trunk/opengl-update-magellan/opengl-update-2.2.1

#!/bin/bash
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /root/magellan-cvs/src/opengl-update-magellan/opengl-update-2.2.1,v 1.1 2007-05-08 20:26:04 niro Exp $
# Author:  Martin Schlemmer <azarah@gentoo.org>
# Further modifications by Donnie Berkholz <spyderous@gentoo.org>
# Further modifications based off submissions to bug #54984 <cyfred@gentoo.org>
# Further modifications by Jeremy Huddleston <eradicator@gentoo.org>

. /etc/init.d/functions.sh

hasq() {
	local x

	local me=${1}
	shift
        
	for x in "${@}"; do
		if [[ "${x}" == "${me}" ]]; then
			return 0
		fi
	done
	return 1
}

check_user() {
	if [[ $(id -u) -ne 0 ]]; then
		eerror "${0}: Must be run as root."
		exit 1
	fi
}

check_version() {
	if ! portageq has_version / '>=x11-base/xorg-x11-6.8.0-r4'; then
		eerror "This version requires >=x11-base/xorg-x11-6.8.0-r4"
		exit 1
	fi
}

get_current_implem() {
	local implem
	if [[ -f ${ENV_D} ]]; then
		source ${ENV_D}
		if [[ -n "${OPENGL_PROFILE}" ]]; then
			implem="${OPENGL_PROFILE}"
		elif [[ -n "${LDPATH}" ]]; then
			implem="${LDPATH%%:*}"
			implem="${implem##*opengl/}"
			implem="${implem%/lib*}"
		fi
		unset LDPATH
		unset OPENGL_PROFILE
	fi

	echo ${implem}
}

get_implementations() {
	local implems
	for dir in ${PREFIX}/lib{,32,64}/opengl/*; do 
		if [[ -d "${dir}" && ${dir##*/} != "global" ]] && ! hasq ${dir##*/} ${implems}; then
			implems=${implems:+${implems} }${dir##*/}
		fi
	done
	echo ${implems}
}

print_version() {
	echo "opengl-update ${VERSION}"
}

print_usage() {
	# Get grammar right in message
	local IS_ARE IMPLEM_PLURAL
	if [[ $(echo ${AVAIL_IMPLEMS} | wc -w) -eq 1 ]]; then
		IS_ARE="is"
		IMPLEM_PLURAL=""
	else
		IS_ARE="are"
		IMPLEM_PLURAL="s"
	fi

	print_version

	cat << FOO
Usage: ${0##*/} [<options>] <GL implementation>
       Set the opengl implementation.
       Valid options:
       --use-old:          If an implementation is already set, use that one.
       --prefix=<val>:     Set the source prefix (default: /usr)
       --dst-prefix=<val>: Set the destination prefix (default: /usr)
       --impl-headers:     Use headers provided by this implementation to
                           override golbal ones provided by opengl-update.

Usage: ${0##*/} --get-implementation
       Print the current implementaion

Notes:
       --impl-headers was default in <opengl-update-2.2.

       This utility switches between OpenGL implementations.  There ${IS_ARE}
       $(echo ${AVAIL_IMPLEMS} | wc -w) available implementation${IMPLEM_PLURAL}: ${AVAIL_IMPLEMS}

