#!/bin/bash
#
#  $Header: /home/ubuntu/mnt/e9_copy/MITgcm/tools/build_options/Attic/linux_amd64_gfortran+mpi_generic,v 1.2 2010/12/25 18:25:56 jmc Exp $
#  $Name:  $
#

#  Tested with gcc-gfortran v4.1.x on FC5, FC6, FC8, using flags
#              formally for gcc-gfortran 4.3*
#       + with gcc-gfortran v4.3.x on FC9, FC10
#       + with gcc-gfortran v4.4.x on FC11,FC12,FC13
#
# on baudelaire.csail.mit.edu (FC13), uses:
#  export MPI_GCC_DIR=/srv/software/gcc/gcc-packages/gcc-4.4.5/mpich2/mpich2-1.3
#  export MPI_INC_DIR=$MPI_GCC_DIR/include
#  export PATH=$MPI_GCC_DIR/bin:$PATH
#
#-------
# run with OpenMP: needs to set environment var. OMP_NUM_THREADS
#    and generally, needs to increase the thread stack-size:
#   -  sh,bash:
#     > export OMP_NUM_THREADS=2
#     > export GOMP_STACKSIZE=400m
#   - csh,tcsh:
#     > setenv OMP_NUM_THREADS 2
#     > setenv GOMP_STACKSIZE 400m
#-------

FC=${FC:=mpif77}
F90C=${F90C:=mpif90}
CC=${CC:=mpicc}

DEFINES='-DWORDLENGTH=4 -DNML_TERMINATOR'
CPP='cpp -traditional -P'
EXTENDED_SRC_FLAG='-ffixed-line-length-132'
GET_FC_VERSION="--version"
OMPFLAG='-fopenmp'

NOOPTFLAGS='-O0'
NOOPTFILES=''

INCLUDEDIRS=''
INCLUDES=''
LIBS=''

if test "x$DEVEL" != x ; then
    FFLAGS='-g -Wall -W -ffpe-trap=invalid,zero,overflow -fbounds-check'
else
    FFLAGS=''
fi

# Requires gfortran from 2006 onwards for -fconvert=big-endian
FFLAGS="$FFLAGS -fconvert=big-endian -fimplicit-none"
# for big objects:
FFLAGS="$FFLAGS -fPIC"

if test "x$IEEE" = x ; then
    #  No need for IEEE-754
    FOPTIM='-O3 -funroll-loops'
    CFLAGS="$FOPTIM -fPIC"
else
    #  Try to follow IEEE-754
    FFLAGS="$FFLAGS -Waliasing -Wampersand -Wsurprising -Wline-truncation"
    FOPTIM='-O0'
    CFLAGS="$FOPTIM -fPIC"
#   to get plenty of warnings :
#   FFLAGS="$FFLAGS -Wconversion -Wimplicit-interface -Wunused-labels"
#   more checking (to use with testreport, put DEVEL option in IEEE section):
#   FOPTIM="$FOPTIM -g -ffpe-trap=invalid,zero,overflow -fbounds-check"
fi
F90FLAGS=$FFLAGS
F90OPTIM=$FOPTIM

if [ "x$NETCDF_ROOT" != x ] ; then
    INCLUDEDIR="${NETCDF_ROOT}/include"
    INCLUDES="-I${NETCDF_ROOT}/include"
    LIBDIR="${NETCDF_ROOT}/lib"
    LIBS="-L${NETCDF_ROOT}/lib"
elif [ "x$NETCDF_HOME" != x ]; then
    INCLUDEDIR="${NETCDF_HOME}/include"
    INCLUDES="-I${NETCDF_HOME}/include"
    LIBDIR="${NETCDF_HOME}/lib"
    LIBS="-L${NETCDF_HOME}/lib"
elif [ "x$NETCDF_INC" != x -a "x$NETCDF_LIB" != x ]; then
    NETCDF_INC=`echo $NETCDF_INC | sed 's/-I//g'`
    NETCDF_LIB=`echo $NETCDF_LIB | sed 's/-L//g'`
    INCLUDEDIR="${NETCDF_INC}"
    INCLUDES="-I${NETCDF_INC}"
    LIBDIR="${NETCDF_LIB}"
    LIBS="-L${NETCDF_LIB}"
elif [ "x$NETCDF_INCDIR" != x -a "x$NETCDF_LIBDIR" != x ]; then
    INCLUDEDIR="${NETCDF_INCDIR}"
    INCLUDES="-I${NETCDF_INCDIR}"
    LIBDIR="${NETCDF_LIBDIR}"
    LIBS="-L${NETCDF_LIBDIR}"
elif test -d /usr/include/netcdf-3 ; then
    INCLUDES='-I/usr/include/netcdf-3'
    LIBS='-L/usr/lib/netcdf-3 -L/usr/lib64/netcdf-3'
elif test -d /usr/include/netcdf ; then
    INCLUDES='-I/usr/include/netcdf'
elif test -d /usr/local/netcdf ; then
    INCLUDES='-I/usr/local/netcdf/include'
    LIBS='-L/usr/local/netcdf/lib'
elif test -d /usr/local/include/netcdf.inc ; then
    INCLUDES='-I/usr/local/include'
    LIBS='-L/usr/local/lib64'
fi

INCLUDES="$INCLUDES -I$MPI_INC_DIR"
INCLUDEDIRS="$INCLUDEDIRS $MPI_INC_DIR"
MPIINCLUDEDIR="$MPI_INC_DIR"
MPI_HEADER_FILES='mpif.h mpiof.h'
MPI_HEADER_FILES_INC='./mpi_headers/mpif.h ./mpi_headers/mpiof.h'