From owner-freebsd-questions@FreeBSD.ORG  Thu Aug 23 17:17:59 2012
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Date: Thu, 23 Aug 2012 19:17:50 +0200
From: Polytropon <freebsd@edvax.de>
To: david coder <dacoder@dcoder.net>
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Cc: questions@freebsd.org
Subject: Re: port configuration data [was re: firefox & png]
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On Thu, 23 Aug 2012 12:41:41 -0400, david coder wrote:
> it's happened already:  in another post here, polytropon gives a more central
> role to /var/db/ports/png/options.  if i understand him correctly, "make
> showconfig" executed in /usr/ports/graphics/png reads from that file.
> changes made through "make config" change both that file & files in
> /usr/local/include & subdirectories thereof.

Nothing in /usr/local is going to be changed until "make install"
(or "make deinstall" respectively) is executed. In /usr/local/include
header files are _installed_ for accessing library functions, mostly
a means for programmers to interface with software.

But it's correct that you mention /usr/local/include/libpng/pngconf.h
here. It's not to be changed by "make configure", but it will be
created by "make install", reflecting the properties libpng has
been installed with; it's a "machine configurable file for libpng"
by its own declaration. It belongs to the png port, _not_ to the
port configuration subsystem (which is _independent_ from the
ports theirselves.




-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...