petsc-orig-pkgbuild/test_optdepends.sh

#!/bin/bash

# Test if external packages for PETSC are installed

# Fair attempt to find the directory of a header file
find_inc () {
    local INC;
    INC="$(find_so "$1")";
    # * Faster first
    if [ -f "${INC}" ]; then
        INC="${INC}";
    elif [ -f "${INC}"/"$1" ]; then
        # ** The header is inside INC (a directory) e.g.
        #    /usr/include/scotch
        #    /usr/include/scotch/scotch.h
        INC="${INC}"/"$1"
    elif [ -d "${INC}" ]; then
        # ** INC is a directory, and the header is deep inside
        #    (hopefully faster than `pacman')
        INC="$(find "${INC}" -name "$1" -print -quit)";
    elif [ ! "x$2" == "x" ]; then
        # ** May be there is a package?
        pacman -Qs "$2" 2>&1>/dev/null && \
            INC="$(pacman -Qlq "$2" | grep "/$1\$" || printf "")";
    fi;
    dirname "${INC}"
}

# Find a shared object (library; .so extension)
#   example: find_so libboost_mpi
find_so () {
    whereis -b "$1" | cut -d' ' -f2
}

CONFOPTS=""

## External downloads
#for external_pkg in hypre; do
  #CONFOPTS="${CONFOPTS} --download-${external_pkg}=1"
#done

# Hypre: Large and sparse linear with massive parallel
# computing
# CONFOPTS+=" --with-hypre=0"
HYPRE_SO="$(find_so libHYPRE.so)"
if [ -f "${HYPRE_SO}" ]; then
	CONFOPTS="${CONFOPTS} --with-hypre=1"
	CONFOPTS="${CONFOPTS} --with-hypre-lib=${HYPRE_SO}"
    HYPRE_INC="$(find_inc "HYPRE.h" "hypre")"
	CONFOPTS="${CONFOPTS} --with-hypre-include=${HYPRE_INC}"
fi

# FFTW
if [ -f "/usr/lib/pkgconfig/fftw3.pc" ]; then
  CONFOPTS="${CONFOPTS} --with-fftw=1"
fi

# HDF5
if [ -f "/usr/lib/pkgconfig/hdf5.pc" ]; then
  CONFOPTS="${CONFOPTS} --with-hdf5=1 --with-hdf5-fortran-bindings=1"
fi

# (Par)METIS
if [ -f "/usr/include/metis.h" ]; then
  CONFOPTS="${CONFOPTS} --with-metis=1"
  if [ -f "/usr/include/parmetis.h" ]; then
    CONFOPTS="${CONFOPTS} --with-parmetis=1"
  fi
fi

# MUMPS
if [ -f "/usr/lib/libmumps_common.so" ]; then
  CONFOPTS="${CONFOPTS} --with-mumps=1"
fi

# PaStiX https://gitlab.com/petsc/petsc/-/issues/1259
#if [ -f "/usr/lib/pkgconfig/pastic.pc" ]; then
#  CONFOPTS="${CONFOPTS} --with-pastix=1"
#fi

# ScaLAPACK
if [ -f "/usr/lib/pkgconfig/scalapack.pc" ]; then
  CONFOPTS="${CONFOPTS} --with-scalapack=1"
fi

# Scotch: Partitioning with sparse matrices
# TODO: general (non-pacman) way
PTSCOTCH_SO="$(find_so libptscotch.so)"
if [ -f "${PTSCOTCH_SO}" ]; then
CONFOPTS="${CONFOPTS} --with-ptscotch=1"
SCOTCH_LIBS=$(pacman -Qlq scotch | grep '.so$'| tr '\n' ',')
# Check if libscotch was compiled with bz2
if [ ! -z "$(nm -D $(find_so libscotch.so) | grep bz)" ]; then
SCOTCH_LIBS="${SCOTCH_LIBS}$(find_so libbz2.so)"
else
    # Remove trailing ,
    SCOTCH_LIBS="${SCOTCH_LIBS%%,}"
fi;
CONFOPTS="${CONFOPTS} --with-ptscotch-lib=[${SCOTCH_LIBS}]"
CONFOPTS="${CONFOPTS} --with-ptscotch-include="
CONFOPTS="${CONFOPTS}$(find_inc ptscotch.h scotch)"
fi

# SuiteSparse
if [ -f "/usr/include/SuiteSparse_config.h" ]; then
  CONFOPTS="${CONFOPTS} --with-suitesparse=1"
fi

# SuperLU
if [ -f "/usr/lib/pkgconfig/superlu.pc" ]; then
  CONFOPTS="${CONFOPTS} --with-superlu-lib=-lsuperlu --with-superlu-include=/usr/include/superlu"
fi

# SuperLU_DIST
if [ -f "/usr/lib/pkgconfig/superlu_dist.pc" ]; then
  CONFOPTS="${CONFOPTS} --with-superlu_dist-lib=-lsuperlu_dist --with-superlu_dist-include=/usr/include/superlu_dist"
fi

# Triangle
if [ -f "/usr/lib/libtriangle.so" ]; then
  CONFOPTS="${CONFOPTS} --with-triangle=1"
fi

# Trilinos (ML)
if [ -f "/usr/lib/libml.so" ]; then
  CONFOPTS="${CONFOPTS} --with-ml=1"
  # Add boost support (may be useful for trilinos)
  CONFOPTS="${CONFOPTS} --with-boost=1"
fi

echo "${CONFOPTS}"