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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
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<title>
Autoconf Macro: ax_set_version_info
</title>
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<hr>
<h1>
ax_set_version_info
</h1>
<h2>
Synopsis
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AX_SET_VERSION_INFO [(VERSION [,PREFIX])]</code>
</p>
<h2>
Description
</h2>
<div class="indent">
<p>
Defaults:
</p>
<pre>
$1 = $PACKAGE_VERSION
$2 = <none>
</pre>
<p>
Check the $VERSION number and cut the two last digit-sequences off which
will form a -version-info in a @VERSION_INFO@ ac_subst while the rest is
going to the -release name in a @RELEASE_INFO@ ac_subst.
</p>
<p>
you should keep these two seperate - the release-name may contain
alpha-characters and can be modified later with extra release-hints e.g.
RELEASE_INFO="$RELEASE_INFO-debug" for a debug version of your lib. The
$VERSION_INFO however should not be touched.
</p>
<p>
example: a VERSION="2.4.18" will be transformed into
</p>
<pre>
RELEASE_INFO = -release 2
VERSION_INFO = -versioninfo 4:18
</pre>
<p>
then use these two variables and push them to your libtool linker
</p>
<pre>
libtest_la_LIBADD = @RELEASE_INFO@ @VERSION_INFO@
</pre>
<p>
and for a linux-target this will tell libtool to install the lib as
</p>
<pre>
libmy.so libmy.la libmy.a libmy-2.so.4 libmy-2.so.4.0.18
</pre>
<p>
and executables will get link-resolve-infos for libmy-2.so.4 - therefore
the patch-level is ignored during ldso linking, and ldso will use the one
with the highest patchlevel. Using just "-release $(VERSION)" during
libtool-linking would not do that - omitting the -version-info will libtool
install libmy.so libmy.la libmy.a libmy-2.4.18.so and executables would get
hardlinked with the 2.4.18 version of your lib.
</p>
<p>
This background does also explain the default dll name for a win32 target :
libtool will choose to make up libmy-2-4.dll for this version spec.
</p>
<p>
this macro does also set the usual three parts of a version spec
$MAJOR_VERSION.$MINOR_VERSION.$MICRO_VERSION but does not ac_subst for the
plain AX_SET_VERSION_INFO macro. Use instead one of the numbered macros
AX_SET_VERSION_INFO1 (use first number for release part) or that
AX_SET_VERSION_INFO2 (use the first two numbers for release part).
</p>
<p>
You may add sublevel parts like "1.4.2-ac5" where the sublevel is just
killed from these version/release substvars. That allows to grab the
version off a .spec file like with <a href=
"ax_spec_package_version.html">AX_SPEC_PACKAGE_VERSION</a> where the
$VERSION is used to name a tarball or distpack like mylib-2.2.9pre4
</p>
<p>
Unlike earlier macros, you can use this one to break up different VERSIONs
and put them into different variables, just hint with PREFIX-setting - i.e.
