libxkbcommon: regen auto{conf,make} to unbreak cross compilation.

Close #1483

srcpkgs/libxkbcommon/template

@@ -1,10 +1,10 @@
 # Template file for 'libxkbcommon'.
 pkgname=libxkbcommon
 version=0.5.0
-revision=2
+revision=3
 build_style=gnu-configure
 configure_args="--disable-static"
-hostmakedepends="pkg-config flex"
+hostmakedepends="automake pkg-config libtool flex xorg-util-macros"
 makedepends="xkeyboard-config libxcb-devel"
 depends="xkeyboard-config"
 short_desc="Library to handle keyboard descriptions"
@@ -14,6 +14,10 @@ license="MIT/X11"
 distfiles="http://xkbcommon.org/download/${pkgname}-${version}.tar.xz"
 checksum=90bd7824742b9a6f52a6cf80e2cadd6f5349cf600a358d08260772615b89d19c
 
+pre_configure() {
+	autoreconf -fi
+}
+
 libxkbcommon-x11_package() {
 	short_desc+=" - X11 support"
 	pkg_install() {