[Buildroot] [PATCH] package/m4: bump to version 1.4.19

Arnout Vandecappelle arnout at mind.be
Thu Sep 16 18:54:34 UTC 2021



On 06/09/2021 17:26, Francois Perrad wrote:
> COPYING with https links
> 
> Signed-off-by: Francois Perrad <francois.perrad at gadz.org>

 Applied to master, thanks. I rewrote the commit message a bit but this was good!

 Regards,
 Arnout

> ---
>  ...adjust-to-glibc-2.28-libio.h-removal.patch | 166 ------------------
>  ...e-more-paranoid-about-libio.h-change.patch | 151 ----------------
>  .../m4/0003-c-stack-stop-using-SIGSTKSZ.patch | 106 -----------
>  package/m4/m4.hash                            |   4 +-
>  package/m4/m4.mk                              |   2 +-
>  5 files changed, 3 insertions(+), 426 deletions(-)
>  delete mode 100644 package/m4/0001-fflush-adjust-to-glibc-2.28-libio.h-removal.patch
>  delete mode 100644 package/m4/0002-fflush-be-more-paranoid-about-libio.h-change.patch
>  delete mode 100644 package/m4/0003-c-stack-stop-using-SIGSTKSZ.patch
> 
> diff --git a/package/m4/0001-fflush-adjust-to-glibc-2.28-libio.h-removal.patch b/package/m4/0001-fflush-adjust-to-glibc-2.28-libio.h-removal.patch
> deleted file mode 100644
> index 5c5c11b99..000000000
> --- a/package/m4/0001-fflush-adjust-to-glibc-2.28-libio.h-removal.patch
> +++ /dev/null
> @@ -1,166 +0,0 @@
> -From 4af4a4a71827c0bc5e0ec67af23edef4f15cee8e Mon Sep 17 00:00:00 2001
> -From: Paul Eggert <eggert at cs.ucla.edu>
> -Date: Mon, 5 Mar 2018 10:56:29 -0800
> -Subject: [PATCH] fflush: adjust to glibc 2.28 libio.h removal
> -MIME-Version: 1.0
> -Content-Type: text/plain; charset=UTF-8
> -Content-Transfer-Encoding: 8bit
> -
> -Problem reported by Daniel P. Berrangé in:
> -https://lists.gnu.org/r/bug-gnulib/2018-03/msg00000.html
> -* lib/fbufmode.c (fbufmode):
> -* lib/fflush.c (clear_ungetc_buffer_preserving_position)
> -(disable_seek_optimization, rpl_fflush):
> -* lib/fpending.c (__fpending):
> -* lib/fpurge.c (fpurge):
> -* lib/freadable.c (freadable):
> -* lib/freadahead.c (freadahead):
> -* lib/freading.c (freading):
> -* lib/freadptr.c (freadptr):
> -* lib/freadseek.c (freadptrinc):
> -* lib/fseeko.c (fseeko):
> -* lib/fseterr.c (fseterr):
> -* lib/fwritable.c (fwritable):
> -* lib/fwriting.c (fwriting):
> -Check _IO_EOF_SEEN instead of _IO_ftrylockfile.
> -* lib/stdio-impl.h (_IO_IN_BACKUP) [_IO_EOF_SEEN]:
> -Define if not already defined.
