PKGBUILD (not patch) for gerbil-scheme-git in AUR

PKGBUILD

# This is an example PKGBUILD file. Use this as a start to creating your own,
# and remove these comments. For more information, see 'man PKGBUILD'.
# NOTE: Please fill out the license field for your package! If it is unknown,
# then please put 'unknown'.

# See http://wiki.archlinux.org/index.php/VCS_PKGBUILD_Guidelines
# for more information on packaging from GIT sources.

# Maintainer: Peter <craven@gmx.net>
pkgname=gerbil-scheme-git
pkgver=0.16.r139.g41625f7b
pkgrel=1
pkgdesc="Gerbil is an opinionated dialect of Scheme designed for Systems Programming, with a state of the art macro and module system on top of the Gambit runtime."
arch=(x86_64 i686)
url="https://github.com/vyzo/gerbil"
license=('LGPLv2.1' 'Apache 2.0')
groups=()
depends=('gambit-c')
makedepends=('git' 'gambit-c')
provides=()
conflicts=()
replaces=()
backup=()
options=()
install=
source=('gerbil::git+https://github.com/vyzo/gerbil.git#branch=master')
md5sums=('SKIP')


noextract=()
#generate with 'makepkg -g'

pkgver() {
  cd gerbil
  # cutting off 'v' prefix that presents in the git tag
  git describe --tags | sed 's/^v//;s/\([^-]*-g\)/r\1/;s/-/./g'
}

build() {
  cd "$srcdir/gerbil/src"
  ./configure
  GERBIL_GSC=/usr/bin/gsc-script ./build.sh
}

package() {
  cd "$srcdir/gerbil"
  mkdir -p ${pkgdir}/opt/gerbil-scheme-git
  cp -R bin ${pkgdir}/opt/gerbil-scheme-git/bin
  cp -R doc ${pkgdir}/opt/gerbil-scheme-git/doc
  cp -R etc ${pkgdir}/opt/gerbil-scheme-git/etc
  cp -R lib ${pkgdir}/opt/gerbil-scheme-git/lib
  cp -R CHANGELOG.md ${pkgdir}/opt/gerbil-scheme-git/CHANGELOG.md
  cp -R README.md ${pkgdir}/opt/gerbil-scheme-git/README.md
  mkdir -p ${pkgdir}/etc/profile.d/
  cat <<EOF > ${pkgdir}/etc/profile.d/gerbil-scheme-git.sh
#!/bin/bash
export GERBIL_GSC=/usr/bin/gsc-script
export GERBIL_HOME=/opt/gerbil-scheme-git
export PATH=/opt/gerbil-scheme-git/bin:\$PATH
EOF
}

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