_ctx (struct sha256_ctx *ctx);
+extern void sha224_init_ctx (struct sha256_ctx *ctx);
 
 /* Starting with the result of former calls of this function (or the
    initialization function update the context for the next LEN bytes
    starting at BUFFER.
    It is necessary that LEN is a multiple of 64!!! */
-extern void sha1_process_block (const void *buffer, size_t len,
-                                struct sha1_ctx *ctx);
+extern void sha256_process_block (const void *buffer, size_t len,
+                                  struct sha256_ctx *ctx);
 
 /* Starting with the result of former calls of this function (or the
    initialization function update the context for the next LEN bytes
    starting at BUFFER.
    It is NOT required that LEN is a multiple of 64.  */
-extern void sha1_process_bytes (const void *buffer, size_t len,
-                                struct sha1_ctx *ctx);
+extern void sha256_process_bytes (const void *buffer, size_t len,
+                                  struct sha256_ctx *ctx);
 
 /* Process the remaining bytes in the buffer and put result from CTX
-   in first 20 bytes following RESBUF.  The result is always in little
+   in first 32 (28) bytes following RESBUF.  The result is always in little
    endian byte order, so that a byte-wise output yields to the wanted
    ASCII representation of the message digest.  */
-extern void *sha1_finish_ctx (struct sha1_ctx *ctx, void *restrict resbuf);
+extern void *sha256_finish_ctx (struct sha256_ctx *ctx, void *restrict resbuf);
+extern void *sha224_finish_ctx (struct sha256_ctx *ctx, void *restrict resbuf);
 
 
-/* Put result from CTX in first 20 bytes following RESBUF.  The result is
+/* Put result from CTX in first 32 (28) bytes following RESBUF.  The result is
    always in little endian byte order, so that a byte-wise output yields
    to the wanted ASCII representation of the message digest.  */
-extern void *sha1_read_ctx (const struct sha1_ctx *ctx, void *restrict resbuf);
+extern void *sha256_read_ctx (const struct sha256_ctx *ctx,
+                              void *restrict resbuf);
+extern void *sha224_read_ctx (const struct sha256_ctx *ctx,
+                              void *restrict resbuf);
 
 
-/* Compute SHA1 message digest for LEN bytes beginning at BUFFER.  The
-   result is always in little endian byte order, so that a byte-wise
+/* Compute SHA256 (SHA224) message digest for LEN bytes beginning at BUFFER.
+   The result is always in little endian byte order, so that a byte-wise
    output yields to the wanted ASCII representation of the message
    digest.  */
-extern void *sha1_buffer (const char *buffer, size_t len,
-                          void *restrict resblock);
+extern void *sha256_buffer (const char *buffer, size_t len,
+                            void *restrict resblock);
+extern void *sha224_buffer (const char *buffer, size_t len,
+                            void *restrict resblock);
 
 # endif
 
-/* Compute SHA1 message digest for bytes read from STREAM.
+/* Compute SHA256 (SHA224) message digest for bytes read from STREAM.
    STREAM is an open file stream.  Regular files are handled more efficiently.
    The contents of STREAM from its current position to its end will be read.
    The case that the last operation on STREAM was an 'ungetc' is not supported.
-   The resulting message digest number will be written into the 20 bytes
+   The resulting message digest number will be written into the 32 (28) bytes
    beginning at RESBLOCK.  */
-extern int sha1_stream (FILE *stream, void *resblock);
+extern int sha256_stream (FILE *stream, void *resblock);
+extern int sha224_stream (FILE *stream, void *resblock);
 
 
 # ifdef __cplusplus
diff --git a/gl/stdckdint.h b/gl/stdckdint.h
new file mode 100644
index 0000000..edcda29
--- /dev/null
+++ b/gl/stdckdint.h
@@ -0,0 +1,36 @@
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* stdckdint.h -- checked integer arithmetic
+
+   Copyright 2022-2023 Free Software Foundation, Inc.
+
+   This program 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.
+
+   This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#ifndef _GL_STDCKDINT_H
+#define _GL_STDCKDINT_H
+
+#include "intprops-internal.h"
+
+/* Store into *R the low-order bits of A + B, A - B, A * B, respectively.
+   Return 1 if the result overflows, 0 otherwise.
+   A, B, and *R can have any integer type other than char, bool, a
+   bit-precise integer type, or an enumeration type.
+
+   These are like the standard macros introduced in C23, except that
+   arguments should not have side effects.  */
+
+#define ckd_add(r, a, b) ((bool) _GL_INT_ADD_WRAPV (a, b, r))
+#define ckd_sub(r, a, b) ((bool) _GL_INT_SUBTRACT_WRAPV (a, b, r))
+#define ckd_mul(r, a, b) ((bool) _GL_INT_MULTIPLY_WRAPV (a, b, r))
+
+#endif /* _GL_STDCKDINT_H */
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