--- PKGBUILD.bak	2023-09-05 22:57:41.144552749 +0200
+++ PKGBUILD	2023-09-05 22:58:40.854989028 +0200
@@ -2,17 +2,24 @@
 # Maintainer: Daniel Maslowski <info@orangecms.org>
 
 pkgbase=pycosat
-pkgname=(python-pycosat)
+pkgname=python-pycosat
 pkgver=0.6.4
-pkgrel=2
+pkgrel=3
 arch=(x86_64)
 url="https://github.com/ContinuumIO/pycosat"
 pkgdesc="Python bindings to picosat (a SAT solver)"
 license=(MIT)
 depends=(python)
 makedepends=(python-build python-installer python-setuptools python-wheel)
-source=(https://github.com/ContinuumIO/$pkgbase/archive/$pkgver/$pkgbase-$pkgver.tar.gz)
-sha256sums=('79ffa99156810e58876dd6374af0b7bff88f9a4580ca8b8468c414c5c2454bb8')
+source=(https://github.com/conda/pycosat/archive/refs/tags/v0.6.4.tar.gz
+        pycosat.c.diff)
+sha256sums=('79ffa99156810e58876dd6374af0b7bff88f9a4580ca8b8468c414c5c2454bb8'
+            '31cc97675dd7176a1f6924d5a16a691d17f91da3ee12c68d077b985e6b216ae1')
+
+prepare() {
+  cd $pkgbase-$pkgver
+  patch --forward --input="${srcdir}"/pycosat.c.diff pycosat.c
+}
 
 build() {
   cd $pkgbase-$pkgver