#----------------------------------*-sh-*--------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | Copyright (C) 2016-2017 OpenCFD Ltd.
#    \\/     M anipulation  |
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM, licensed under GNU General Public License
#     <http://www.gnu.org/licenses/>.
#
# File
#     etc/config.sh/FFTW
#
# Description
#     Setup for FFTW include/libraries (usually ThirdParty installation).
#     Sourced from OpenFOAM-<VERSION>/etc/bashrc
#
#     To disable its use:               fftw_version=fftw-none
#     For system-wide installations:    fftw_version=fftw-system
#
#     For central installations not located under ThirdParty:
#       1. use fftw-system
#       2. and provide full path for FFTW_ARCH_PATH
#
# Note
#     When _foamAddLib is unset (eg, called from makeFFTW):
#       - fftw_version variable is retained.
#       - LD_LIBRARY_PATH is not adjusted.
#
#     Can also disable by renaming/removing this file or by creating an empty
#     file with the same name at a user or site location.
#------------------------------------------------------------------------------
# USER EDITABLE PART: Changes made here may be lost with the next upgrade

fftw_version=fftw-3.3.7
export FFTW_ARCH_PATH=$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$fftw_version

# END OF (NORMAL) USER EDITABLE PART
#------------------------------------------------------------------------------
if [ "$FOAM_VERBOSE" -a "$PS1" ]
then
    echo "Using fftw ($fftw_version)  ->  $FFTW_ARCH_PATH" 1>&2
fi

if command -v _foamAddLib > /dev/null 2>&1  # normal sourcing
then

    # If FFTW_ARCH_PATH does not end with '-system' or '-none',
    # it is either located within ThirdParty, or a central installation
    # outside of ThirdParty and must be added to the lib-path.

    ending="${FFTW_ARCH_PATH##*-}"
    if [ "$ending" != none -a "$ending" != system ]
    then
        _foamAddLib $FFTW_ARCH_PATH/lib$WM_COMPILER_LIB_ARCH
    fi

    unset fftw_version ending

fi

#------------------------------------------------------------------------------