[PATCH 1/8] alloca: update from Autoconf

[Paul Eggert]

* m4/alloca.m4 (gl_PREREQ_ALLOCA):
Trivial update to match Autoconf 2.70.
---
 ChangeLog    | 6 ++++++
 m4/alloca.m4 | 8 ++++----
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index ec3be42f9..d559fcbaa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2020-12-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+       alloca: update from Autoconf
+       * m4/alloca.m4 (gl_PREREQ_ALLOCA):
+       Trivial update to match Autoconf 2.70.
+
 2020-12-11  Bruno Haible  <bruno@clisp.org>
 
        memchr: Work around memory overrun bug on AIX 7.2.
diff --git a/m4/alloca.m4 b/m4/alloca.m4
index 619959b4d..e3c377c9e 100644
--- a/m4/alloca.m4
+++ b/m4/alloca.m4
@@ -1,4 +1,4 @@
-# alloca.m4 serial 19
+# alloca.m4 serial 20
 dnl Copyright (C) 2002-2004, 2006-2007, 2009-2020 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
@@ -50,10 +50,10 @@ AC_DEFUN([gl_FUNC_ALLOCA],
 # STACK_DIRECTION is already handled by AC_FUNC_ALLOCA.
 AC_DEFUN([gl_PREREQ_ALLOCA], [:])
 
-m4_version_prereq([2.69c], [], [
+m4_version_prereq([2.70], [], [
 
 # This works around a bug in autoconf <= 2.68 and has simplifications
-# from 2.69c.  See:
+# from 2.70.  See:
 # https://lists.gnu.org/r/bug-gnulib/2011-06/msg00277.html
 # 
https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=6cd9f12520b0d6f76d3230d7565feba1ecf29497
 # 
https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=15edf7fd8094fd14a89d9891dd72a9624762597a
@@ -104,5 +104,5 @@ AH_VERBATIM([STACK_DIRECTION],
         STACK_DIRECTION = 0 => direction of growth unknown */
 #undef STACK_DIRECTION])dnl
 AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction)
-])
+])# _AC_LIBOBJ_ALLOCA
 ])
-- 
2.28.0