#                            -*- 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
# NVIDIA nvc compiler or a derivative.  It is careful not to do anything
# if the compiler is not nvcc; otherwise `cc_flags_set' is set to `yes'
#

# Get the compiler version in a way that works for nvc
# unless a compiler version is already known
#
#   cc_vendor:    The compiler name: nvc
#   cc_version:   Version number: 5.0-2, 5.2-2
#
if test X = "X$cc_flags_set"; then
    cc_version="`$CC $CFLAGS -V 2>&1 |grep '^nvc '`"
    if test X != "X$cc_version"; then
        is_mpi="`$CC $CFLAGS -help 2>&1 |grep 'MPI'`"
        cc_vendor=`echo $cc_version |sed 's/\([a-z]*\).*/\1/'`
        cc_version=`echo $cc_version |sed 's/nvc \([-a-z0-9\.\-]*\).*/\1/'`
        echo "compiler '$CC' is NVIDIA $cc_vendor-$cc_version"

        # Some version numbers
        # NVIDIA version numbers are of the form: "major.minor-patch"
        cc_vers_major=`echo $cc_version | cut -f1 -d.`
        cc_vers_minor=`echo $cc_version | cut -f2 -d. | cut -f1 -d-`
        cc_vers_patch=`echo $cc_version | cut -f2 -d. | cut -f2 -d-`
        test -n "$cc_vers_major" || cc_vers_major=0
        test -n "$cc_vers_minor" || cc_vers_minor=0
        test -n "$cc_vers_patch" || cc_vers_patch=0
        cc_vers_all=`expr $cc_vers_major '*' 1000000 + $cc_vers_minor '*' 1000 + $cc_vers_patch`
    fi
fi

# Common PGI flags for various situations
if test "X-nvc" = "X-$cc_vendor" -o "X-nvcc" = "X-$cc_vendor"; then
    # Insert section about version specific problems from compiler flags here,
    # if necessary.

    arch=
    # Architecture-specific flags
    # 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

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

    # Default to C99 standard.
    H5_CFLAGS="$H5_CFLAGS $arch -c99 -Minform=warn"

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

    # NDEBUG is handled explicitly by the configure script
    #PROD_CFLAGS="-fast"
    PROD_CFLAGS=""           # -fast implies -O2 and -O2+ currently has test failures.

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

    # NDEBUG is handled explicitly by the configure script
    # -g is handled by the symbols flags
    DEBUG_CFLAGS="-Mbounds"

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

    NO_SYMBOLS_CFLAGS="-s"
    SYMBOLS_CFLAGS="-g"

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

    PROFILE_CFLAGS="-Mprof=func,line"
    # Use this for profiling with gprof
    #PROFILE_CFLAGS="-pg"

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

    HIGH_OPT_CFLAGS="-O1"         # -O2+ currently has test failures.
    #DEBUG_OPT_CFLAGS="-gopt -O2"
    DEBUG_OPT_CFLAGS="-gopt -O1"  # -O2+ currently has test failures.
    NO_OPT_CFLAGS="-O0"

    #################
    # Flags are set #
    #################
    cc_flags_set=yes
fi

# Clear cc info if no flags set
if test "X-$cc_flags_set" = "X-"; then
    cc_vendor=
    cc_version=
fi