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## Copyright (C) 2002 M. Marques, A. Castro, A. Rubio, G. Bertsch
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation; either version 2, or (at your option)
## any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
## 02110-1301, USA.
##
##
################################################
# Get default FFLAGS
# ----------------------------------
# this function can certainly be improved on
AC_DEFUN([ACX_FCFLAGS],
[
AC_REQUIRE([AC_CANONICAL_HOST])
if test -z "${FCFLAGS}"; then
case "${FC}" in
gfortran*)
FCFLAGS="-pipe -O3 -funroll-loops -ffast-math -ffree-line-length-none"
;;
openf9*)
FCFLAGS="-O3 -funroll-loops -ffast-math"
;;
g95*)
FCFLAGS="-pipe -O3 -funroll-loops -ffast-math"
;;
efc*|ifc*|ifort*)
case "${host}" in
x86_64*)
FCFLAGS="-u -fpp1 -nbs -pc80 -pad -align -unroll -O3 -ip -no-fp-port -mno-ieee-fp -vec-report0 -no-prec-div"
;;
i?86*linux*)
FCFLAGS="-u -fpp1 -nbs -pc80 -pad -align -unroll -O3 -ip -no-fp-port -mno-ieee-fp -vec-report0 -no-prec-div"
a=`echo $host | sed "s/^i//" | sed "s/86.*//"`
if test "$a" -gt 5 ; then
FCFLAGS="$FCFLAGS -tpp7 -xW"
fi
;;
ia64*)
FCFLAGS="-O3 -ip -IPF_fp_relaxed -ftz -fpp -u -align all -pad"
;;
esac
;;
sun*)
case "${host}" in
i?86*linux*|x86_64*)
FCFLAGS="-fast -xprefetch -xvector=simd"
;;
sparc*)
FCFLAGS="-fast"
;;
esac
;;
pathf9*)
FCFLAGS="-O3 -march=auto -mcpu=auto -OPT:Ofast -fno-math-errno -LNO:simd=2 -OPT:align_unsafe=ON"
;;
pgf90*)
FCFLAGS="-O4 -fast -Munroll -Mnoframe -Mdalign"
;;
abf90*)
FCFLAGS="-O3 -YEXT_NAMES=LCS -YEXT_SFX=_"
;;
xlf*)
FCFLAGS="-O3 -qarch=auto -qtune=auto -qcache=auto -qxlf90=autodealloc"
;;
f9*)
case "${host}" in
alphaev*)
FCFLAGS="-align dcommons -fast -tune host -arch host -noautomatic"
;;
mips*)
FCFLAGS="-Ofast -O3"
;;
sparc*)
FCFLAGS="-fast"
;;
*)
FCFLAGS="-O3"
;;
esac
;;
*)
FCFLAGS="-O3"
;;
esac
fi
AC_MSG_NOTICE([Using FCFLAGS="$FCFLAGS"])
])
|
