You seem to be missing xorg-xcursorgen as a dependency in the latest version. Installing it fixes the build for me.

Please change pkgver variable. # Maintainer: Philip Goto pkgname=mato-icons-git pkgver=b68372f pkgrel=1 pkgdesc="Mato is a Material Design inspired icon theme for Linux. It features simple and modern icons based on the official icons." arch=('any') url="https://github.com/flipflop97/Mato" license=('Creative Commons Attribution-ShareAlike 4.0 International Public License') makedepends=('git') provides=('mato-icons-git') options=(!strip !emptydirs) install='mato-icons-git.install' source=("${pkgname}::git+https://github.com/flipflop97/Mato.git") sha256sums=('SKIP') pkgver() { cd "${pkgname}" git rev-parse --short HEAD } package() { install -dm 755 "${pkgdir}"/usr/share/icons mkdir "${pkgdir}"/usr/share/icons/Mato cp -dr --no-preserve='ownership' "${pkgname}"/* "${pkgdir}"/usr/share/icons/Mato rm "${pkgdir}"/usr/share/icons/Mato/install.sh }