mdw@git.distorted.org.uk Git - runlisp/blob - m4/mdw-libtool-version-info.m4

   1 dnl -*-autoconf-*-
   2
   3 ### SYNOPSIS
   4 ###
   5 ###   mdw_LIBTOOL_VERSION_INFO
   6 ###
   7 ### DESCRIPTION
   8 ###
   9 ###   Decodes the `PACKAGE_VERSION' variable as a `libtool' version-info
  10 ###   string, available as the `@LIBTOOL_VERSION_INFO@' substitution.
  11 ###   Strictly speaking, this is very naughty.
  12 ###
  13 ### LICENSE
  14 ###
  15 ###   Copyright (c) 2008 Mark Wooding <mdw@distorted.org.uk>
  16 ###
  17 ###   This program is free software: you can redistribute it and/or modify it
  18 ###   under the terms of the GNU General Public License as published by the
  19 ###   Free Software Foundation, either version 2 of the License, or (at your
  20 ###   option) any later version.
  21 ###
  22 ###   This program is distributed in the hope that it will be useful, but
  23 ###   WITHOUT ANY WARRANTY; without even the implied warranty of
  24 ###   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  25 ###   General Public License for more details.
  26 ###
  27 ###   You should have received a copy of the GNU General Public License along
  28 ###   with this program. If not, see <http://www.gnu.org/licenses/>.
  29 ###
  30 ###   As a special exception, the respective Autoconf Macro's copyright owner
  31 ###   gives unlimited permission to copy, distribute and modify the configure
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  42
  43 # serial 1
  44 AC_DEFUN([mdw_LIBTOOL_VERSION_INFO],
  45 [set -- $(echo $PACKAGE_VERSION |
  46             sed 's:[^\([0-9][0-9]*\)\.\([0-9][0-9]*\)\.\([0-9][0-9]*\).*$]:\1 \2 \3:')
  47 LIBTOOL_VERSION_INFO="$(expr $[]1 + $[]2):$[]3:$[]2"
  48 AC_SUBST([LIBTOOL_VERSION_INFO])])