configure_mfix

#!/bin/bash -e
#
#  Wrapper script for running autoreconf (if necessary), running configure, and copying Makefile.usr to $PWD/Makefile
#

for target in mfix postmfix libmfix.a Makefile; do
    [ -d ${target} ] && echo "ERROR:  A directory exists named:  ${target}"
    [ -d ${target} ] && echo "ERROR:  "
    [ -d ${target} ] && echo "ERROR:  configure_mfix must be run in a directory containing only mfix.dat (and optional *usr*.f files)"
    [ -d ${target} ] && exit -1
done

# config.log is always in BUILD_DIR, but it may have been copied to RUN_DIR if the
# previous configure command failed.
rm -f config.log

# Set some of the folder paths.
RUN_DIR=$(pwd)
MFIX_HOME=$(cd $(dirname $0); pwd)

cd ${MFIX_HOME}
[ -f configure ] || autoreconf -i
args=("${@/--dmp/--enable-dmp}")
args=("${args[@]/--smp/--enable-smp}")

if [ ${MFIX_HOME} == ${RUN_DIR} ]; then
    # building in MFIX_HOME, no need to copy Makefile.usr
    ${MFIX_HOME}/configure "${args[@]}" || exit $?
else
    # Create BUILD_DIR
    args_dir_name=$( echo ${args[@]} | tr -c '[[:alnum:]].-' '_' )
    trunc_args_dir_name=$( echo ${args_dir_name} | cut -c 1-250 )
    BUILD_DIR=${MFIX_HOME}/build/${args_dir_name}
    [ ${args_dir_name} != ${trunc_args_dir_name} ] && rm -rf ${BUILD_DIR}
    mkdir -p ${BUILD_DIR}

    # configure in BUILD_DIR
    cd ${BUILD_DIR}
    set +e
    ${MFIX_HOME}/configure "${args[@]}"
    exit_code=$?
    set -e
    if [[ $exit_code != 0 ]]; then
        cp ${BUILD_DIR}/config.log ${RUN_DIR}/
        exit $exit_code
    fi

    # copy Makefile to RUN_DIR
    MAKEFILE=${RUN_DIR}/Makefile
    MAKEFILE_USR=${BUILD_DIR}/build-aux/Makefile.usr
    if [ -f ${MAKEFILE_USR} ]; then
	cp ${MAKEFILE_USR} ${MAKEFILE}
    fi
fi