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Mail Archives: cygwin-apps/2002/05/15/01:13:09

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Message-ID: <3CE1EE6A.4050607@ece.gatech.edu>
Date: Wed, 15 May 2002 01:13:14 -0400
From: Charles Wilson <cwilson AT ece DOT gatech DOT edu>
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To: cygwin-apps AT cygwin DOT com
Subject: Re: upset now understands 'external-source' option
References: <20020515033102 DOT GA8017 AT redhat DOT com>

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Christopher Faylor wrote:

> I've added the previously mentioned external-source option to
> upset, so this is now valid in setup.hint (but not setup.ini).
> 
>   @ libbz2
>   sdesc: "shared libraries for bzip2 (runtime)"
>   ldesc: "bzip2 is a freely available, patent free, high-quality data
>   compressor. It typically compresses files to within 10% to 15% of the best
>   available techniques (the PPM family of statistical compressors), whilst being
>   around twice as fast at compression and six times faster at decompression."
>   category: Libs 
>   requires: cygwin bzip2
>   external-source: bzip2
> 
> Anyone want to submit the corresponding web page change?


How's this:

--Chuck


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Index: setup.html
===================================================================
RCS file: /cvs/cygwin/htdocs/setup.html,v
retrieving revision 1.78
diff -u -r1.78 setup.html
--- setup.html	5 May 2002 21:02:08 -0000	1.78
+++ setup.html	15 May 2002 05:12:15 -0000
@@ -56,9 +56,13 @@
 should contain the source files needed to rebuild the package.  While
 installing these files is optional under setup.exe, the inclusion of a
 source tar file is part of the totality that makes up a cygwin package
-and so, these files are <em>not</em> optional.  See the <a
+and so, these files are <em>not</em> optional.  In some cases, there 
+may be multiple packages generated from the same source; for instance,
+one might have a "boffo" package and its associate shared library in
+"libboffo7", where both are generated from the same -src tarball.  See the <a
 href="#srcpackage_contents"> making packages</a> section below for more
-details on the contents of a -src tar file..</p>
+details on the contents of a -src tar file, and the <a href="#setup.hint">setup.hint</a>
+section for information on the "external-source:" option.</p>
 
 <p>The setup.hint file is discussed <a href="#setup.hint">below</a>.
 
@@ -153,6 +157,7 @@
 test: <i>version</i>
 category: <i>name1[ name2...]</i>
 requires: <i>package[ package...]</i>
+external-source: <i>package</i>
 </pre>
 
 <p>(You may see some older setup.hint files which lack the colons after
@@ -357,6 +362,90 @@
 <p>Notice that we didn't use the <tt>prev</tt>, <tt>curr</tt>,
 <tt>test</tt>, or <tt>@</tt> options.  Instead, we relied on the
 automatic setup.ini generator to do as much as possible for us.</p>
+
+<h3><a id="advanced_setup.hint" name="advanced_setup.hint"><tt>setup.hint (Advanced Options)</tt></a></h2>
+
+
+<p>The <tt>external-source</tt> line is used when multiple installation 
+packages are generated from a single -src package.  For example, suppose
+the <tt>boffo</tt> package contains the executables and documentation for 
+boffo, but there is also a shared library <tt>cygboffo-7.dll</tt> that 
+might be used by other packages; say, the <tt>fobbo</tt> program.  It 
+would be nice to separate that <tt>cygboffo-7.dll</tt> shared library 
+into a second installation package, so that users of the <tt>fobbo</tt>
+program can install <em>just</em> the library, and not the entire 
+<tt>boffo</tt> package.  However, all of the <tt>boffo</tt> executables 
+and the DLL are generated from the same source.  To support this usage,
+the <tt>boffo</tt> maintainer would create three packages:</p>
+
+<UL>
+<LI><tt>boffo-2.4.1-2.tar.bz2</tt>: an installable package that contains
+all of the normal contents of <tt>boffo</tt> -- except for the shared library.
+<LI><tt>libboffo7-2.4.1-2.tar.bz2</tt>: an installable package that contains
+only the shared library from <tt>boffo</tt>
+<LI><tt>boffo-2.4.1-2-src.tar.bz2</tt>: the -src tarball for boffo.
+</UL>
+
+<p><tt>boffo-2.4.1-2.tar.bz2</tt>, <tt>boffo-2.4.1-2-src.tar.bz2</tt>,
+and the boffo <tt>setup.hint</tt> 
+would go into the <tt>release/boffo/</tt> subdirectory on the cygwin 
+server.  <tt>libboffo7-2.4.1-2.tar.bz2</tt> would go into a separate 
+subdirectory, such as <tt>release/boffo/libboffo7/</tt>, along with
+a separate libboffo7 <tt>setup.hint</tt>.  The two <tt>setup.hint</tt>
+files would look something like this:</p>
+
+<center>
+<table border=2 >
+<tr>
+<td><center><tt>boffo</tt> setup.hint</center></td>
+<td><center><tt>libboffo7</tt> setup.hint</center></td>
+</tr>
+<tr>
+<td>
+<tt>category: Games Text</tt><br>
+<tt>requires: libboffo7 libncurses6 cygwin</tt><br> 
+<tt>sdesc: "A whackamole simulation in ASCII art"</tt><br>
+<tt>ldesc: "A whackamole simulation in ASCII art.
+<tt>Intended for use on VT100 terminals at BAUD rates 1200 and
+<tt>above.  Uses arrow keys for positioning over moles.  Space
+<tt>bar whacks the mole.<br><br>
+<tt>No actual moles will be harmed during execution of this game."</tt><br>
+</td>
+<td>
+<tt>category: Games Text</tt><br>
+<tt>requires: cygwin</tt><br>
+<tt><b>external-source: boffo</b></tt><br>
+<tt>sdesc: "Runtime library for a whackamole simulation in ASCII art"</tt><br>
+<tt>ldesc: "A whackamole simulation in ASCII art.
+<tt>Intended for use on VT100 terminals at BAUD rates 1200 and
+<tt>above.  Uses arrow keys for positioning over moles.  Space
+<tt>bar whacks the mole.<br><br>
+<tt>No actual moles will be harmed during execution of this game."</tt><br>
+</td>
+</tr>
+</table>
+</center>
+
+<p>The setup.ini generated from these setup.hint files will include these lines
+(only relevant lines shown):</p>
+<pre></tt>
+@ boffo
+requires: libboffo7 libncurses6 cygwin
+version: 2.4.1-2
+install: release/boffo/boffo-2.4.1-2.tar.bz2
+source: release/boffo/boffo-2.4.1-2-src.tar.bz2
+
+@ libboffo7
+requires: cygwin
+version: 2.4.1-2
+install: release/boffo/libboffo7/libboffo7-2.4.1-2.tar.bz2
+source: release/boffo/boffo-2.4.1-2-src.tar.bz2
+</tt>
+</pre>
+
+<p>Note that both packages point to the same -src tarball.  Also, it is required
+that the version strings match (libboffo7-5.2 won't point to boffo-1.4-src).  The
+same logic is used to "match up" prev: and test: versions.</p>
 
 <h2><a id="package_contents" name="package_contents">Making Packages</a></h2>
 <p>The files paths within both the -src and the binary package files are

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