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#                            -*- shell-script -*-
#
# Copyright by The HDF Group.
# All rights reserved.
#
# This file is part of HDF5.  The full HDF5 copyright notice, including
# terms governing use, modification, and redistribution, is contained in
# the COPYING file, which can be found at the root of the source code
# distribution tree, or in https://www.hdfgroup.org/licenses.
# If you do not have access to either file, you may request a copy from
# help@hdfgroup.org.


# This file should be sourced into configure if the compiler is the
# Intel ifort compiler or a derivative.  It is careful not to do anything
# if the compiler is not Intel; otherwise `f9x_flags_set' is set to `yes'
#

#
# Prepend `$srcdir/config/intel-warnings/` to the filename suffix(es) given as
# subroutine argument(s), remove comments starting with # and ending
# at EOL, replace spans of whitespace (including newlines) with spaces,
# and re-emit the file(s) thus filtered on the standard output stream.
#
load_intel_arguments()
{
    set -- $(for arg; do
        sed 's,#.*$,,' $srcdir/config/intel-warnings/${arg}
    done)
    IFS=' ' echo "$*"
}

# Get the compiler version in a way that works for ifort
# ifort unless a compiler version is already known
#
#   f9x_vendor:    The compiler name: ifort
#   f9x_version:   Version number: 8.0
#
if test X = "X$f9x_flags_set"; then
    f9x_version="`$FC $FCFLAGS $H5_FCFLAGS -V 2>&1 |grep '^Intel'`"
    if test X != "X$f9x_version"; then
        f9x_vendor=ifort
        f9x_version="`echo $f9x_version |sed 's/.*Version \([-a-z0-9\.\-]*\).*/\1/'`"
        echo "compiler '$FC' is Intel $f9x_vendor-$f9x_version"

        # Some version numbers
        # Intel version numbers are of the form: "major.minor"
        f9x_vers_major=`echo $f9x_version | cut -f1 -d.`
        f9x_vers_minor=`echo $f9x_version | cut -f2 -d.`
        #f9x_vers_patch=`echo $f9x_version | cut -f2 -d.`
        test -n "$f9x_vers_major" || f9x_vers_major=0
        test -n "$f9x_vers_minor" || f9x_vers_minor=0
        test -n "$f9x_vers_patch" || f9x_vers_patch=0
        f9x_vers_all=`expr $f9x_vers_major '*' 1000000 + $f9x_vers_minor '*' 1000 + $f9x_vers_patch`
    fi
fi

if test "X-ifort" = "X-$f9x_vendor"; then

    FC_BASENAME=ifort
    F9XSUFFIXFLAG=""
    FSEARCH_DIRS=""

    ###############################
    # Architecture-specific flags #
    ###############################

    arch=
    # Nothing currently. (Uncomment code below and modify to add any)
    #case "$host_os-$host_cpu" in
    #    *-i686)
    #        arch="-march=i686"
    #        ;;
    #esac

    # Host-specific flags
    # Nothing currently. (Uncomment code below and modify to add any)
    #case "`hostname`" in
    #    sleipnir.ncsa.uiuc.edu)
    #        arch="$arch -pipe"
    #        ;;
    #esac

    ##############
    # Production #
    ##############

    PROD_FCFLAGS=

    #########
    # Debug #
    #########

    DEBUG_FCFLAGS="-check all"

    ###########
    # Symbols #
    ###########

    NO_SYMBOLS_FCFLAGS=
    SYMBOLS_FCFLAGS="-g"

    #############
    # Profiling #
    #############

    PROFILE_FCFLAGS="-p"

    ################
    # Optimization #
    ################

    HIGH_OPT_FCFLAGS="-O3"
    DEBUG_OPT_FCFLAGS=
    NO_OPT_FCFLAGS=

    ############
    # Warnings #
    ############

    ###########
    # General #
    ###########

    H5_FCFLAGS="$H5_FCFLAGS -stand:f03 -free"
    H5_FCFLAGS="$H5_FCFLAGS $(load_intel_arguments ifort-general)"

    #############################
    # Version-specific warnings #
    #############################


    #################
    # Flags are set #
    #################
    f9x_flags_set=yes
fi

# Clear f9x info if no flags set
if test "X-$f9x_flags_set" = "X-"; then
  f9x_vendor=
  f9x_version=
fi