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Revision 1.26 - (show annotations) (download)
Tue Aug 24 00:10:08 2004 UTC (10 years ago) by mr_bones_
Branch: MAIN
Changes since 1.25: +4 -2 lines
Add note explaining where gnuconfig_update should be called from.

1 # Copyright 1999-2004 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/gnuconfig.eclass,v 1.25 2004/08/07 04:26:23 agriffis Exp $
4 #
5 # Author: Will Woods <wwoods@gentoo.org>
6 #
7 # This eclass is used to automatically update files that typically come with
8 # automake to the newest version available on the system. The most common use
9 # of this is to update config.guess and config.sub when configure dies from
10 # misguessing your canonical system name (CHOST). It can also be used to update
11 # other files that come with automake, e.g. depcomp, mkinstalldirs, etc.
12 #
13 # usage: gnuconfig_update [file1 file2 ...]
14 # if called without arguments, config.guess and config.sub will be updated.
15 # All files in the source tree ($S) with the given name(s) will be replaced
16 # with the newest available versions chosen from the list of locations in
17 # gnuconfig_findnewest(), below.
18 #
19 # gnuconfig_update should generally be called from src_unpack()
20
21 ECLASS=gnuconfig
22 INHERITED="$INHERITED $ECLASS"
23
24 DEPEND="sys-devel/gnuconfig"
25
26 DESCRIPTION="Based on the ${ECLASS} eclass"
27
28 # Wrapper function for gnuconfig_do_update. If no arguments are given, update
29 # config.sub and config.guess (old default behavior), otherwise update the
30 # named files.
31 gnuconfig_update() {
32 local startdir # declared here ... used in gnuconfig_do_update
33
34 if [[ $1 == /* ]]; then
35 startdir=$1
36 shift
37 else
38 startdir=${S}
39 fi
40
41 if [ $# -gt 0 ] ; then
42 gnuconfig_do_update "$@"
43 else
44 gnuconfig_do_update config.sub config.guess
45 fi
46
47 return $?
48 }
49
50 # Copy the newest available version of specified files over any old ones in the
51 # source dir. This function shouldn't be called directly - use gnuconfig_update
52 #
53 # Note that since bash using dynamic scoping, startdir is available here from
54 # the gnuconfig_update function
55 gnuconfig_do_update() {
56 local configsubs_dir target targetlist file
57
58 [ $# -eq 0 ] && die "do not call gnuconfig_do_update; use gnuconfig_update"
59
60 configsubs_dir="$(gnuconfig_findnewest)"
61 einfo "Using GNU config files from ${configsubs_dir}"
62 for file in "$@" ; do
63 if [ ! -r ${configsubs_dir}/${file} ] ; then
64 eerror "Can't read ${configsubs_dir}/${file}, skipping.."
65 continue
66 fi
67 targetlist=`find "${startdir}" -name "${file}"`
68 if [ -n "$targetlist" ] ; then
69 for target in $targetlist; do
70 einfo " Updating ${target/$startdir\//}"
71 cp -f ${configsubs_dir}/${file} "${target}"
72 eend $?
73 done
74 else
75 ewarn " No ${file} found in ${startdir}, skipping.."
76 fi
77 done
78
79 return 0
80 }
81
82 # this searches the standard locations for the newest config.{sub|guess}, and
83 # returns the directory where they can be found.
84 gnuconfig_findnewest() {
85 local locations="/usr/share/gnuconfig/config.sub \
86 /usr/share/automake-1.8/config.sub \
87 /usr/share/automake-1.7/config.sub \
88 /usr/share/automake-1.6/config.sub \
89 /usr/share/automake-1.5/config.sub \
90 /usr/share/automake-1.4/config.sub"
91 local lt_location="/usr/share/libtool/config.sub"
92
93 [ -f "${lt_location}" ] && locations="${locations} ${lt_location}"
94
95 grep -s '^timestamp' ${locations} | sort -n -t\' -k2 | tail -n 1 | sed 's,/config.sub:.*$,,'
96 }

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