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#!/bin/bash
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/x11-base/opengl-update/files/opengl-update-1.7.1,v 1.2 2004/07/15 00:27:54 agriffis Exp $
# Author: Martin Schlemmer <azarah@gentoo.org>
# Further modifications by Donnie Berkholz <spyderous@gentoo.org>
. /etc/init.d/functions.sh
if [ `id -u` -ne 0 ]
then
eerror "${0}: must be root."
exit 1
fi
usage() {
# In addition to the below function, there are two extra uses for this.
#
# They aren't in the printed help message because they're intended
# for developer use.
# 1) --use-old $NEW_IMPLEM will switch to the new implementation only if
# no old setup existed (i.e., X has never been installed)
# 2) --get-implementation will return the implementation
cat << FOO
usage: ${0##*/} <GL implementation>
note:
This utility switches between OpenGL implementations. Currently there
are five supported implementations, "xorg-x11" "xfree" "nvidia" "ati"
and "mtx", the implementations for X.org, XFree86, nVidia, ATi
and Matrox drivers respectively.
examples:
${0##*/} xorg-x11
This will setup things to use libGL.so from X.org.
${0##*/} nvidia
This will setup things to use libGL.so from the nVidia drivers.
FOO
exit 1
}
if [ "$#" -ne 1 -a "$#" -ne 2 ] || \
[ "$#" -eq 2 -a "$1" != "--use-old" ]
then
usage
fi
GL_IMPLEM=""
# Discover GL implementation if it exists
get_implem() {
if [ -f /etc/env.d/09opengl ]
then
source /etc/env.d/09opengl
if [ -n "${LDPATH}" ]
then
GL_IMPLEM="${LDPATH/\/usr\/lib\/opengl\/}"
GL_IMPLEM="${GL_IMPLEM/\/lib}"
unset LDPATH
fi
fi
}
# Return current GL implementation
if [ "$1" = "--get-implementation" ]
then
get_implem
if [ -n "${GL_IMPLEM}" ]
then
echo "${GL_IMPLEM}"
fi
if [ -z "${GL_IMPLEM}" ]
then
exit 2
fi
exit 1
fi
# Only use specified implementation if it is not already selected.
if [ "$1" = "--use-old" ]
then
shift
get_implem
if [ -z "${GL_IMPLEM}" ]
then
GL_IMPLEM="$1"
fi
else
GL_IMPLEM="$1"
fi
if [ ! -d /usr/lib/opengl/${GL_IMPLEM} ]
then
usage
else
ebegin "Switching to ${GL_IMPLEM} OpenGL interface"
#setup the $LDPATH
echo "LDPATH=/usr/lib/opengl/${GL_IMPLEM}/lib" >/etc/env.d/09opengl
/usr/sbin/env-update &>/dev/null
#setup the /usr/lib/libGL.so symlink
if [ -e /usr/lib/libGL.so ]
then
rm -f /usr/lib/libGL.so
fi
if [ -e /usr/lib/libGL.so.1 ]
then
rm -f /usr/lib/libGL.so.1
fi
realname="$(readlink /usr/lib/opengl/${GL_IMPLEM}/lib/libGL.so)"
ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/${realname} \
/usr/lib/libGL.so
ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/${realname} \
/usr/lib/libGL.so.1
#setup the /usr/X11R6/lib/libMesaGL.so symlink
if [ -e /usr/X11R6/lib/libMesaGL.so ]
then
rm -f /usr/X11R6/lib/libMesaGL.so
fi
realname="$(readlink /usr/lib/opengl/${GL_IMPLEM}/lib/libGL.so)"
ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/${realname} \
/usr/X11R6/lib/libMesaGL.so
#setup the /usr/lib/libGLcore.so symlink
if [ -e /usr/lib/libGLcore.so ]
then
rm -f /usr/lib/libGLcore.so
fi
if [ -e /usr/lib/libGLcore.so.1 ]
then
rm -f /usr/lib/libGLcore.so.1
fi
if [ -e /usr/lib/opengl/${GL_IMPLEM}/lib/libGLcore.so ]
then
realname="$(readlink /usr/lib/opengl/${GL_IMPLEM}/lib/libGLcore.so)"
ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/${realname} \
/usr/lib/libGLcore.so
ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/${realname} \
/usr/lib/libGLcore.so.1
fi
#setup the /usr/lib/libGL.la symlink
if [ -e /usr/lib/libGL.la ]
then
rm -f /usr/lib/libGL.la
fi
if [ -e /usr/lib/opengl/${GL_IMPLEM}/lib/libGL.la ]
then
ln -sf /usr/lib/opengl/${GL_IMPLEM}/lib/libGL.la \
/usr/lib/libGL.la
fi
#fix libtool archives (#48297)
CURDIR="$(pwd)"
cd /usr/lib
sed -i 's:/usr/lib/opengl/[^/]*/lib/libGL.la:/usr/lib/libGL.la:' \
`grep -l /usr/lib/opengl *.la`
cd ${CURDIR}
#setup the /usr/X11R6/lib/modules/extensions/libglx.so symlink
if [ -e /usr/X11R6/lib/modules/extensions/libglx.so ]
then
rm -f /usr/X11R6/lib/modules/extensions/libglx.so
fi
if [ -e /usr/lib/opengl/${GL_IMPLEM}/extensions/libglx.so ]
then
ln -sf /usr/lib/opengl/${GL_IMPLEM}/extensions/libglx.so \
/usr/X11R6/lib/modules/extensions/libglx.so
fi
#setup the /usr/X11R6/lib/modules/extensions/libglx.a symlink
if [ -e /usr/X11R6/lib/modules/extensions/libglx.a ]
then
rm -f /usr/X11R6/lib/modules/extensions/libglx.a
fi
if [ -e /usr/lib/opengl/${GL_IMPLEM}/extensions/libglx.a ]
then
ln -sf /usr/lib/opengl/${GL_IMPLEM}/extensions/libglx.a \
/usr/X11R6/lib/modules/extensions/libglx.a
fi
#setup the includes
for x in gl.h glx.h glxtokens.h
do
if [ -e /usr/X11R6/include/GL/${x} ]
then
rm -f /usr/X11R6/include/GL/${x}
fi
ln -sf /usr/lib/opengl/${GL_IMPLEM}/include/${x} \
/usr/X11R6/include/GL/${x}
done
eend 0
fi
# vim:ts=4
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