#!/usr/bin/env modbuild
# Needs to be built with SSE2 and AVX2 support, but should run on architectures without this

pbuild::add_to_group 'MPI'

pbuild::set_download_url "http://www.fftw.org/fftw-${V_PKG}.tar.gz"
pbuild::set_sha256sum "fftw-3.3.8.tar.gz:6113262f6e92c5bd474f2875fa1b01054c4ad5040f6b0da7c03c98821d9ae303"

pbuild::install_docfiles 'COPYRIGHT' 'COPYING' 'README' 'NEWS'

pbuild::pre_configure() {
    pbuild::add_configure_args "CC=${MPICC}"
    pbuild::add_configure_args "CXX=${MPICXX}"

    # Multithreading. Enabling both is fine
    pbuild::add_configure_args "--enable-threads"
    pbuild::add_configure_args "--enable-openmp"

    # MPI support
    pbuild::add_configure_args "--enable-mpi"

    # CPU optimizations
    pbuild::add_configure_args "--enable-sse2"
    pbuild::add_configure_args "--enable-avx2"
    pbuild::add_configure_args "--with-pic"
    #pbuild::add_configure_args "--enable-shared"

    # Floating point precision
    #pbuild::add_configure_args "--enable-type-prefix"
    if pbuild::use_flag "sp"; then
        pbuild::add_configure_args "--enable-single"
        pbuild::add_configure_args "--enable-sse"
    elif pbuild::use_flag "dp"; then
        : #default
    else
        echo "No flag specified" >&2
        exit 1
    fi
}