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
}

parse_options() {
	local opt
	while [[ ${#} -gt 0 ]]; do
		opt=${1}
		shift
		case ${opt} in
			--use-old)
				if [[ -n "${ACTION}" ]]; then
					ACTION="error"
					eerror "Invalid usage."
				else
					if [[ -n "${CURRENT_GL_IMPLEM}" ]] && hasq ${CURRENT_GL_IMPLEM} ${AVAIL_IMPLEMS}; then
						ACTION="old-implementation"
					fi
				fi				
			;;
			--get-implementation)
				if [[ -n "${ACTION}" ]]; then
					ACTION="error"
					eerror "Invalid usage."
				else
					ACTION="get-implementation"
				fi				
			;;
			--prefix=*)
				PREFIX=${opt#*=}
				AVAIL_IMPLEMS=$(get_implementations)
			;;
			--dst-prefix=*)
				DST_PREFIX=${opt#*=}
			;;
			--impl-headers)
				USE_PROFILE_HEADERS="yes"
			;;
			--help|-h|-?)
				ACION="usage"
			;;
			--version)
				ACTION="version"
			;;
			*)
				if hasq ${opt} ${AVAIL_IMPLEMS}; then
					if [[ "${ACTION}" != "old-implementation" ]]; then
						if [[ -n "${ACTION}" ]]; then
							ACTION="error"
							eerror "Invalid usage."
						else
							ACTION="set-implementation"
							NEW_GL_IMPLEM="${opt}"
						fi
					fi				
				else
					eerror "Unrecognized option: ${opt}"
					ACTION="error"
				fi
			;;
		esac
	done
}

set-new-implementation() {
	local GL_IMPLEM=${1}
	local GL_LOCAL

	check_version
	check_user

	# Set a sane umask... bug #83115
	umask 022

	if ! hasq ${GL_IMPLEM} ${AVAIL_IMPLEMS}; then
		eerror "Invalid profile selected."
		exit 1
	fi

	ebegin "Switching to ${GL_IMPLEM} OpenGL interface"
		rm -f ${ENV_D} &> /dev/null

		LIBDIRS="lib32 lib lib64"
		for LIBDIR in ${LIBDIRS}; do
			# Special case handling of lib32 because it can be a symlink to
			# emul libs
			if [[ "${LIBDIR}" = "lib32" ]]; then
				[[ -d "${PREFIX}/${LIBDIR}/opengl" ]] || continue
			else
				[[ -d "${PREFIX}/${LIBDIR}/opengl" && ! -h "${PREFIX}/${LIBDIR}" ]] || continue
			fi

			# Fallback on xorg-x11 if we don't have this implementation for this LIBDIR.
			if [[ ! -d ${PREFIX}/${LIBDIR}/opengl/"${GL_IMPLEM}" ]]; then
				GL_LOCAL="xorg-x11"
			else
				GL_LOCAL="${GL_IMPLEM}"
			fi
		
			mkdir -p ${DST_PREFIX}/${LIBDIR}
			pushd ${DST_PREFIX}/${LIBDIR} &> /dev/null
				# First remove old symlinks
				for file in libGL{,core}.{a,so,la} ; do
					[[ -h ${file} ]] && rm -f ${file}
				done

				# Note that we don't do .so*, just .so on purpose.  The
				# loader knows to look in the profile dir, and the
				# linked just needs the .so
				for file in ${PREFIX}/${LIBDIR}/opengl/${GL_LOCAL}/lib/libGL{,core}.{so,a,la}; do
					[[ -f "${file}" ]] || continue
					[[ -f "${file##*/}" ]] && rm -f ${file##*/}

					# Fix libtool archives (#48297)
					if [[ "${file%.la}" != "${file}" ]]; then
						sed "s:${PREFIX}/[^/]*/opengl/[^/]*/lib:${DST_PREFIX}/${LIBDIR}:g" ${file} > ${file##*/}
					else
						ln -s ${file}
					fi
				done
			popd &> /dev/null

			if [[ -e "${PREFIX}/${LIBDIR}/${LIBDIR}/opengl/${GL_LOCAL}/lib/tls" ]]; then
				mkdir -p ${DST_PREFIX}/${LIBDIR}/tls
				pushd ${DST_PREFIX}/${LIBDIR}/tls &> /dev/null
					# First remove old symlinks
					for file in libGL{,core}.{a,so,la} ; do
						[[ -h ${file} ]] && rm -f ${file}
					done

					for file in ${PREFIX}/${LIBDIR}/opengl/${GL_LOCAL}/lib/tls/libGL{,core}.{so,a,la}; do
						[[ -f "${file}" ]] || continue
						[[ -f "${file##*/}" ]] && rm -f ${file##*/}

