From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD,
	FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4
X-Google-Thread: 103376,6df3ec0dff30c185
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news2.google.com!postnews.google.com!y9g2000prf.googlegroups.com!not-for-mail
From: Edward Fish <edward.r.fish@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: Open source Ada OS?
Date: Wed, 26 Jan 2011 15:58:08 -0800 (PST)
Organization: http://groups.google.com
Message-ID: <a8e001b7-254a-4143-b86a-2c38bbd50327@y9g2000prf.googlegroups.com>
References: <4d3f3be3$0$22088$742ec2ed@news.sonic.net>
 <ihnqbo$s8g$1@news.ett.com.ua>
 <a96af7c6-1317-4f40-bdd8-3ce2eb385d0c@y16g2000yqd.googlegroups.com>
 <op.vpwybpvzule2fv@garhos>
 <b1da7195-8f26-463e-a297-195131a615f0@j32g2000yqc.googlegroups.com>
 <ihq96p$li0$1@munin.nbi.dk>
NNTP-Posting-Host: 174.28.173.2
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
X-Trace: posting.google.com 1296086289 19838 127.0.0.1 (26 Jan 2011 23:58:09
 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Wed, 26 Jan 2011 23:58:09 +0000 (UTC)
Complaints-To: groups-abuse@google.com
Injection-Info: y9g2000prf.googlegroups.com; posting-host=174.28.173.2;
 posting-account=IGEw6QoAAAChe8btAoGmJk0kqF3q3VLA
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.13)
 Gecko/20101203 Firefox/3.6.13 ( .NET CLR 3.5.30729; .NET4.0E),gzip(gfe)
Xref: g2news2.google.com comp.lang.ada:17695
Date: 2011-01-26T15:58:08-08:00
List-Id: <comp.lang.ada>

Randy,
  It sounds almost like you want the ability to:
	a) Define a collection of files; (not a true set, as duplicate
[names] might be in it)
	b) Have the ability to 'subset' this collection; (this would be your
[sub-]project)
	c) Associate from the set in 'b' files from 'a'; (allowing different
bodies to be in different projects)
	d) Have changes to some files {the bodies} update only their
associated file from 'a'.

Something like this psudo-ada:
 x86_Compiler : Project:=
( "Compiler.A*","Frontend.A*","Backend.ADS","Backend.ADB" => "[INTEL]-
Backend.ADB" );

Is this an accurate description of what you want?