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Autoconf Macro: ac_set_versionlevel
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<h1>
ac_set_versionlevel
</h1>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AC_SET_VERSIONLEVEL(VARNAME [,VERSION])</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
If the VERSION is ommitted, shellvar $VERSION is used as defined by
AM_INIT_AUTOMAKE's second argument.
</p>
<p>
The versionlevel is the numeric representation of the given version string,
thereby assuming the inputversion is a string with (maximal) three decimal
numbers seperated by "."-dots. A "-patch" adds a percent.
</p>
<p>
Typical usage:
</p>
<pre>
AM_INIT_AUTOMAKE(mypkg,4.12.3)
AC_SET_VERSIONLEVEL(MYPKG_VERSION)
AC_DEFINE_UNQUOTED(MYPKG_VERSION, $MYPKG_VERSION, [package version])
</pre>
<p>
The version code has three digits per part which I feel is the most natural
encoding - it makes it easier to be printf'd anyway.
</p>
<p>
Examples:
</p>
<pre>
3.0-beta1 3000001
3.1 3010000
3.11 3110000
3.11-dirpatch 3111000
3.11-patch6 3110006
2.2.18 2020018
2.0.112 2000112
2.4.2 2040002
2.4.2-pre 2040003
2.4.2-pre5 2040003
5.0-build125 5000125
5.0 5000000
0.30.17 30017
</pre>
</div>
<h2>
Author
</h2>
<p class="indent">
Guido U. Draheim <guidod@gmx.de>
</p>
<h2>
Last Modified
</h2>
<p class="indent">
2006-10-13
</p>
<h2>
M4 Source Code
</h2>
<div class="indent">
<pre class="m4source">
AC_DEFUN([AC_SET_VERSIONLEVEL],
[dnl
m4_pushdef(LVL, $1_LEVEL)
m4_pushdef(MJR, $1_MAJOR)
m4_pushdef(MNR, $1_MINOR)
m4_pushdef(MCR, $1_MICRO)
LVL=`echo ifelse($2, , $VERSION, $2) | sed -e 's:[[A-Z-]]*:.:g' -e 's:[[^0-9.]]::g' -e 's:[[.]]*:.:g' -e 's:^[[.]]*::'`
AC_MSG_CHECKING( $1 versionlevel $LVL)
case $LVL in
*.*.*.|*.*.*.*|*.*.*) :
MJR=`echo $LVL`
MNR=`echo $MJR | sed -e 's/[[^.]]*[[.]]//'`
MCR=`echo $MNR | sed -e 's/[[^.]]*[[.]]//'`
MJR=`echo $MJR | sed -e 's/[[.]].*//'`
MNR=`echo $MNR | sed -e 's/[[.]].*//'`
MCR=`echo $MCR | sed -e 's/[[.]].*//'`
;;
*.*.|*.*) :
MJR=`echo $LVL`
MNR=`echo $MJR | sed -e 's/[[^.]]*[[.]]//'`
MJR=`echo $MJR | sed -e 's/[[.]].*//'`
MNR=`echo $MNR | sed -e 's/[[.]].*//'`
MCR=0
;;
*.) :
MJR=0
MNR=`echo $LVL`
MNR=`echo $MNR | sed -e 's/[[.]].*//'`
MCR=0
;;
esac
# we trust sed greedy-match backtracking to extract the last three digits from each part, forming a nine-digit
$1=`echo 000$MJR.000$MNR.000$MCR | sed -e 's:\\(...\\)[[.]][[^.]]*\\((...\\))[[.]][[^.*]]\\((...\\)):\\1\\2\\3 -e 's:^0*::''
AC_MSG_RESULT($[$1] ($MJR,$MNR,$MCR)
dnl AC_DEFINE_UNQUOTED( $1, $[$1], ifelse( $3, , $PACKAGE versionlevel, $3))
m4_popdef(MCR)
m4_popdef(MNR)
m4_popdef(MJR)
m4_popdef(LVL)
])
</pre>
</div>
<h2>
License
</h2>
<div class="indent">
<span style="white-space:nowrap;">Copyright © 2006 Guido U. Draheim
<guidod@gmx.de></span>
<p>
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.
</p>
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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.
</p>
<p>
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., 59
Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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