_VERSION(2.4.5,TEST) will set variables named TEST_MAJOR_VERSION=2... and
of course $TEST_RELEASE_INFO etc. (for the moment, it needs to be a literal
prefix *sigh*)
</p>
</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([AX_SET_VERSION_INFO1],[dnl
AS_VAR_PUSHDEF([MAJOR],ifelse($2,,[MAJOR_VERSION],[$2_MAJOR_VERSION]))dnl
AS_VAR_PUSHDEF([MINOR],ifelse($2,,[MINOR_VERSION],[$2_MINOR_VERSION]))dnl
AS_VAR_PUSHDEF([MICRO],ifelse($2,,[MICRO_VERSION],[$2_MICRO_VERSION]))dnl
AS_VAR_PUSHDEF([PATCH],ifelse($2,,[PATCH_VERSION],[$2_PATCH_VERSION]))dnl
AS_VAR_PUSHDEF([LTREL],ifelse($2,,[RELEASE_INFO],[$2_RELEASE_INFO]))dnl
AS_VAR_PUSHDEF([LTVER],ifelse($2,,[VERSION_INFO],[$2_VERSION_INFO]))dnl
test ".$PACKAGE_VERSION" = "." && PACKAGE_VERSION="$VERSION"
AC_MSG_CHECKING(ifelse($2,,,[$2 ])out linker version info dnl
ifelse($1,,$PACKAGE_VERSION,$1) )
MINOR=`echo ifelse( $1, , $PACKAGE_VERSION, $1 )`
MAJOR=`echo "$MINOR" | sed -e 's/[[.]].*//'`
MINOR=`echo "$MINOR" | sed -e "s/^$MAJOR//" -e 's/^.//'`
MICRO="$MINOR"
MINOR=`echo "$MICRO" | sed -e 's/[[.]].*//'`
MICRO=`echo "$MICRO" | sed -e "s/^$MINOR//" -e 's/^.//'`
PATCH="$MICRO"
MICRO=`echo "$PATCH" | sed -e 's/[[^0-9]].*//'`
PATCH=`echo "$PATCH" | sed -e "s/^$MICRO//" -e 's/^[[-.]]//'`
if test "_$MICRO" = "_" ; then MICRO="0" ; fi
if test "_$MINOR" = "_" ; then MINOR="$MAJOR" ; MAJOR="0" ; fi
MINOR=`echo "$MINOR" | sed -e 's/[[^0-9]].*//'`
LTREL="-release $MAJOR"
LTVER="-version-info $MINOR:$MICRO"
AC_MSG_RESULT([/$MAJOR/$MINOR:$MICRO (-$MAJOR.so.$MINOR.0.$MICRO)])
AC_SUBST(MAJOR)
AC_SUBST(MINOR)
AC_SUBST(MICRO)
AC_SUBST(PATCH)
AC_SUBST(LTREL)
AC_SUBST(LTVER)
AS_VAR_POPDEF([LTVER])dnl
AS_VAR_POPDEF([LTREL])dnl
AS_VAR_POPDEF([PATCH])dnl
AS_VAR_POPDEF([MICRO])dnl
AS_VAR_POPDEF([MINOR])dnl
AS_VAR_POPDEF([MAJOR])dnl
])
AC_DEFUN([AX_SET_VERSION_INFO2],[dnl
AS_VAR_PUSHDEF([MAJOR],ifelse($2,,[MAJOR_VERSION],[$2_MAJOR_VERSION]))dnl
AS_VAR_PUSHDEF([MINOR],ifelse($2,,[MINOR_VERSION],[$2_MINOR_VERSION]))dnl
AS_VAR_PUSHDEF([MICRO],ifelse($2,,[MICRO_VERSION],[$2_MICRO_VERSION]))dnl
AS_VAR_PUSHDEF([PATCH],ifelse($2,,[PATCH_VERSION],[$2_PATCH_VERSION]))dnl
AS_VAR_PUSHDEF([LTREL],ifelse($2,,[RELEASE_INFO],[$2_RELEASE_INFO]))dnl
AS_VAR_PUSHDEF([LTVER],ifelse($2,,[VERSION_INFO],[$2_VERSION_INFO]))dnl
test ".$PACKAGE_VERSION" = "." && PACKAGE_VERSION="$VERSION"
AC_MSG_CHECKING(ifelse($2,,,[$2 ])out linker version info dnl
ifelse($1,,$PACKAGE_VERSION,$1) )
MINOR=`echo ifelse( $1, , $PACKAGE_VERSION, $1 )`
MAJOR=`echo "$MINOR" | sed -e 's/[[.]].*//'`
MINOR=`echo "$MINOR" | sed -e "s/^$MAJOR//" -e 's/^.//'`
MICRO="$MINOR"
MINOR=`echo "$MICRO" | sed -e 's/[[.]].*//'`
