--- PKGBUILD.old	2020-02-25 23:38:18.000000000 +0100
+++ PKGBUILD	2020-02-25 23:44:16.658047919 +0100
@@ -7,20 +7,20 @@
 arch=('x86_64')
 url='https://github.com/Hummer12007/brightnessctl'
 license=('MIT')
+depends=('systemd-libs')
 source=(
   "${pkgname}-${pkgver}.tar.gz::https://github.com/Hummer12007/brightnessctl/archive/${pkgver}.tar.gz"
 )
 sha512sums=('41ac86357b3b5a3d54a043140a6bdb1fb68d5080a16e86692059ad58f4b9134a8532432a3f664c70c665a4ad73ea8a94cc9b88fa84abc28f0356b8b397aaebc7')
-install='brightnessctl.install'
 
 build() {
   cd "${pkgname}-${pkgver}"
-  make
+  make ENABLE_SYSTEMD=1
 }
 
 package() {
   cd "${pkgname}-${pkgver}"
-  make UDEVDIR="/usr/lib/udev/rules.d" INSTALL_UDEV_RULES=1 DESTDIR="$pkgdir" install
+  make ENABLE_SYSTEMD=1 DESTDIR="$pkgdir" install
 
   mkdir -p "${pkgdir}/usr/share/licenses/${pkgname}"
   install -m 0644 LICENSE "${pkgdir}/usr/share/licenses/${pkgname}/"