> -
> -[yann.morin.1998 at free.fr: partially backport from upstream gnulib]
> -Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
> -
> ----
> - lib/fflush.c     |  6 +++---
> - lib/fpending.c   |  2 +-
> - lib/fpurge.c     |  2 +-
> - lib/freadahead.c |  2 +-
> - lib/freading.c   |  2 +-
> - lib/fseeko.c     |  4 ++--
> - lib/stdio-impl.h |  6 ++++++
> - 7 files changed, 15 insertions(+), 9 deletions(-)
> -
> -diff --git a/lib/fflush.c b/build-aux/gnulib/lib/fflush.c
> -index 983ade0ff..a6edfa105 100644
> ---- a/lib/fflush.c
> -+++ b/lib/fflush.c
> -@@ -33,7 +33,7 @@
> - #undef fflush
> - 
> - 
> --#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> - 
> - /* Clear the stream's ungetc buffer, preserving the value of ftello (fp).  */
> - static void
> -@@ -72,7 +72,7 @@ clear_ungetc_buffer (FILE *fp)
> - 
> - #endif
> - 
> --#if ! (defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */)
> -+#if ! (defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */)
> - 
> - # if (defined __sferror || defined __DragonFly__ || defined __ANDROID__) && defined __SNPT
> - /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Minix 3, Android */
> -@@ -148,7 +148,7 @@ rpl_fflush (FILE *stream)
> -   if (stream == NULL || ! freading (stream))
> -     return fflush (stream);
> - 
> --#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> - 
> -   clear_ungetc_buffer_preserving_position (stream);
> - 
> -diff --git a/lib/fpending.c b/build-aux/gnulib/lib/fpending.c
> -index c84e3a5b4..789f50e4e 100644
> ---- a/lib/fpending.c
> -+++ b/lib/fpending.c
> -@@ -32,7 +32,7 @@ __fpending (FILE *fp)
> -   /* Most systems provide FILE as a struct and the necessary bitmask in
> -      <stdio.h>, because they need it for implementing getc() and putc() as
> -      fast macros.  */
> --#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -   return fp->_IO_write_ptr - fp->_IO_write_base;
> - #elif defined __sferror || defined __DragonFly__ || defined __ANDROID__
> -   /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Minix 3, Android */
> -diff --git a/lib/fpurge.c b/build-aux/gnulib/lib/fpurge.c
> -index b1d417c7a..3aedcc373 100644
> ---- a/lib/fpurge.c
> -+++ b/lib/fpurge.c
> -@@ -62,7 +62,7 @@ fpurge (FILE *fp)
> -   /* Most systems provide FILE as a struct and the necessary bitmask in
> -      <stdio.h>, because they need it for implementing getc() and putc() as
> -      fast macros.  */
> --# if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+# if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -   fp->_IO_read_end = fp->_IO_read_ptr;
> -   fp->_IO_write_ptr = fp->_IO_write_base;
> -   /* Avoid memory leak when there is an active ungetc buffer.  */
> -diff --git a/lib/freadahead.c b/build-aux/gnulib/lib/freadahead.c
> -index c2ecb5b28..23ec76ee5 100644
> ---- a/lib/freadahead.c
> -+++ b/lib/freadahead.c
> -@@ -30,7 +30,7 @@ extern size_t __sreadahead (FILE *);
> - size_t
> - freadahead (FILE *fp)
> - {
> --#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -   if (fp->_IO_write_ptr > fp->_IO_write_base)
> -     return 0;
> -   return (fp->_IO_read_end - fp->_IO_read_ptr)
> -diff --git a/lib/freading.c b/build-aux/gnulib/lib/freading.c
> -index 73c28acdd..c24d0c88a 100644
