#!/bin/sh

# This is a little helper script to build LWP static, and pthread shared and static
# objects from a single source file. We use libtool to do the heavy lifting for
# the pthreaded builds, but build the LWP objects here ourselves.

lwpcc=
mtcc=
linker=
ranlib=
mode=
object=
done=

while [ -z "$done" ] && [ $# -gt 0 ] ; do
    case "$1" in
    --lwpcc)
	shift
	lwpcc="$1"
	shift
	;;
    --mtcc)
	shift
	mtcc="$1"
	shift
	;;
    --linker)
	shift
	linker="$1"
	shift
	;;
    --mode)
	shift
	mode="$1"
	shift
	;;
    --ranlib)
	shift
	ranlib="$1"
	shift
	;;
    -o)
	shift
	object="$1"
	shift
	;;
    --)
	shift;
	done=yes
	;;
    *)
	echo "Usage: lwptool --mode compile|link -o <object> --lwpcc <lwp compiler> --mtcc <pthread compiler> -- ..." >&2;
	exit 1;
	;;
    esac
done

case "$mode" in
compile)
    if [ -z "$object" ] || [ -z "$lwpcc" ] || \
       [ -z "$mtcc" ] || [ -z "$mode" ] ; then
	echo "Usage: lwptool --mode compile -o <object>" >&2;
	echo "               --lwpcc <lwp compiler>" >&2;
	echo "               --mtcc <pthread compiler> blah -- ..." >&2;
        exit 1
    fi

    lwpobj=`echo $object | sed -e 's/.lo$/.o/'`
    lwpobj=".lwp/$lwpobj"

    mkdir .lwp 2>/dev/null
    echo $lwpcc -o $lwpobj "$@"
    $lwpcc -o $lwpobj "$@" || exit 1
    echo $mtcc -o $object "$@"
    $mtcc -o $object "$@" || exit 1
    ;;
link)
    if [ -z "$object" ] || [ -z "$linker" ] || \
       [ -z "$ranlib" ] ; then
	echo "Usage: l§wptool --mode linker -o <object>" >&2;
	echo "               --linker <linker and options>" >&2;
	echo "               --ranlib <ranlib>" >&2;
	exit 1
    fi

    # This will go horribly wrong if we ever have objects with shell
    # special characters in their names

    objects=
    while [ $# -gt 0 ] ; do
       arg=$1;
       realobject=`echo $arg | sed -e 's/\(.*\).lo/.lwp\/\1.o/'`
       objects="$objects $realobject"
       shift
    done

    rm -f $object 2>/dev/null
    echo $linker $object $objects
    $linker $object $objects
    echo $ranlib $object
    $ranlib $object
    ;;
esac