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#!/bin/bash
# Copyright 1999-2002 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License, v2 or later
# Author: Martin Schlemmer <azarah@gentoo.org>
# $Header: /var/cvsroot/gentoo-x86/sys-devel/gcc-config/files/gcc-config-1.1,v 1.1 2002/11/10 11:58:19 azarah Exp $
source /etc/init.d/functions.sh || {
echo "$0: Could not source /etc/init.d/functions.sh!"
exit 1
}
if [ "$(id -u)" -ne 0 ]
then
eerror "$0: Must be root."
exit 1
fi
usage() {
cat << "USAGE_END"
Usage: gcc-config [Option] <CHOST>-<gcc version>
Options:
[--use-old]
[--get-current-profile]
[--get-bin-path]
[--get-lib-path]
[--get-stdcxx-incdir]
USAGE_END
exit 1
}
if [ "$#" -lt 1 ]
then
usage
fi
find_path() {
[ -z "$1" ] && return 0
for x in /bin /sbin /usr/bin /usr/sbin
do
if [ -x ${x}/$1 -a -r ${x}/$1 ]
then
echo "${x}/$1"
break
fi
done
}
GCC_COMP=""
switch_profile() {
ebegin "Switching to ${GCC_COMP} compiler"
# Sourcing /etc/env.d/gcc/${GCC_COMP} is going to mess up
# PATH among things...
CP="$(find_path cp)"
RM="$(find_path rm)"
MV="$(find_path mv)"
LN="$(find_path ln)"
GREP="$(find_path grep)"
ENV_UPDATE="$(find_path env-update)"
source /etc/env.d/gcc/${GCC_COMP}
${GREP} -v 'STDCXX_INCDIR' /etc/env.d/gcc/${GCC_COMP} > /etc/env.d/05gcc
if [ -d /usr/include/${STDCXX_INCDIR} -a ! -L /usr/include/${STDCXX_INCDIR} ]
then
${MV} /usr/include/${STDCXX_INCDIR} /usr/include/${STDCXX_INCDIR}.orig
elif [ -L /usr/include/${STDCXX_INCDIR} ]
then
${RM} -f /usr/include/${STDCXX_INCDIR}
fi
${LN} -snf ..${LDPATH/\/usr}/include/${STDCXX_INCDIR} /usr/include/${STDCXX_INCDIR}
[ -L /lib/cpp -o -f /lib/cpp ] && ${RM} -f /lib/cpp
${LN} -snf ..${PATH}/cpp /lib/cpp
[ -L /usr/bin/cc -o -f /usr/bin/cc ] && ${RM} -f /usr/bin/cc
${LN} -snf ../..${PATH}/gcc /usr/bin/cc
echo "CURRENT=${GCC_COMP}" > /etc/env.d/gcc/config
source /etc/profile
${ENV_UPDATE} &> /dev/null
eend 0
return 0
}
get_current_profile() {
if [ ! -f /etc/env.d/gcc/config ]
then
eerror "$0: No gcc profile is active!"
return 1
fi
source /etc/env.d/gcc/config
if [ -z "${CURRENT}" ]
then
eerror "$0: No gcc profile is active!"
return 1
fi
echo "${CURRENT}"
return 0
}
get_bin_path() {
source /etc/env.d/gcc/${GCC_COMP}
echo "${PATH}"
return 0
}
get_lib_path() {
source /etc/env.d/gcc/${GCC_COMP}
echo "${LDPATH}"
return 0
}
get_stdcxx_incdir() {
source /etc/env.d/gcc/${GCC_COMP}
echo "${LDPATH}/include/${STDCXX_INCDIR}"
return 0
}
NEED_ACTION="yes"
DOIT="switch_profile"
for x in $*
do
case ${x} in
# Only use specified compiler if one is not already selected.
--use-old)
if get_current_profile &> /dev/null
then
GCC_COMP="$(get_current_profile)"
fi
;;
--get-current-profile)
if [ "${NEED_ACTION}" = "yes" ]
then
NEED_ACTION="no"
DOIT="get_current_profile"
fi
;;
--get-bin-path)
if [ "${NEED_ACTION}" = "yes" ]
then
NEED_ACTION="no"
DOIT="get_bin_path"
fi
;;
--get-lib-path)
if [ "${NEED_ACTION}" = "yes" ]
then
NEED_ACTION="no"
DOIT="get_lib_path"
fi
;;
--get-stdcxx-incdir)
if [ "${NEED_ACTION}" = "yes" ]
then
NEED_ACTION="no"
DOIT="get_stdcxx_incdir"
fi
;;
*)
if [ -z "${GCC_COMP}" ]
then
GCC_COMP="${x}"
fi
;;
esac
done
if [ "${DOIT}" = "switch_profile" -a -z "${GCC_COMP}" ]
then
usage
fi
if [ -z "${GCC_COMP}" ]
then
if get_current_profile &> /dev/null
then
GCC_COMP="$(get_current_profile)"
else
usage
fi
fi
if [ ! -d /usr/lib/gcc-lib/${GCC_COMP%-*}/${GCC_COMP##*-} -o \
! -f /etc/env.d/gcc/${GCC_COMP} ]
then
usage
fi
eval ${DOIT}
# vim:ts=4
|
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