> ---- a/lib/freading.c
> -+++ b/lib/freading.c
> -@@ -31,7 +31,7 @@ freading (FILE *fp)
> -   /* Most systems provide FILE as a struct and the necessary bitmask in
> -      <stdio.h>, because they need it for implementing getc() and putc() as
> -      fast macros.  */
> --# if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+# if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -   return ((fp->_flags & _IO_NO_WRITES) != 0
> -           || ((fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) == 0
> -               && fp->_IO_read_base != NULL));
> -diff --git a/lib/fseeko.c b/build-aux/gnulib/lib/fseeko.c
> -index 0101ab55f..193f4e8ce 100644
> ---- a/lib/fseeko.c
> -+++ b/lib/fseeko.c
> -@@ -47,7 +47,7 @@ fseeko (FILE *fp, off_t offset, int whence)
> - #endif
> - 
> -   /* These tests are based on fpurge.c.  */
> --#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -   if (fp->_IO_read_end == fp->_IO_read_ptr
> -       && fp->_IO_write_ptr == fp->_IO_write_base
> -       && fp->_IO_save_base == NULL)
> -@@ -123,7 +123,7 @@ fseeko (FILE *fp, off_t offset, int whence)
> -           return -1;
> -         }
> - 
> --#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -       fp->_flags &= ~_IO_EOF_SEEN;
> -       fp->_offset = pos;
> - #elif defined __sferror || defined __DragonFly__ || defined __ANDROID__
> -diff --git a/lib/stdio-impl.h b/build-aux/gnulib/lib/stdio-impl.h
> -index 78d896e9f..05c5752a2 100644
> ---- a/lib/stdio-impl.h
> -+++ b/lib/stdio-impl.h
> -@@ -18,6 +18,12 @@
> -    the same implementation of stdio extension API, except that some fields
> -    have different naming conventions, or their access requires some casts.  */
> - 
> -+/* Glibc 2.28 made _IO_IN_BACKUP private.  For now, work around this
> -+   problem by defining it ourselves.  FIXME: Do not rely on glibc
> -+   internals.  */
> -+#if !defined _IO_IN_BACKUP && defined _IO_EOF_SEEN
> -+# define _IO_IN_BACKUP 0x100
> -+#endif
> - 
> - /* BSD stdio derived implementations.  */
> - 
> --- 
> -2.14.1
> -
> diff --git a/package/m4/0002-fflush-be-more-paranoid-about-libio.h-change.patch b/package/m4/0002-fflush-be-more-paranoid-about-libio.h-change.patch
> deleted file mode 100644
> index a820ca8ca..000000000
> --- a/package/m4/0002-fflush-be-more-paranoid-about-libio.h-change.patch
> +++ /dev/null
> @@ -1,151 +0,0 @@
> -From 74d9d6a293d7462dea8f83e7fc5ac792e956a0ad Mon Sep 17 00:00:00 2001
> -From: Paul Eggert <eggert at cs.ucla.edu>
> -Date: Thu, 8 Mar 2018 16:42:45 -0800
> -Subject: [PATCH 2/2] fflush: be more paranoid about libio.h change
> -
> -Suggested by Eli Zaretskii in:
> -https://lists.gnu.org/r/emacs-devel/2018-03/msg00270.html
> -* lib/fbufmode.c (fbufmode):
> -* lib/fflush.c (clear_ungetc_buffer_preserving_position)
> -(disable_seek_optimization, rpl_fflush):
> -* lib/fpending.c (__fpending):
> -* lib/fpurge.c (fpurge):
> -* lib/freadable.c (freadable):
> -* lib/freadahead.c (freadahead):
> -* lib/freading.c (freading):
> -* lib/freadptr.c (freadptr):
> -* lib/freadseek.c (freadptrinc):
> -* lib/fseeko.c (fseeko):
> -* lib/fseterr.c (fseterr):
> -* lib/fwritable.c (fwritable):
> -* lib/fwriting.c (fwriting):
> -Look at _IO_ftrylockfile as well as at _IO_EOF_SEEN.
