Arch Linux libseccomp patch for python

gistfile1.txt

--- PKGBUILD_old	2020-06-24 10:43:28.790287474 -0700
+++ PKGBUILD	2020-06-24 10:54:25.343958327 -0700
@@ -3,7 +3,8 @@
 # Contributor: Daniel Micay <danielmicay@gmail.com>
 # Contributor: Patryk Kowalczyk < patryk at kowalczyk dot ws>
 
-pkgname=libseccomp
+pkgbase=libseccomp
+pkgname=('libseccomp' 'python-libseccomp')
 pkgver=2.4.2
 pkgrel=1
 pkgdesc='Enhanced seccomp library'
@@ -12,10 +13,9 @@
 url="https://github.com/seccomp/libseccomp"
 depends=('glibc')
 checkdepends=('valgrind')
-makedepends=('git')
-provides=('libseccomp.so')
+makedepends=('git' 'cython' 'python-setuptools')
 #source=(https://github.com/seccomp/${pkgname}/releases/download/v${pkgver}/${pkgname}-${pkgver}.tar.gz{,.asc})
-source=("git+https://github.com/seccomp/${pkgname}?signed#tag=v${pkgver}")
+source=("${pkgbase}-${pkgver}::git+https://github.com/seccomp/${pkgname}?signed#tag=v${pkgver}")
 sha256sums=('SKIP')
 # XXX: do NOT trust this key as its not yet in the strong set, see linked issue
 # XXX: https://github.com/seccomp/libseccomp/issues/187
@@ -24,12 +24,12 @@
 validpgpkeys=('7100AADFAE6E6E940D2E0AD655E45A5AE8CA7C8A') # Paul Moore <paul@paul-moore.com>
 
 pkgver() {
-  cd ${pkgname}
+  cd ${pkgbase}-${pkgver}
   git describe --tags --match 'v*' | sed 's/^v//;s/\([^-]*-g\)/r\1/;s/-/./g'
 }
 
 prepare() {
-  cd ${pkgname}
+  cd ${pkgbase}-${pkgver}
   # assert annotated tag doesn't change
   test "$(git rev-parse HEAD)" = "1b6cfd1fc0b7499a28c24299a93a80bd18619563"
   # backport: api: define __SNR_ppoll again
@@ -37,20 +37,29 @@
 }
 
 build() {
-  cd ${pkgname}
+  cd ${pkgbase}-${pkgver}
   autoreconf -fiv
   ./configure --prefix=/usr
   make
 }
 
 check() {
-  cd ${pkgname}
+  cd ${pkgbase}-${pkgver}
   make check
 }
 
-package() {
-  cd ${pkgname}
-  make DESTDIR="${pkgdir}" install
+package_python-libseccomp() {
+  depends=('libseccomp' 'cython')
+  cd ${pkgbase}-${pkgver}/src/python
+  # Environmental variable VERSION_RELEASE is used by setup.py to version python package
+  env VERSION_RELEASE=${pkgver} python ./setup.py build
+  env VERSION_RELEASE=${pkgver} python ./setup.py install --prefix=/usr --root=${pkgdir}
+}
+
+package_libseccomp() {
+  provides=('libseccomp.so')
+  cd ${pkgbase}-${pkgver}
+  make DESTDIR="${pkgdir}"/ install
   install -Dm 644 CHANGELOG README.md SECURITY.md -t "${pkgdir}/usr/share/doc/${pkgname}"
 }