libidn: fix build via autoreconf and update -devel pkg deps.

srcpkgs/libidn/template

@@ -1,10 +1,10 @@
 # Template build file for 'libidn'.
 pkgname=libidn
 version=1.28
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--disable-csharp --disable-java --disable-static --enable-threads=posix"
-hostmakedepends="perl pkg-config automake"
+hostmakedepends="perl pkg-config automake libtool gettext-devel"
 short_desc="Internationalized string handling library"
 maintainer="Juan RP <xtraeme@gmail.com>"
 homepage="http://www.gnu.org/software/libidn/"
@@ -12,8 +12,12 @@ license="GPL-3, LGPL-2.1"
 distfiles="http://ftp.gnu.org/gnu/libidn/libidn-${version}.tar.gz"
 checksum=dd357a968449abc97c7e5fa088a4a384de57cb36564f9d4e0d898ecc6373abfb
 
+pre_configure() {
+	autoreconf -fi
+}
+
 libidn-devel_package() {
-	depends="libidn>=${version}"
+	depends="libidn>=${version}_${revision}"
 	short_desc+=" - development files"
 	pkg_install() {
 		vmove usr/include