From 66bd7af3e59e509000b8a55a9429e7a8e133fd81 Mon Sep 17 00:00:00 2001
From: Simeon Simeonov
Date: Tue, 14 Mar 2023 23:30:32 +0100
Subject: Sync with upstream 2.14.1 and update the documentation

---
 m4/ax_check_gnu_make.m4 | 84 -------------------------------------------------
 1 file changed, 84 deletions(-)
 delete mode 100644 m4/ax_check_gnu_make.m4

(limited to 'm4/ax_check_gnu_make.m4')

diff --git a/m4/ax_check_gnu_make.m4 b/m4/ax_check_gnu_make.m4
deleted file mode 100644
index 6762e9e..0000000
--- a/m4/ax_check_gnu_make.m4
+++ /dev/null
@@ -1,84 +0,0 @@
-# ===========================================================================
-#     http://www.gnu.org/software/autoconf-archive/ax_check_gnu_make.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_CHECK_GNU_MAKE()
-#
-# DESCRIPTION
-#
-#   This macro searches for a GNU version of make. If a match is found:
-#
-#     * The makefile variable `ifGNUmake' is set to the empty string, otherwise
-#       it is set to "#". This is useful for including a special features in a
-#       Makefile, which cannot be handled by other versions of make.
-#     * The variable `_cv_gnu_make_command` is set to the command to invoke
-#       GNU make if it exists, the empty string otherwise.
-#     * The variable `ax_cv_gnu_make_command` is set to the command to invoke
-#       GNU make by copying `_cv_gnu_make_command`, otherwise it is unset.
-#     * If GNU Make is found, its version is extracted from the output of
-#       `make --version` as the last field of a record of space-separated
-#       columns and saved into the variable `ax_check_gnu_make_version`.
-#
-#   Here is an example of its use:
-#
-#   Makefile.in might contain:
-#
-#     # A failsafe way of putting a dependency rule into a makefile
-#     $(DEPEND):
-#             $(CC) -MM $(srcdir)/*.c > $(DEPEND)
-#
-#     @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
-#     @ifGNUmake@ include $(DEPEND)
-#     @ifGNUmake@ endif
-#
-#   Then configure.in would normally contain:
-#
-#     AX_CHECK_GNU_MAKE()
-#     AC_OUTPUT(Makefile)
-#
-#   Then perhaps to cause gnu make to override any other make, we could do
-#   something like this (note that GNU make always looks for GNUmakefile
-#   first):
-#
-#     if  ! test x$_cv_gnu_make_command = x ; then
-#             mv Makefile GNUmakefile
-#             echo .DEFAULT: > Makefile ;
-#             echo \  $_cv_gnu_make_command \$@ >> Makefile;
-#     fi
-#
-#   Then, if any (well almost any) other make is called, and GNU make also
-#   exists, then the other make wraps the GNU make.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 John Darrington <j.darrington@elvis.murdoch.edu.au>
-#   Copyright (c) 2015 Enrico M. Crisostomo <enrico.m.crisostomo@gmail.com>
-#
-#   Copying and distribution of this file, with or without modification, are
-#   permitted in any medium without royalty provided the copyright notice
-#   and this notice are preserved. This file is offered as-is, without any
-#   warranty.
-
-#serial 8
-
-AC_DEFUN([AX_CHECK_GNU_MAKE],dnl
-  [AC_PROG_AWK
-  AC_CACHE_CHECK([for GNU make],[_cv_gnu_make_command],[dnl
-    _cv_gnu_make_command="" ;
-dnl Search all the common names for GNU make
-    for a in "$MAKE" make gmake gnumake ; do
-      if test -z "$a" ; then continue ; fi ;
-      if "$a" --version 2> /dev/null | grep GNU 2>&1 > /dev/null ; then
-        _cv_gnu_make_command=$a ;
-        AX_CHECK_GNU_MAKE_HEADLINE=$("$a" --version 2> /dev/null | grep "GNU Make")
-        ax_check_gnu_make_version=$(echo ${AX_CHECK_GNU_MAKE_HEADLINE} | ${AWK} -F " " '{ print $(NF); }')
-        break ;
-      fi
-    done ;])
-dnl If there was a GNU version, then set @ifGNUmake@ to the empty string, '#' otherwise
-  AS_VAR_IF([_cv_gnu_make_command], [""], [AS_VAR_SET([ifGNUmake], ["#"])],   [AS_VAR_SET([ifGNUmake], [""])])
-  AS_VAR_IF([_cv_gnu_make_command], [""], [AS_UNSET(ax_cv_gnu_make_command)], [AS_VAR_SET([ax_cv_gnu_make_command], [${_cv_gnu_make_command}])])
-  AC_SUBST([ifGNUmake])
-])
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