						# Fix libtool archives (#48297)
						if [ "${file%.la}" != "${file}" ]; then
							sed "s:${PREFIX}/[^/]*/opengl/[^/]*/lib:${DST_PREFIX}/${LIBDIR}:g" ${file} > ${file##*/}
						else
							ln -s ${file}
						fi
					done
				popd &> /dev/null
			fi

			if [[ -e "${PREFIX}/${LIBDIR}/opengl/${GL_LOCAL}/extensions" ]]; then
				mkdir -p ${DST_PREFIX}/${LIBDIR}/modules/extensions
				pushd ${DST_PREFIX}/${LIBDIR}/modules/extensions &> /dev/null
					# First remove old symlinks
					for file in libglx.so libglx.a; do
						[[ -h ${file} ]] && rm -f ${file}
					done

					for file in ${PREFIX}/${LIBDIR}/opengl/${GL_LOCAL}/extensions/*.{so,a,la}; do
						[[ -f "${file}" ]] || continue
						[[ -f "${file##*/}" ]] && rm -f ${file##*/}

						# Fix libtool archives (#48297)
						if [[ "${file%.la}" != "${file}" ]]; then
							sed "s:${PREFIX}/[^/]*/opengl/[^/]*/lib:${DST_PREFIX}/${LIBDIR}:g" ${file} > ${file##*/}
						else
							ln -s ${file}
						fi
					done
				popd &> /dev/null
			fi

			# Setup the includes
			mkdir -p ${DST_PREFIX}/include/GL
			pushd ${DST_PREFIX}/include/GL &> /dev/null
				for file in gl.h glx.h glxtokens.h glext.h glxext.h glxmd.h glxproto.h; do
					# IMPORTANT
					# It is preferable currently to use the standard glext.h file
					# however if an OpenGL provider must use a self produced glext.h
					# then it should be installed to ${GL_IMPLEM}/include and the user
					# can add the --impl-headers option to select it.

					if [[ ${USE_PROFILE_HEADERS} == "yes" ]] ; then
						# Check the profile first.
						if [[ -e ${PREFIX}/${LIBDIR}/opengl/${GL_IMPLEM}/include/${file} ]]; then
							[[ -f "${file}" || ( -L "${file}" && ! -e "${file}" ) ]] && rm -f ${file}
							ln -s ${PREFIX}/${LIBDIR}/opengl/${GL_IMPLEM}/include/${file}
						fi
					fi

					if [[ -e ${PREFIX}/${LIBDIR}/opengl/global/include/${file} ]]; then
						[[ -f "${file}" || ( -L "${file}" && ! -e "${file}" ) ]] && rm -f ${file}
						ln -s ${PREFIX}/${LIBDIR}/opengl/global/include/${file}
					elif [[ -e ${PREFIX}/${LIBDIR}/opengl/${GL_IMPLEM}/include/${file} ]]; then
						[[ -f "${file}" || ( -L "${file}" && ! -e "${file}" ) ]] && rm -f ${file}
						ln -s ${PREFIX}/${LIBDIR}/opengl/${GL_IMPLEM}/include/${file}
					elif [[ -e ${PREFIX}/${LIBDIR}/opengl/xorg-x11/include/${file} ]]; then
						[[ -f "${file}" || ( -L "${file}" && ! -e "${file}" ) ]] && rm -f ${file}
						ln -s ${PREFIX}/${LIBDIR}/opengl/xorg-x11/include/${file}
					fi
				done
			popd &> /dev/null