> ----
> - lib/fflush.c     |  9 ++++++---
> - lib/fpending.c   |  3 ++-
> - lib/fpurge.c     |  3 ++-
> - lib/freadahead.c |  3 ++-
> - lib/freading.c   |  3 ++-
> - lib/fseeko.c     |  6 ++++--
> - 6 files changed, 18 insertions(+), 9 deletions(-)
> -
> -[yann.morin.1998 at free.fr: partially backport from upstream gnulib]
> -Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
> -
> -diff --git a/lib/fflush.c b/build-aux/gnulib/lib/fflush.c
> -index a6edfa105..a140b7ad9 100644
> ---- a/lib/fflush.c
> -+++ b/lib/fflush.c
> -@@ -33,7 +33,8 @@
> - #undef fflush
> - 
> - 
> --#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
> -+/* GNU libc, BeOS, Haiku, Linux libc5 */
> - 
> - /* Clear the stream's ungetc buffer, preserving the value of ftello (fp).  */
> - static void
> -@@ -72,7 +73,8 @@ clear_ungetc_buffer (FILE *fp)
> - 
> - #endif
> - 
> --#if ! (defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */)
> -+#if ! (defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1)
> -+/* GNU libc, BeOS, Haiku, Linux libc5 */
> - 
> - # if (defined __sferror || defined __DragonFly__ || defined __ANDROID__) && defined __SNPT
> - /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Minix 3, Android */
> -@@ -148,7 +150,8 @@ rpl_fflush (FILE *stream)
> -   if (stream == NULL || ! freading (stream))
> -     return fflush (stream);
> - 
> --#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
> -+  /* GNU libc, BeOS, Haiku, Linux libc5 */
> - 
> -   clear_ungetc_buffer_preserving_position (stream);
> - 
> -diff --git a/lib/fpending.c b/build-aux/gnulib/lib/fpending.c
> -index 789f50e4e..7bc235ded 100644
> ---- a/lib/fpending.c
> -+++ b/lib/fpending.c
> -@@ -32,7 +32,8 @@ __fpending (FILE *fp)
> -   /* Most systems provide FILE as a struct and the necessary bitmask in
> -      <stdio.h>, because they need it for implementing getc() and putc() as
> -      fast macros.  */
> --#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
> -+  /* GNU libc, BeOS, Haiku, Linux libc5 */
> -   return fp->_IO_write_ptr - fp->_IO_write_base;
> - #elif defined __sferror || defined __DragonFly__ || defined __ANDROID__
> -   /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Minix 3, Android */
> -diff --git a/lib/fpurge.c b/build-aux/gnulib/lib/fpurge.c
> -index 3aedcc373..554790b56 100644
> ---- a/lib/fpurge.c
> -+++ b/lib/fpurge.c
> -@@ -62,7 +62,8 @@ fpurge (FILE *fp)
> -   /* Most systems provide FILE as a struct and the necessary bitmask in
> -      <stdio.h>, because they need it for implementing getc() and putc() as
> -      fast macros.  */
> --# if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+# if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
> -+  /* GNU libc, BeOS, Haiku, Linux libc5 */
> -   fp->_IO_read_end = fp->_IO_read_ptr;
> -   fp->_IO_write_ptr = fp->_IO_write_base;
> -   /* Avoid memory leak when there is an active ungetc buffer.  */
> -diff --git a/lib/freadahead.c b/build-aux/gnulib/lib/freadahead.c
> -index 23ec76ee5..ed3dd0ebd 100644
> ---- a/lib/freadahead.c
> -+++ b/lib/freadahead.c
> -@@ -30,7 +30,8 @@ extern size_t __sreadahead (FILE *);
> - size_t
> - freadahead (FILE *fp)
> - {
> --#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
> -+  /* GNU libc, BeOS, Haiku, Linux libc5 */
> -   if (fp->_IO_write_ptr > fp->_IO_write_base)
> -     return 0;
> -   return (fp->_IO_read_end - fp->_IO_read_ptr)
> -diff --git a/lib/freading.c b/build-aux/gnulib/lib/freading.c
