shave-libtool.in

#!/bin/sh
#
# Copyright (c) 2009, Damien Lespiau <damien.lespiau@gmail.com>
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.

# we need sed
SED=@SED@
if test -z "$SED" ; then
SED=sed
fi

lt_unmangle ()
{
   last_result=`echo $1 | $SED -e 's#.libs/##' -e 's#[0-9a-zA-Z_\-\.]*_la-##'`
}

# the real libtool to use
LIBTOOL="$1"
shift

# if 1, don't print anything, the underlaying wrapper will do it
pass_though=0

# scan the arguments, keep the right ones for libtool, and discover the mode
preserved_args=

# have we seen the --tag option of libtool in the command line ?
tag_seen=0

while test "$#" -gt 0; do
    opt="$1"
    shift

    case $opt in
    --mode=*)
        mode=`echo $opt | $SED -e 's/[-_a-zA-Z0-9]*=//'`
        preserved_args="$preserved_args $opt"
        ;;
    -o)
        lt_output="$1"
        preserved_args="$preserved_args $opt"
	;;
    --tag=*)
        tag_seen=1
        preserved_args="$preserved_args $opt"
	;;
    *)
        preserved_args="$preserved_args $opt"
        ;;
      esac
done

case "$mode" in
compile)
    # shave will be called and print the actual CC/CXX/LINK line
    preserved_args="$preserved_args --shave-mode=$mode"
    pass_though=1
    ;;
link)
    preserved_args="$preserved_args --shave-mode=$mode"
    Q="  LINK  "
    ;;
*)
    # let's u
    # echo "*** libtool: Unimplemented mode: $mode, fill a bug report"
    ;;
esac

lt_unmangle "$lt_output"
output=$last_result

# automake does not add a --tag switch to its libtool invocation when
# assembling a .s file and rely on libtool to infer the right action based
# on the compiler name. As shave is using CC to hook a wrapper, libtool gets
# confused. Let's detect these cases and add a --tag=CC option.
tag=""
if test $tag_seen -eq 0 -a x"$mode" = xcompile; then
    tag="--tag=CC"
fi

if test -z $V; then
    if test $pass_though -eq 0; then
        echo "$Q$output"
    fi
    $LIBTOOL --silent $tag $preserved_args
else
    echo $LIBTOOL $tag $preserved_args
    $LIBTOOL $tag $preserved_args
fi