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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,e5006bbc2c63c1db X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!postnews.google.com!r1g2000yqj.googlegroups.com!not-for-mail From: Ludovic Brenta Newsgroups: comp.lang.ada Subject: Re: GPS Compiler options Date: Fri, 9 Apr 2010 09:40:48 -0700 (PDT) Organization: http://groups.google.com Message-ID: <58f925ee-9d4a-4773-98f9-24fe39a7adc1@r1g2000yqj.googlegroups.com> References: <4bbf2806$0$19565$703f8584@news.kpn.nl> <13txt3b8b77p5.upyewgdx7mkh.dlg@40tude.net> NNTP-Posting-Host: 153.98.68.197 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: posting.google.com 1270831248 9387 127.0.0.1 (9 Apr 2010 16:40:48 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Fri, 9 Apr 2010 16:40:48 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: r1g2000yqj.googlegroups.com; posting-host=153.98.68.197; posting-account=pcLQNgkAAAD9TrXkhkIgiY6-MDtJjIlC User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.8) Gecko/20100202 Firefox/3.5.8,gzip(gfe) Xref: g2news1.google.com comp.lang.ada:9949 Date: 2010-04-09T09:40:48-07:00 List-Id: Dmitry A. Kazakov wrote on comp.lang.ada: > On Fri, 9 Apr 2010 07:15:07 -0700 (PDT), Ludovic Brenta wrote: > > ldries46 wrote on comp.lang.ada: > >> I'm relatively new to GPS. I'm trying to compile a program but every time I > >> compile the program I observe that all units are compiled when I had > >> expected that only the unit I had altered would be compiled again. What do I > >> have to do to make this work. I alreday have tried all types of building of > >> the program. > > > The bug may be either in gnatmake or in your expectations; this > > depends on which unit you change. > > > If you change a spec, then all specs and all bodies that depend on the > > changed spec need to be recompiled. > > > If you change a generic body, then all specs and bodies that contain > > an instantiation of the generic body need to be recompiled (this is > > specific to GNAT, which does not share the object code between > > insiantiations of a generic). > > > If you change a file containing a "separate" unit, then the enclosing > > unit needs to be recompiled too, because GNAT emits only one object > > file containing the enclosing units and all "separate" bodies in it. > > > We could help you more if you would be more specific about the units > > in your program and on which units you changed. > > > PS. Maybe consider using the gnatmake -m switch ("minimal > > recompilation"); you do that by changing the project properties in > > GPS. With this option, gnatmake expends more effort trying to > > determine which units are still up to date. > Also, when the object and ali-files are on a remote server, usually > together with the sources (this is the case at my work), accessed over a > network file system (samba, NFS etc), then if the compiling computer has > the clock unsynchronized with the server, you may get the described effect > (or worse, non-compiled files). I think gnatmake -m corrects this problem. With this option, gnatmake no longer relies on the timestamps but only on the CRC32 values in the .ali files. -- Ludovic Brenta.