libseccomp: update to 2.2.1.

srcpkgs/libseccomp/template

@@ -1,16 +1,19 @@
 # Template file for 'libseccomp'
 pkgname=libseccomp
-version=2.1.1
-revision=2
-build_style=configure
-configure_args="--prefix=/usr"
-hostmakedepends="which"
+version=2.2.1
+revision=1
+build_style=gnu-configure
+hostmakedepends="which automake libtool"
 short_desc="High level interface to the Linux Kernel's seccomp filter"
 maintainer="Juan RP <xtraeme@voidlinux.eu>"
-homepage="http://sourceforge.net/projects/libseccomp/"
+homepage="https://github.com/seccomp/libseccomp/"
 license="LGPL-2.1"
-distfiles="${SOURCEFORGE_SITE}/${pkgname}/${pkgname}-${version}.tar.gz"
-checksum=8812c11e407c383f5ad6afb84a88e5a0224477bcfe8ff03f0c548e5abaac841c
+distfiles="https://github.com/seccomp/${pkgname}/archive/v${version}.tar.gz"
+checksum=040251870324b37bdeb2448cd8a54d677fd813104028b37dc4e591e6cf3ecf27
+
+pre_configure() {
+	./autogen.sh
+}
 
 libseccomp-devel_package() {
 	depends="${sourcepkg}>=${version}_${revision}"