Add autoconf-wrapper

Provides all the autoconf scripts and redirects them to the
required version (by parsing existing configure files)

autoconf-wrapper/PKGBUILD

@@ -0,0 +1,29 @@
+# Maintainer: Christoph Reiter <reiter.christoph@gmail.com>
+
+pkgname=autoconf-wrapper
+pkgver=15
+pkgrel=1
+pkgdesc="Wrapper scripts for autoconf commands"
+arch=('any')
+license=('spdx:GPL-2.0-only')
+url="https://packages.gentoo.org/packages/sys-devel/autoconf-wrapper"
+depends=(
+  'bash'
+  'sed'
+  'autoconf2.71'
+  'autoconf2.69'
+  'autoconf2.13')
+source=("ac-wrapper-${pkgver}.sh::https://gitweb.gentoo.org/repo/gentoo.git/plain/sys-devel/autoconf-wrapper/files/ac-wrapper-${pkgver}.sh?id=bff583ede76fd4f7ab5b21399ff72bfce15634aa")
+sha256sums=('707a9b003d43bcd6701df4ae65abf8e449a8b9337ec91a86ef17e8e76e48942b')
+provides=("autoconf")
+conflicts=("autoconf")
+replaces=("autoconf")
+
+package() {
+  mkdir -p ${pkgdir}/usr/bin
+
+  for prog in autoconf autoheader autom4te autoreconf autoscan autoupdate ifnames
+  do
+    cp "${srcdir}/ac-wrapper-${pkgver}.sh" "${pkgdir}/usr/bin/${prog}"
+  done
+}