Attachment 14889 Details for Bug 27807 – file.diff

[patch] file.diff

file.diff (text/plain), 1.83 KB, created by mwm on 2001-06-01 07:50:01 UTC

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Creator: mwm

Created: 2001-06-01 07:50:01 UTC

Size: 1.83 KB

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obsolete

>--- porters-handbook/book.sgml-orig	Thu May 31 21:21:58 2001
>+++ porters-handbook/book.sgml	Fri Jun  1 01:42:20 2001
>@@ -1265,6 +1265,42 @@
>         </sect2>
>       </sect1>
> 
>+     <sect1>
>+      <title>Optional dependencies</title>
>+      
>+      <para>Some large applications can be built in a number of
>+	configurations, adding functionality if one of a number of
>+	libraries or applications is available. Since not all users
>+	want those libraries or applications, the ports system
>+	provides hooks that the port author can use to decide which
>+	configuration should be built. Supporting these properly will
>+	make uses happy, and effectively provide 2 or more ports for the
>+	price of one.</para>
>+	
>+      <para>The easiest of these to use is
>+	<literal>WITHOUT_X</literal>. If the port can be built both
>+	with and without X support, then it should normally be built
>+	with X support. If <literal>WITHOUT_X</literal> is defined,
>+	then the version that does not have X support should be
>+	built.</para>
>+	
>+      <para>Various parts of GNOME have such knobs, though they are
>+	slightly more difficult to use. The variables to use in the
>+	<filename>Makefile</filename> are <makevar>WANT_*</makevar>
>+	and <makevar>HAVE_*</makevar>. If the application can be
>+	built both with or without one of the dependencies listed
>+	below, then the <filename>Makefile</filename> should set
>+	<makevar>WANT_PKG</makevar>, and should build the version that
>+	uses <makevar>PKG</makevar> if <makevar>HAVE_PKG</makevar>
>+	is defined.</para>
>+	
>+      <para>The <makevar>WANT_*</makevar> variables currently
>+	supported this way are <makevar>WANT_GLIB</makevar>,
>+	<makevar>WANT_GTK</makevar>, <makevar>WANT_ESOUND</makevar>,
>+	<makevar>WANT_IMLIB</makevar>, and
>+	<makevar>WANT_GNOME</makevar>.</para>
>+      </sect1>
>+
>       <sect1>
>         <title>Building mechanisms</title>

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