basix-pkgbuild/PKGBUILD

# Maintainer: entschuld < edgar -a t . openmail.cc>

_base=basix
pkgname=fenics-"${_base}"-git
pkgdesc="C++ interface of FEniCS for ordinary and partial differential equations (from git release)."
pkgver=0.8.0_r1067.0ed41b0
pkgrel=1
arch=('i686' 'x86_64')
url="https://github.com/FEniCS/${_base}"
license=('MIT')
groups=('fenics-git')
depends=("blas-openblas" "petsc")
makedepends=("boost" "gcc" "git" "pybind11" "python-build" "python-installer" "python-numpy" "python-scikit-build" "python-setuptools" "nanobind")
checkdepends=("python-sympy")
options=(!emptydirs)
source=("git+${url}#branch=release")
sha512sums=('SKIP')

provides=("${_base}=${pkgver}"
          "fenics-${_base}=${pkgver}")
replaces=("${provides}")
conflicts=("${_base}" "fenics-${_base}")
#  From UPC: Building And Using Static And Shared "C"
#  Libraries.html
# #+begin_QUOTE
# we need that all jump calls ("goto", in assembly speak)
# and subroutine calls will use relative addresses, and not
# absolute addresses. Thus, we need to use ... ~-fPIC~ or
# ~-fpic~
# #+end_QUOTE
#
#  From makepkg.conf
# -march (or -mcpu) builds exclusively for an architecture
# -mtune optimizes for an architecture, but builds for
#  whole processor family
#
# -O3 optimises
#
# -D-FORTIFY-SOURCE=2
# | https://stackoverflow.com/a/16604146
# |- man 7 feature_test_macros
# checks to be performed to detect some buffer overflow
# errors when employing various string and memory
# manipulation functions ... some  conforming programs
# might fail
#
# -fcf-protection
# | Info pages for gcc (gnu compiler collection)
# intended to protect against such threats as
# Return-oriented Programming (ROP), and similarly
# call/jmp-oriented programming (COP/JOP)
#
# -pipe
# | Info pages for gcc (controlling the kind of output)
# Use pipes rather than temporary files for communication
# between the various stages of compilation
#
# -fno-plt
# | Info pages for gcc (code generation conventions)
# leads to more efficient code by eliminating PLT stubs and
# exposing GOT loads to optimizations
#
# -fopenmp
# | Info pages for gcc (controlling c dialect)
# Enable handling of OpenMP directives
#

safe_flags="-Wp,-D_FORTIFY_SOURCE=2,-D_GLIBCXX_ASSERTIONS"
safe_flags+=" -fcf-protection -fno-plt"
safe_flags+=" -fstack-clash-protection -Wformat"
safe_flags+=" -Werror=format-security"
generic_flags="-pipe -fno-plt -fPIC -fopenmp"
generic_flags+=" -march=native"
generic_flags+=" -mtune=native ${safe_flags}"
opt_flags="${generic_flags} -O3"
generic_flags="${generic_flags} -O2"

export COPTFLAGS="${opt_flags}"
export CXXOPTFLAGS="$COPTFLAGS"
export FOPTFLAGS="$COPTFLAGS"
export CPPFLAGS="$generic_flags"
export CXXFLAGS="$CPPFLAGS"
export CFLAGS="$generic_flags"
export FFLAGS="$generic_flags"
export FCFLAGS="$generic_flags"
export F90FLAGS="$generic_flags"
export F77FLAGS="$generic_flags"

export CC=mpicc
export CXX=mpicxx
export FC=mpif90
export F90=mpif90

export LANG=en_IE.UTF-8
export LC_ALL=en_IE.UTF-8

_base_dir="${startdir}"/src/"${_base}"

prepare() {
  cd "${_base_dir}"
  git -C "${_base_dir}" clean -dfx
}

pkgver() {
  cd "${_base_dir}"
  # One day, there will be a tag in the repo (or a single
  # file to analyse) and this will not be needed
  for i in pyproject.toml setup.cfg setup.py; do
    # Check if /version/ exists in any of these files
    if [[ -n $(grep 'version.*=' $i) ]]; then
      # Get version by removing " , ', spaces and =
      tag="$(grep -m 1 'version[[:space:]]*=' "${i}" |
            tr -d '", ' | tr -d "'" | cut -d'=' -f2)"
      break;
    fi;
  done
  printf "%s_r%s.%s" \
         ${tag%%.} \
         "$(git rev-list --count HEAD)" \
         "$(git rev-parse --short=7 HEAD)"
}

# # Skip tests
# check (){
# }

build() {
  [ -n "$PETSC_DIR" ] && source /etc/profile.d/petsc.sh

  # May want to look at pyproject.toml, .github/workflows,
  # python/setup.py for inspiration
  cmake -DCMAKE_BUILD_TYPE="Release" \
        -B "${srcdir}"/build \
        -S "${_base_dir}" \
        -DCMAKE_INSTALL_PREFIX=/usr
  cmake --build "${srcdir}"/build
}

package() {
  # cd "${srcdir}"/"${_base}"/cpp
  cmake --install "${srcdir}"/build --prefix="${pkgdir}"/usr
}