# Description: High performance message passing library (MPI)
# URL: https://www.open-mpi.org
# Maintainer: Tim Biermann, tbier at posteo dot de
# Depends on: eudev gcc-fortran libnl prrte
# Optional: cuda

name=openmpi
version=5.0.3
release=1
source=(https://www.open-mpi.org/software/ompi/v${version%.*}/downloads/$name-$version.tar.bz2
  fortran-flags.patch)

build() {
  cd $name-$version

  patch -Np1 -i $SRC/fortran-flags.patch

  sed -e 's,sys/unistd.h,unistd.h,g' -i opal/include/opal/sys/cma.h

  export CFLAGS+=" -O3"
  export CXXFLAGS+=" -O3"
  export FCFLAGS+=" -O3"

  ./autogen.pl --force --no-3rdparty libevent,hwloc,pmix,prrte

  sed -i 's|WRAPPER__FCFLAGS|WRAPPER_FCFLAGS|g' configure
  sed -i 's|WRAPPER_EXTRA_FCFLAGS|WRAPPER_FCFLAGS|g' configure

  ./configure \
    --prefix=/usr \
    --sysconfdir=/etc/$name \
    --libdir=/usr/lib/$name \
    --enable-builtin-atomics \
    --enable-mpi-fortran=all \
    --enable-pretty-print-stacktrace \
    --enable-ipv6 \
    --enable-mpi1-compatibility \
    --with-devel-headers \
    --with-hwloc=/usr \
    --with-pmix=/usr \
    --with-libevent=/usr \
    --with-prrte=/usr \
    FC=/usr/bin/gfortran \
    LDFLAGS="${LDFLAGS} -Wl,-z,noexecstack"
  sed -i -e 's/ -shared / -Wl,-O1,--as-needed\0/g' libtool

  make
  make DESTDIR=$PKG install

  install -dm 755 $PKG/usr/lib/pkgconfig
  for i in ompi-c.pc ompi-cxx.pc ompi-f77.pc ompi-f90.pc ompi.pc; do
    ln -sf /usr/lib/openmpi/pkgconfig/$i $PKG/usr/lib/pkgconfig/
  done

  install -dm 755 $PKG/etc/ld.so.conf.d
  echo /usr/lib/$name > $PKG/etc/ld.so.conf.d/$name.conf

  rm -r $PKG/usr/share/doc
}