> -index c24d0c88a..790f92ca3 100644
> ---- a/lib/freading.c
> -+++ b/lib/freading.c
> -@@ -31,7 +31,8 @@ freading (FILE *fp)
> -   /* Most systems provide FILE as a struct and the necessary bitmask in
> -      <stdio.h>, because they need it for implementing getc() and putc() as
> -      fast macros.  */
> --# if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+# if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
> -+  /* GNU libc, BeOS, Haiku, Linux libc5 */
> -   return ((fp->_flags & _IO_NO_WRITES) != 0
> -           || ((fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) == 0
> -               && fp->_IO_read_base != NULL));
> -diff --git a/lib/fseeko.c b/build-aux/gnulib/lib/fseeko.c
> -index 193f4e8ce..e5c5172e7 100644
> ---- a/lib/fseeko.c
> -+++ b/lib/fseeko.c
> -@@ -47,7 +47,8 @@ fseeko (FILE *fp, off_t offset, int whence)
> - #endif
> - 
> -   /* These tests are based on fpurge.c.  */
> --#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
> -+  /* GNU libc, BeOS, Haiku, Linux libc5 */
> -   if (fp->_IO_read_end == fp->_IO_read_ptr
> -       && fp->_IO_write_ptr == fp->_IO_write_base
> -       && fp->_IO_save_base == NULL)
> -@@ -123,7 +124,8 @@ fseeko (FILE *fp, off_t offset, int whence)
> -           return -1;
> -         }
> - 
> --#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
> -+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
> -+      /* GNU libc, BeOS, Haiku, Linux libc5 */
> -       fp->_flags &= ~_IO_EOF_SEEN;
> -       fp->_offset = pos;
> - #elif defined __sferror || defined __DragonFly__ || defined __ANDROID__
> --- 
> -2.14.1
> -
> diff --git a/package/m4/0003-c-stack-stop-using-SIGSTKSZ.patch b/package/m4/0003-c-stack-stop-using-SIGSTKSZ.patch
> deleted file mode 100644
> index f262fc818..000000000
> --- a/package/m4/0003-c-stack-stop-using-SIGSTKSZ.patch
> +++ /dev/null
> @@ -1,106 +0,0 @@
> -c-stack: stop using SIGSTKSZ
> -
> -It’s been proposed to stop making SIGSTKSZ an integer constant:
> -https://sourceware.org/pipermail/libc-alpha/2020-September/118028.html
> -Also, using SIGSTKSZ in #if did not conform to current POSIX.
> -Also, avoiding SIGSTKSZ makes the code simpler and easier to grok.
> -* lib/c-stack.c (SIGSTKSZ): Remove.
> -(alternate_signal_stack): Now a 64 KiB array, for simplicity.
> -All uses changed.
> -
> -[Retrieved (and backported) from:
> -https://git.savannah.gnu.org/cgit/gnulib.git/patch/?id=f9e2b20a12a230efa30f1d479563ae07d276a94b]
> -Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
> -
> -diff -Nura m4-1.4.18.orig/lib/c-stack.c m4-1.4.18/lib/c-stack.c
> ---- m4-1.4.18.orig/lib/c-stack.c	2021-04-11 19:12:14.086494029 +0200
> -+++ m4-1.4.18/lib/c-stack.c	2021-04-11 19:48:46.316862760 +0200
> -@@ -50,15 +50,16 @@
> - #if ! HAVE_STACK_T && ! defined stack_t
> - typedef struct sigaltstack stack_t;
> - #endif
> --#ifndef SIGSTKSZ
> --# define SIGSTKSZ 16384
> --#elif HAVE_LIBSIGSEGV && SIGSTKSZ < 16384
> --/* libsigsegv 2.6 through 2.8 have a bug where some architectures use
> --   more than the Linux default of an 8k alternate stack when deciding
> --   if a fault was caused by stack overflow.  */
> --# undef SIGSTKSZ
> --# define SIGSTKSZ 16384
> --#endif
> -+
> -+/* Storage for the alternate signal stack.
> -+   64 KiB is not too large for Gnulib-using apps, and is large enough
> -+   for all known platforms.  Smaller sizes may run into trouble.
