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# -*- shell-script -*-
#
# Copyright by The HDF Group.
# Copyright by the Board of Trustees of the University of Illinois.
# 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://support.hdfgroup.org/ftp/HDF5/releases.
# 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
# GNU g95/gfortran compiler or a derivative. It is careful not to do anything
# if the compiler is not GNU; otherwise `f9x_flags_set' is set to `yes'
#
#
# Prepend `$srcdir/config/gnu-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_gnu_arguments()
{
set -- $(for arg; do
sed 's,#.*$,,' $srcdir/config/gnu-warnings/${arg}
done)
IFS=' ' echo "$*"
}
# Get the compiler version in a way that works for GNU fortran
# gfortran unless a compiler version is already known
#
# f9x_vendor: The compiler name: gfortran
# f9x_version: Version number: 5.0-2, 5.2-2
#
if test X = "X$f9x_flags_set"; then
f9x_version="`$FC $FCFLAGS $H5_FCFLAGS -v 2>&1 |grep 'gcc version' |\
sed 's/.*gcc version \([-a-z0-9\.]*\).*/\1/'`"
if test X != "X$f9x_version"; then
f9x_vendor=`echo $f9x_version |sed 's/\([a-z]*\).*/\1/'`
f9x_version=`echo $f9x_version |sed 's/[-a-z]//g'`
if test X = "X$f9x_vendor" -a X != "X$f9x_version"; then
f9x_vendor=gfortran
fi
if test "-" != "$f9x_vendor-$f9x_version"; then
echo "compiler '$FC' is GNU $f9x_vendor-$f9x_version"
fi
# Get the compiler version numbers
f9x_vers_major=`echo $f9x_version | cut -f1 -d.`
f9x_vers_minor=`echo $f9x_version | cut -f2 -d.`
f9x_vers_patch=`echo $f9x_version | cut -f3 -d.`
test -n "$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
fi
fi
if test "X-gfortran" = "X-$f9x_vendor"; then
FC_BASENAME=gfortran
F9XSUFFIXFLAG=""
FSEARCH_DIRS=""
# Need Fortran 2008 support for storage_size() in gcc 4.6 on
# (2008ts in some versions)
if test $f9x_vers_major -ge 8; then
H5_FCFLAGS="$H5_FCFLAGS -std=f2008"
elif test $f9x_vers_major -ge 5 -o $f9x_vers_major -eq 4 -a $f9x_vers_minor -ge 6; then
H5_FCFLAGS="$H5_FCFLAGS -std=f2008ts"
fi
###############################
# 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
H5_FCFLAGS="$H5_FCFLAGS $arch"
##############
# Production #
##############
PROD_FCFLAGS=
#########
# Debug #
#########
if test $f9x_vers_major -ge 5 -o $f9x_vers_major -eq 4 -a $f9x_vers_minor -ge 5; then
DEBUG_FCFLAGS="-fcheck=all"
else
DEBUG_FCFLAGS="-fbounds-check"
fi
########################
# Enhanced Diagnostics #
########################
if test $cc_vers_major -ge 10; then
NO_DIAGS_FCFLAGS="-fdiagnostics-urls=never -fno-diagnostics-color"
fi
DIAGS_FCFLAGS=
###########
# Symbols #
###########
NO_SYMBOLS_FCFLAGS="-s"
SYMBOLS_FCFLAGS="-g"
#############
# Profiling #
#############
PROFILE_FCFLAGS="-pg"
################
# Optimization #
################
if test $f9x_vers_major -le 4; then
HIGH_OPT_FCFLAGS="-O3"
DEBUG_OPT_FCFLAGS=
else
HIGH_OPT_FCFLAGS="-O3"
DEBUG_OPT_FCFLAGS="-Og"
fi
NO_OPT_FCFLAGS="-O0"
############
# Warnings #
############
###########
# General #
###########
H5_FCFLAGS="$H5_FCFLAGS $(load_gnu_arguments gfort-general)"
#############################
# Version-specific warnings #
#############################
# gfortran >= 4.8
if test $f9x_vers_major -ge 5 -o $f9x_vers_major -eq 4 -a $f9x_vers_minor -ge 8; then
H5_FCFLAGS="$H5_FCFLAGS $(load_gnu_arguments gfort-4.8)"
fi
# gfortran 4.9 (nothing new)
# gfortran >= 5
if test $f9x_vers_major -ge 5; then
H5_FCFLAGS="$H5_FCFLAGS $(load_gnu_arguments gfort-5)"
fi
# gfortran >= 6
if test $f9x_vers_major -ge 6; then
H5_FCFLAGS="$H5_FCFLAGS $(load_gnu_arguments gfort-6)"
fi
# gfortran 7 (nothing new)
# gfortran >= 8
if test $f9x_vers_major -ge 8; then
H5_FCFLAGS="$H5_FCFLAGS $(load_gnu_arguments gfort-8)"
fi
# gfortran 9 (nothing new)
#################
# Flags are set #
#################
f9x_flags_set=yes
fi
# Clear f9x info if no flags set
if test "X-$f9x_flags_set" = "X-"; then
f9x_vendor=
f9x_version=
fi
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