			# Setup the $LDPATH
			ldpath="${ldpath:+${ldpath}:}${PREFIX}/${LIBDIR}/opengl/${GL_LOCAL}/lib"

		done

		echo "LDPATH=\"${ldpath}\"" > ${ENV_D}
		echo "OPENGL_PROFILE=\"${GL_IMPLEM}\"" >> ${ENV_D}

		env-update

	eend 0
}

## START PROGRAM ##

ENV_D="/etc/env.d/03opengl"
NEW_GL_IMPLEM=""
ACTION=""
PREFIX="/usr"
DST_PREFIX="/usr"
AVAIL_IMPLEMS=$(get_implementations)
CURRENT_GL_IMPLEM=$(get_current_implem)
USE_PROFILE_HEADERS="no"
VERSION="2.2.1"

parse_options ${@}

case ${ACTION} in
	get-implementation)
		if [[ -n "${CURRENT_GL_IMPLEM}" ]]; then
			echo ${CURRENT_GL_IMPLEM}
			exit 0
		else
			exit 2
		fi
	;;
	old-implementation)
		set-new-implementation ${CURRENT_GL_IMPLEM}
		exit $?
	;;
	set-implementation)
		if [[ -n "${NEW_GL_IMPLEM}" ]]; then
			set-new-implementation ${NEW_GL_IMPLEM}
			exit $?
		else
			print_usage
			exit 1
		fi
	;;
	version)
		print_version
		exit 0
	;;
	usage)
		print_usage
		exit 0
	;;
	error)
		print_usage
		exit 1
	;;
	*)
		print_usage
		exit 1
	;;
esac
1	niro	153	#!/bin/bash
2			# Copyright 1999-2004 Gentoo Foundation
3			# Distributed under the terms of the GNU General Public License v2
4			# $Header: /root/magellan-cvs/src/opengl-update-magellan/opengl-update-2.2.1,v 1.1 2007-05-08 20:26:04 niro Exp $
5			# Author: Martin Schlemmer <azarah@gentoo.org>
6			# Further modifications by Donnie Berkholz <spyderous@gentoo.org>
7			# Further modifications based off submissions to bug #54984 <cyfred@gentoo.org>
8			# Further modifications by Jeremy Huddleston <eradicator@gentoo.org>
9
10			. /etc/init.d/functions.sh
11
12			hasq() {
13			local x
14
15			local me=${1}
16			shift
17
18			for x in "${@}"; do
19			if [[ "${x}" == "${me}" ]]; then
20			return 0
21			fi
22			done
23			return 1
24			}
25
26			check_user() {
27			if [[ $(id -u) -ne 0 ]]; then
28			eerror "${0}: Must be run as root."
29			exit 1
30			fi
31			}
32
33			check_version() {
34			if ! portageq has_version / '>=x11-base/xorg-x11-6.8.0-r4'; then
35			eerror "This version requires >=x11-base/xorg-x11-6.8.0-r4"
36			exit 1
37			fi
38			}
39
40			get_current_implem() {
41			local implem
42			if [[ -f ${ENV_D} ]]; then
43			source ${ENV_D}
44			if [[ -n "${OPENGL_PROFILE}" ]]; then
45			implem="${OPENGL_PROFILE}"
46			elif [[ -n "${LDPATH}" ]]; then
47			implem="${LDPATH%%:*}"
48			implem="${implem##*opengl/}"
49			implem="${implem%/lib*}"
50			fi
51			unset LDPATH
52			unset OPENGL_PROFILE
53			fi
54
55			echo ${implem}
56			}
57
58			get_implementations() {
59			local implems
60			for dir in ${PREFIX}/lib{,32,64}/opengl/*; do
61			if [[ -d "${dir}" && ${dir##/} != "global" ]] && ! hasq ${dir##/} ${implems}; then
62			implems=${implems:+${implems} }${dir##*/}
63			fi
64			done
65			echo ${implems}
66			}
67
68			print_version() {
69			echo "opengl-update ${VERSION}"
70			}
71
72			print_usage() {
73			# Get grammar right in message
74			local IS_ARE IMPLEM_PLURAL
