From 892f0fdc6ba2260f058f97b1e5e989baf7c56112 Mon Sep 17 00:00:00 2001
From: William S Fulton <wsf@fultondesigns.co.uk>
Date: Thu, 11 Apr 2019 19:42:40 +0100
Subject: Update ax_boost_base.m4 to latest from autoconf archive

Updated to serial #45.
This is in preparation to a possible fix for issue #1435.
The use of AS_CASE requires autoconf-2.60 or later.
---
 configure.ac | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 6380260f1..1873797d6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,10 +3,7 @@ dnl The macros which aren't shipped with the autotools are stored in the
 dnl Tools/config directory in .m4 files.
 
 AC_INIT([swig],[4.0.0],[http://www.swig.org])
-
-dnl NB: When this requirement is increased to 2.60 or later, AC_PROG_SED
-dnl     definition below can be removed
-AC_PREREQ(2.58)
+AC_PREREQ(2.60)
 
 AC_CONFIG_SRCDIR([Source/Swig/swig.h])
 AC_CONFIG_AUX_DIR([Tools/config])
@@ -44,11 +41,6 @@ AC_CHECK_FUNC(popen, AC_DEFINE(HAVE_POPEN, 1, [Define if popen is available]), A
 fi
 
 dnl PCRE
-
-dnl AX_PATH_GENERIC() relies on AC_PROG_SED() but it is defined only in
-dnl autoconf 2.60 so trivially predefine it ourselves for the older versions
-m4_ifdef([AC_PROG_SED],, [AC_DEFUN([AC_PROG_SED], [AC_PATH_PROG([SED], sed)])])
-
 AC_ARG_WITH([pcre],
   [AS_HELP_STRING([--without-pcre],
                   [Disable support for regular expressions using PCRE])],
-- 
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