autoconf: update to 2.71.

srcpkgs/autoconf/patches/fix-perl-5.22-autoscan.patch

@@ -1,27 +0,0 @@
-From e5654a5591884b92633c7785f325626711e7f7aa Mon Sep 17 00:00:00 2001
-From: Paul Eggert <eggert@cs.ucla.edu>
-Date: Tue, 29 Jan 2013 13:46:48 -0800
-Subject: [PATCH] autoscan: port to perl 5.17
-
-* bin/autoscan.in (scan_sh_file): Escape '{'.  This avoids a
-feature that is deprecated in Perl 5.17.  Reported by Ray Lauff in
-<http://lists.gnu.org/archive/html/bug-autoconf/2013-01/msg00059.html>.
----
- bin/autoscan.in | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/bin/autoscan.in
-+++ b/bin/autoscan.in
-@@ -358,7 +358,7 @@ sub scan_sh_file ($)
-     {
-       # Strip out comments and variable references.
-       s/#.*//;
--      s/\${[^\}]*}//g;
-+      s/\$\{[^\}]*}//g;
-       s/@[^@]*@//g;
- 
-       # Tokens in the code.
--- 
-2.1.0
-
-

srcpkgs/autoconf/template

@@ -1,7 +1,7 @@
 # Template file for 'autoconf'
 pkgname=autoconf
-version=2.69
+version=2.71
-revision=9
+revision=1
 build_style=gnu-configure
 hostmakedepends="perl m4 help2man"
 depends="virtual?awk m4 perl"
@@ -10,7 +10,7 @@ maintainer="Enno Boland <gottox@voidlinux.org>"
 license="GPL-2.0-or-later, GPL-3.0-or-later"
 homepage="http://www.gnu.org/software/autoconf"
 distfiles="${GNU_SITE}/$pkgname/$pkgname-$version.tar.xz"
-checksum=64ebcec9f8ac5b2487125a86a7760d2591ac9e1d3dbd59489633f9de62a57684
+checksum=f14c83cfebcc9427f2c3cea7258bd90df972d92eb26752da4ddad81c87a0faa4
 
 pre_check() {
 	# Disable failing test by adding