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#!/bin/bash -
# Copyright (C) 2010 Red Hat Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
# Written by Richard W.M. Jones <rjones@redhat.com>
#
# Take a dynamically linked ELF binary and relink it, maximizing the
# use of static libraries.
#
# Example:
# binary foo
# ---> dynamically links to libbar.so.0
# ---> dynamically links to libzab.so.3
# If libbar.a is available, but there is no libzab.a, then we would
# end up with:
# binary foo.static with libbar.a statically inside it
# ---> still dynamically linking with libzab.so.3
#
# We need to have access to the original link command. This script
# works by post-processing it to find the '-lbar' arguments, which are
# replaced sometimes by direct static library names.
#
# Therefore to use this, you have to add this rule to your
# Makefile.am:
#
# foo.static$(EXEEXT): $(foo_OBJECTS) $(foo_DEPENDENCIES)
# relink-static.sh \
# $(foo_LINK) $(foo_OBJECTS) -static $(foo_LDADD) $(foo_LIBS)
declare -a args
i=0
for arg; do
case "$arg" in
-l*) # get just the library name (eg. "xml2")
lib=${arg:2}
# does a static version exist?
for d in /usr/local/lib{64,} /usr/lib{64,} /lib{64,}; do
path="$d/lib$lib.a"
if [ -f "$path" ]; then
arg="$path"
break
fi
done
;;
*.la) # hack around libtool mess
d=$(dirname "$arg")
b=$(basename "$arg")
b=${b:0:${#b}-3}
if [ -f "$d/.libs/$b.a" ]; then
arg="$d/.libs/$b.a"
fi
;;
*) ;;
esac
args[$i]="$arg"
i=$(($i+1))
done
# Run the final command.
echo "${args[@]}"
"${args[@]}"
|