75			if [[ $(echo ${AVAIL_IMPLEMS} \| wc -w) -eq 1 ]]; then
76			IS_ARE="is"
77			IMPLEM_PLURAL=""
78			else
79			IS_ARE="are"
80			IMPLEM_PLURAL="s"
81			fi
82
83			print_version
84
85			cat << FOO
86			Usage: ${0##*/} [<options>] <GL implementation>
87			Set the opengl implementation.
88			Valid options:
89			--use-old: If an implementation is already set, use that one.
90			--prefix=<val>: Set the source prefix (default: /usr)
91			--dst-prefix=<val>: Set the destination prefix (default: /usr)
92			--impl-headers: Use headers provided by this implementation to
93			override golbal ones provided by opengl-update.
94
95			Usage: ${0##*/} --get-implementation
96			Print the current implementaion
97
98			Notes:
99			--impl-headers was default in <opengl-update-2.2.
100
101			This utility switches between OpenGL implementations. There ${IS_ARE}
102			$(echo ${AVAIL_IMPLEMS} \| wc -w) available implementation${IMPLEM_PLURAL}: ${AVAIL_IMPLEMS}
103
104			Examples:
105			${0##*/} xorg-x11
106			This will setup things to use libGL.so from X.org.
107
108			${0##*/} nvidia
109			This will setup things to use libGL.so from the nVidia drivers.
110
111			FOO
112			exit 1
113			}
114
115			parse_options() {
116			local opt
117			while [[ ${#} -gt 0 ]]; do
118			opt=${1}
119			shift
120			case ${opt} in
121			--use-old)
122			if [[ -n "${ACTION}" ]]; then
123			ACTION="error"
124			eerror "Invalid usage."
125			else
126			if [[ -n "${CURRENT_GL_IMPLEM}" ]] && hasq ${CURRENT_GL_IMPLEM} ${AVAIL_IMPLEMS}; then
127			ACTION="old-implementation"
128			fi
129			fi
130			;;
131			--get-implementation)
132			if [[ -n "${ACTION}" ]]; then
133			ACTION="error"
134			eerror "Invalid usage."
135			else
136			ACTION="get-implementation"
137			fi
138			;;
139			--prefix=*)
140			PREFIX=${opt#*=}
141			AVAIL_IMPLEMS=$(get_implementations)
142			;;
143			--dst-prefix=*)
144			DST_PREFIX=${opt#*=}
145			;;
146			--impl-headers)
147			USE_PROFILE_HEADERS="yes"
148			;;
149			--help\|-h\|-?)
150			ACION="usage"
151			;;
152			--version)
153			ACTION="version"
154			;;
155			*)
156			if hasq ${opt} ${AVAIL_IMPLEMS}; then
157			if [[ "${ACTION}" != "old-implementation" ]]; then
158			if [[ -n "${ACTION}" ]]; then
159			ACTION="error"
160			eerror "Invalid usage."
161			else
162			ACTION="set-implementation"
163			NEW_GL_IMPLEM="${opt}"
164			fi
165			fi
166			else
167			eerror "Unrecognized option: ${opt}"
168			ACTION="error"
169			fi
170			;;
171			esac
172			done
173			}
174
175			set-new-implementation() {
176			local GL_IMPLEM=${1}
177			local GL_LOCAL
178
179			check_version
180			check_user
181
182			# Set a sane umask... bug #83115
183			umask 022
184
185			if ! hasq ${GL_IMPLEM} ${AVAIL_IMPLEMS}; then
186			eerror "Invalid profile selected."
187			exit 1
188			fi
189
190			ebegin "Switching to ${GL_IMPLEM} OpenGL interface"
191			rm -f ${ENV_D} &> /dev/null
