liblangtag: fix for libtool>=2.4.6

Need to have gobject-introspection in hostmakedepends for
autoreconf to work. Now it is there anyway, enable it for
non-cross builds and keep usr/share/gir-1.0 in the -devel package.

srcpkgs/liblangtag/template

@@ -1,7 +1,7 @@
 # Template file for 'liblangtag'
 pkgname=liblangtag
 version=0.5.7
-revision=1
+revision=2
 build_style=gnu-configure
 short_desc="Interface library to access tags for identifying languages"
 maintainer="Enno Boland <gottox@voidlinux.eu>"
@@ -9,11 +9,17 @@ license="LGPL-2, MPL"
 homepage="http://tagoh.bitbucket.org/liblangtag"
 distfiles="https://bitbucket.org/tagoh/${pkgname}/downloads/${pkgname}-${version}.tar.bz2"
 makedepends="libxml2-devel"
-hostmakedepends="libtool pkg-config"
+hostmakedepends="automake libtool pkg-config gobject-introspection"
+configure_args="$(vopt_enable gir instrospection)"
 checksum=f2b20d7b66c37e3be73feb67831195e5db16d0bb7df0d05c2e4bb96c4deb11cf
 
+build_options="gir"
+if [ -z "$CROSS_BUILD" ]; then
+	build_options_default="gir"
+fi
+
 pre_configure() {
-	libtoolize -f
+	autoreconf -if
 }
 
 liblangtag-devel_package() {
@@ -23,5 +29,8 @@ liblangtag-devel_package() {
 		vmove usr/include
 		vmove usr/lib/pkgconfig
 		vmove "usr/lib/*.so"
+		if [ -z "$CROSS_BUILD" ]; then
+			vmove usr/share/gir-1.0
+		fi
 	}
 }