> -+   For example, libsigsegv 2.6 through 2.8 have a bug where some
> -+   architectures use more than the Linux default of an 8 KiB alternate
> -+   stack when deciding if a fault was caused by stack overflow.  */
> -+static max_align_t alternate_signal_stack[(64 * 1024
> -+                                           + sizeof (max_align_t) - 1)
> -+                                          / sizeof (max_align_t)];
> - 
> - #include <stdlib.h>
> - #include <string.h>
> -@@ -128,19 +129,6 @@
> - #if (HAVE_SIGALTSTACK && HAVE_DECL_SIGALTSTACK \
> -      && HAVE_STACK_OVERFLOW_HANDLING) || HAVE_LIBSIGSEGV
> - 
> --/* Storage for the alternate signal stack.  */
> --static union
> --{
> --  char buffer[SIGSTKSZ];
> --
> --  /* These other members are for proper alignment.  There's no
> --     standard way to guarantee stack alignment, but this seems enough
> --     in practice.  */
> --  long double ld;
> --  long l;
> --  void *p;
> --} alternate_signal_stack;
> --
> - static void
> - null_action (int signo __attribute__ ((unused)))
> - {
> -@@ -205,8 +193,8 @@
> - 
> -   /* Always install the overflow handler.  */
> -   if (stackoverflow_install_handler (overflow_handler,
> --                                     alternate_signal_stack.buffer,
> --                                     sizeof alternate_signal_stack.buffer))
> -+                                     alternate_signal_stack,
> -+                                     sizeof alternate_signal_stack))
> -     {
> -       errno = ENOTSUP;
> -       return -1;
> -@@ -279,14 +267,14 @@
> -   stack_t st;
> -   struct sigaction act;
> -   st.ss_flags = 0;
> -+  st.ss_sp = alternate_signal_stack;
> -+  st.ss_size = sizeof alternate_signal_stack;
> - # if SIGALTSTACK_SS_REVERSED
> -   /* Irix mistakenly treats ss_sp as the upper bound, rather than
> -      lower bound, of the alternate stack.  */
> --  st.ss_sp = alternate_signal_stack.buffer + SIGSTKSZ - sizeof (void *);
> --  st.ss_size = sizeof alternate_signal_stack.buffer - sizeof (void *);
> --# else
> --  st.ss_sp = alternate_signal_stack.buffer;
> --  st.ss_size = sizeof alternate_signal_stack.buffer;
> -+  st.ss_size -= sizeof (void *);
> -+  char *ss_sp = st.ss_sp;
> -+  st.ss_sp = ss_sp + st.ss_size;
> - # endif
> -   r = sigaltstack (&st, NULL);
> -   if (r != 0)
> -diff -Nura m4-1.4.18.orig/lib/c-stack.h m4-1.4.18/lib/c-stack.h
> ---- m4-1.4.18.orig/lib/c-stack.h	2021-04-11 19:12:14.098494042 +0200
> -+++ m4-1.4.18/lib/c-stack.h	2021-04-11 19:17:42.138848378 +0200
> -@@ -34,7 +34,7 @@
> -    A null ACTION acts like an action that does nothing.
> - 
> -    ACTION must be async-signal-safe.  ACTION together with its callees
> --   must not require more than SIGSTKSZ bytes of stack space.  Also,
> -+   must not require more than 64 KiB bytes of stack space.  Also,
> -    ACTION should not call longjmp, because this implementation does
> -    not guarantee that it is safe to return to the original stack.
> - 
> diff --git a/package/m4/m4.hash b/package/m4/m4.hash
> index e665fc149..a81f4fab9 100644
> --- a/package/m4/m4.hash
> +++ b/package/m4/m4.hash
> @@ -1,4 +1,4 @@
>  # Locally calculated after checking pgp signature
> -sha256	f2c1e86ca0a404ff281631bdc8377638992744b175afb806e25871a24a934e07	m4-1.4.18.tar.xz
> +sha256  63aede5c6d33b6d9b13511cd0be2cac046f2e70fd0a07aa9573a04a82783af96  m4-1.4.19.tar.xz
>  # License files, locally calculated
> -sha256	8ceb4b9ee5adedde47b31e975c1d90c73ad27b6b165a1dcd80c7c545eb65b903	COPYING
> +sha256  3972dc9744f6499f0f9b2dbf76696f2ae7ad8af9b23dde66d6af86c9dfb36986  COPYING
> diff --git a/package/m4/m4.mk b/package/m4/m4.mk
> index 849e7f4a5..3a1209297 100644
> --- a/package/m4/m4.mk
> +++ b/package/m4/m4.mk
> @@ -4,7 +4,7 @@
>  #
>  ################################################################################
>  
> -M4_VERSION = 1.4.18
> +M4_VERSION = 1.4.19
>  M4_SOURCE = m4-$(M4_VERSION).tar.xz
>  M4_SITE = $(BR2_GNU_MIRROR)/m4
>  M4_LICENSE = GPL-3.0+
> 


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