xfce4-session: cross compilation support.

srcpkgs/xfce4-session/template

@@ -4,7 +4,7 @@ version=4.12.0
 revision=1
 build_style=gnu-configure
 configure_args="--disable-static --enable-upower --enable-polkit"
-hostmakedepends="pkg-config intltool glib-devel iceauth"
+hostmakedepends="xfce4-dev-tools pkg-config intltool gettext-devel glib-devel iceauth"
 makedepends="libxfce4ui-devel>=4.12 dbus-glib-devel upower0-devel
  libwnck2-devel xfce4-panel-devel>=4.12 libSM-devel polkit-devel"
 depends="iceauth hicolor-icon-theme desktop-file-utils"
@@ -16,6 +16,10 @@ homepage="http://xfce.org"
 distfiles="http://archive.xfce.org/src/xfce/$pkgname/${version%.*}/$pkgname-$version.tar.bz2"
 checksum=68c85453b097d3ada573dcb7e72acd06e0fc34531996122c10d20096405b7b06
 
+pre_configure() {
+	mkdir m4
+	NOCONFIGURE=1 xdt-autogen
+}
 post_install() {
 	# startxfce4 needs bash.
 	replace_interpreter bash ${DESTDIR}/usr/bin/startxfce4