192
193			LIBDIRS="lib32 lib lib64"
194			for LIBDIR in ${LIBDIRS}; do
195			# Special case handling of lib32 because it can be a symlink to
196			# emul libs
197			if [[ "${LIBDIR}" = "lib32" ]]; then
198			[[ -d "${PREFIX}/${LIBDIR}/opengl" ]] \|\| continue
199			else
200			[[ -d "${PREFIX}/${LIBDIR}/opengl" && ! -h "${PREFIX}/${LIBDIR}" ]] \|\| continue
201			fi
202
203			# Fallback on xorg-x11 if we don't have this implementation for this LIBDIR.
204			if [[ ! -d ${PREFIX}/${LIBDIR}/opengl/"${GL_IMPLEM}" ]]; then
205			GL_LOCAL="xorg-x11"
206			else
207			GL_LOCAL="${GL_IMPLEM}"
208			fi
209
210			mkdir -p ${DST_PREFIX}/${LIBDIR}
211			pushd ${DST_PREFIX}/${LIBDIR} &> /dev/null
212			# First remove old symlinks
213			for file in libGL{,core}.{a,so,la} ; do
214			[[ -h ${file} ]] && rm -f ${file}
215			done
216
217			# Note that we don't do .so*, just .so on purpose. The
218			# loader knows to look in the profile dir, and the
219			# linked just needs the .so
220			for file in ${PREFIX}/${LIBDIR}/opengl/${GL_LOCAL}/lib/libGL{,core}.{so,a,la}; do
221			[[ -f "${file}" ]] \|\| continue
222			[[ -f "${file##/}" ]] && rm -f ${file##/}
223
224			# Fix libtool archives (#48297)
225			if [[ "${file%.la}" != "${file}" ]]; then
226			sed "s:${PREFIX}/[^/]/opengl/[^/]/lib:${DST_PREFIX}/${LIBDIR}:g" ${file} > ${file##*/}
227			else
228			ln -s ${file}
229			fi
230			done
231			popd &> /dev/null
232
233			if [[ -e "${PREFIX}/${LIBDIR}/${LIBDIR}/opengl/${GL_LOCAL}/lib/tls" ]]; then
234			mkdir -p ${DST_PREFIX}/${LIBDIR}/tls
235			pushd ${DST_PREFIX}/${LIBDIR}/tls &> /dev/null
236			# First remove old symlinks
237			for file in libGL{,core}.{a,so,la} ; do
238			[[ -h ${file} ]] && rm -f ${file}
239			done
240
241			for file in ${PREFIX}/${LIBDIR}/opengl/${GL_LOCAL}/lib/tls/libGL{,core}.{so,a,la}; do
242			[[ -f "${file}" ]] \|\| continue
243			[[ -f "${file##/}" ]] && rm -f ${file##/}
244
245			# Fix libtool archives (#48297)
246			if [ "${file%.la}" != "${file}" ]; then
247			sed "s:${PREFIX}/[^/]/opengl/[^/]/lib:${DST_PREFIX}/${LIBDIR}:g" ${file} > ${file##*/}
248			else
249			ln -s ${file}
250			fi
251			done
252			popd &> /dev/null
253			fi
254
255			if [[ -e "${PREFIX}/${LIBDIR}/opengl/${GL_LOCAL}/extensions" ]]; then
256			mkdir -p ${DST_PREFIX}/${LIBDIR}/modules/extensions
257			pushd ${DST_PREFIX}/${LIBDIR}/modules/extensions &> /dev/null
258			# First remove old symlinks
259			for file in libglx.so libglx.a; do
260			[[ -h ${file} ]] && rm -f ${file}
261			done
262
263			for file in ${PREFIX}/${LIBDIR}/opengl/${GL_LOCAL}/extensions/*.{so,a,la}; do
264			[[ -f "${file}" ]] \|\| continue
265			[[ -f "${file##/}" ]] && rm -f ${file##/}
266
267			# Fix libtool archives (#48297)
268			if [[ "${file%.la}" != "${file}" ]]; then
269			sed "s:${PREFIX}/[^/]/opengl/[^/]/lib:${DST_PREFIX}/${LIBDIR}:g" ${file} > ${file##*/}
270			else
271			ln -s ${file}
