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Autoconf Macro: ax_warning_default_pkgconfig
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<h1>
ax_warning_default_pkgconfig
</h1>
<h2>
SYNOPSIS
</h2>
<p class="indent" style="white-space:nowrap;">
<code>AX_WARNING_DEFAULT_PKGCONFIGDIR [(dirvariable
[,[defsetting][,[A][,[N/A]]]])]</code><br>
<code>AX_ENABLE_DEFAULT_PKGCONFIGDIR [(dirvariable [,defsetting])]</code>
</p>
<h2>
DESCRIPTION
</h2>
<div class="indent">
<p>
print a warning message if the $(datadir)/aclocal directory is not in the
dirlist searched by the aclocal tool. This macro is useful if some `make
install` would target $(datadir)/aclocal to install an autoconf m4 file of
your project to be picked up by other projects.
</p>
<pre>
default $1 dirvariable = pkgconfigdir
default $2 defsetting = ${libdir}/pkgconfig
default $3 action = nothing to do
default $4 action = warn the user about mismatch
</pre>
<p>
In the _WARNING_ variant, the defsetting is not placed in dirvariable nor
is it ac_subst'ed in any way. The default fail-action $4 is to send a
warning message to the user, and the default accept-action $3 is nothing.
It is expected that a Makefile is generated with
pkgconfigdir=${libdir}/pkgconfig
</p>
<p>
The _ENABLE_ variant however will set not only the $pkgconfigdir shell var
of the script, but it is also AC-SUBST'ed on default - and furthermore a
configure option "--enable-default-pkgconfigdir" is provided. Only if that
option is set then $2 default is not set to the canonic default in the a
$prefix subpath but instead $2 default is set to the primary path where
`pkg-config` looks for .pc files. The user may also override the default on
the command line.
</p>
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<h2>
SOURCE CODE
</h2>
<p class="indent">
<a href=
"http://autoconf-archive.cryp.to/ax_warning_default_pkgconfig.m4">http://autoconf-archive.cryp.to/ax_warning_default_pkgconfig.m4</a>
</p>
<h2>
LICENSE
</h2>
<div class="indent">
<p style="white-space:nowrap;">
Copyright © 2008 Guido U. Draheim <guidod@gmx.de>
</p>
<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, see <<a href=
"http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>>.
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As a special exception, the respective Autoconf Macro's copyright owner
gives unlimited permission to copy, distribute and modify the configure
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use of the material that constitutes the Autoconf Macro.
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