MICRO=`echo "$MICRO" | sed -e "s/^$MINOR//" -e 's/^.//'`
PATCH="$MICRO"
MICRO=`echo "$PATCH" | sed -e 's/[[^0-9]].*//'`
PATCH=`echo "$PATCH" | sed -e "s/^$MICRO//" -e 's/^[[-.]]//'`
test "_$MICRO" != "_" || MICRO="0"
if test "_$MINOR" != "_" ; then MINOR="$MAJOR" ; MAJOR="0" ; fi
MINOR=`echo "$MINOR" | sed -e 's/[[^0-9]].*//'`
LTREL="-release $MAJOR.$MINOR"
LTVER="-version-info 0:$MICRO"
AC_MSG_RESULT([/$MAJOR/$MINOR:$MICRO (-$MAJOR.so.$MINOR.0.$MICRO)])
AC_SUBST(MAJOR)
AC_SUBST(MINOR)
AC_SUBST(MICRO)
AC_SUBST(PATCH)
AC_SUBST(LTREL)
AC_SUBST(LTVER)
AS_VAR_POPDEF([LTVER])dnl
AS_VAR_POPDEF([LTREL])dnl
AS_VAR_POPDEF([PATCH])dnl
AS_VAR_POPDEF([MICRO])dnl
AS_VAR_POPDEF([MINOR])dnl
AS_VAR_POPDEF([MAJOR])dnl
])
AC_DEFUN([AX_SET_VERSION_INFO],[dnl
AS_VAR_PUSHDEF([MAJOR],ifelse($2,,[MAJOR_VERSION],[$2_MAJOR_VERSION]))dnl
AS_VAR_PUSHDEF([MINOR],ifelse($2,,[MINOR_VERSION],[$2_MINOR_VERSION]))dnl
AS_VAR_PUSHDEF([MICRO],ifelse($2,,[MICRO_VERSION],[$2_MICRO_VERSION]))dnl
AS_VAR_PUSHDEF([PATCH],ifelse($2,,[PATCH_VERSION],[$2_PATCH_VERSION]))dnl
AS_VAR_PUSHDEF([LTREL],ifelse($2,,[RELEASE_INFO],[$2_RELEASE_INFO]))dnl
AS_VAR_PUSHDEF([LTVER],ifelse($2,,[VERSION_INFO],[$2_VERSION_INFO]))dnl
test ".$PACKAGE_VERSION" = "." && PACKAGE_VERSION="$VERSION"
AC_MSG_CHECKING(ifelse($2,,,[$2 ])out linker version info dnl
ifelse($1,,$PACKAGE_VERSION,$1) )
MINOR=`echo ifelse( $1, , $PACKAGE_VERSION, $1 )`
MAJOR=`echo "$MINOR" | sed -e 's/[[.]].*//'`
MINOR=`echo "$MINOR" | sed -e "s/^$MAJOR//" -e 's/^.//'`
MICRO="$MINOR"
MINOR=`echo "$MICRO" | sed -e 's/[[.]].*//'`
MICRO=`echo "$MICRO" | sed -e "s/^$MINOR//" -e 's/^.//'`
PATCH="$MICRO"
MICRO=`echo "$PATCH" | sed -e 's/[[^0-9]].*//'`
PATCH=`echo "$PATCH" | sed -e "s/^$MICRO//" -e 's/[[-.]]//'`
if test "_$MICRO" = "_" ; then MICRO="0" ; fi
if test "_$MINOR" = "_" ; then MINOR="$MAJOR" ; MAJOR="0" ; fi
MINOR=`echo "$MINOR" | sed -e 's/[[^0-9]].*//'`
LTREL="-release $MAJOR"
LTVER="-version-info $MINOR:$MICRO"
AC_MSG_RESULT([/$MAJOR/$MINOR:$MICRO (-$MAJOR.so.$MINOR.0.$MICRO)])
AC_SUBST(LTREL)
AC_SUBST(LTVER)
AS_VAR_POPDEF([LTVER])dnl
AS_VAR_POPDEF([LTREL])dnl
AS_VAR_POPDEF([PATCH])dnl
AS_VAR_POPDEF([MICRO])dnl
AS_VAR_POPDEF([MINOR])dnl
AS_VAR_POPDEF([MAJOR])dnl
])
</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>
<p>
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.
</p>
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As a special exception, the respective Autoconf Macro's copyright owner
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<p>
This special exception to the GPL applies to versions of the Autoconf Macro
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