272			fi
273			done
274			popd &> /dev/null
275			fi
276
277			# Setup the includes
278			mkdir -p ${DST_PREFIX}/include/GL
279			pushd ${DST_PREFIX}/include/GL &> /dev/null
280			for file in gl.h glx.h glxtokens.h glext.h glxext.h glxmd.h glxproto.h; do
281			# IMPORTANT
282			# It is preferable currently to use the standard glext.h file
283			# however if an OpenGL provider must use a self produced glext.h
284			# then it should be installed to ${GL_IMPLEM}/include and the user
285			# can add the --impl-headers option to select it.
286
287			if [[ ${USE_PROFILE_HEADERS} == "yes" ]] ; then
288			# Check the profile first.
289			if [[ -e ${PREFIX}/${LIBDIR}/opengl/${GL_IMPLEM}/include/${file} ]]; then
290			[[ -f "${file}" \|\| ( -L "${file}" && ! -e "${file}" ) ]] && rm -f ${file}
291			ln -s ${PREFIX}/${LIBDIR}/opengl/${GL_IMPLEM}/include/${file}
292			fi
293			fi
294
295			if [[ -e ${PREFIX}/${LIBDIR}/opengl/global/include/${file} ]]; then
296			[[ -f "${file}" \|\| ( -L "${file}" && ! -e "${file}" ) ]] && rm -f ${file}
297			ln -s ${PREFIX}/${LIBDIR}/opengl/global/include/${file}
298			elif [[ -e ${PREFIX}/${LIBDIR}/opengl/${GL_IMPLEM}/include/${file} ]]; then
299			[[ -f "${file}" \|\| ( -L "${file}" && ! -e "${file}" ) ]] && rm -f ${file}
300			ln -s ${PREFIX}/${LIBDIR}/opengl/${GL_IMPLEM}/include/${file}
301			elif [[ -e ${PREFIX}/${LIBDIR}/opengl/xorg-x11/include/${file} ]]; then
302			[[ -f "${file}" \|\| ( -L "${file}" && ! -e "${file}" ) ]] && rm -f ${file}
303			ln -s ${PREFIX}/${LIBDIR}/opengl/xorg-x11/include/${file}
304			fi
305			done
306			popd &> /dev/null
307
308			# Setup the $LDPATH
309			ldpath="${ldpath:+${ldpath}:}${PREFIX}/${LIBDIR}/opengl/${GL_LOCAL}/lib"
310
311			done
312
313			echo "LDPATH=\"${ldpath}\"" > ${ENV_D}
314			echo "OPENGL_PROFILE=\"${GL_IMPLEM}\"" >> ${ENV_D}
315
316			env-update
317
318			eend 0
319			}
320
321			## START PROGRAM ##
322
323			ENV_D="/etc/env.d/03opengl"
324			NEW_GL_IMPLEM=""
325			ACTION=""
326			PREFIX="/usr"
327			DST_PREFIX="/usr"
328			AVAIL_IMPLEMS=$(get_implementations)
329			CURRENT_GL_IMPLEM=$(get_current_implem)
330			USE_PROFILE_HEADERS="no"
331			VERSION="2.2.1"
332
333			parse_options ${@}
334
335			case ${ACTION} in
336			get-implementation)
337			if [[ -n "${CURRENT_GL_IMPLEM}" ]]; then
338			echo ${CURRENT_GL_IMPLEM}
339			exit 0
340			else
341			exit 2
342			fi
343			;;
344			old-implementation)
345			set-new-implementation ${CURRENT_GL_IMPLEM}
346			exit $?
347			;;
348			set-implementation)
349			if [[ -n "${NEW_GL_IMPLEM}" ]]; then
350			set-new-implementation ${NEW_GL_IMPLEM}
351			exit $?
352			else
353			print_usage
354			exit 1
355			fi
356			;;
357			version)
358			print_version
359			exit 0
360			;;
361			usage)
362			print_usage
363			exit 0
364			;;
365			error)
366			print_usage
367			exit 1
368			;;
369			*)
370			print_usage
371			exit 1
372			;;
373			esac