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From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: Re: Crosspost: Help wanted from comp.compilers
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> >   That's an example of a case where a textually unchanged spec file
> > needs to be recompiled because of a change in compiler options.
>
> But GNAT doesn't do it, as you yourself point out!
  Which is a bug in gnatmake, IMHO.

> But I would expect that this happens when new options are applied to
> the withing program unit, not to the withed one. So you only recompile
> the things you ask for.
  In the example I gave, "gnatmake -gnato testgo" *should* see that
the compiler switches are different and thus recompile testgo1.ads,
which should cause a recompile of testgo2, though it had no changes
and was not mentioned on the command line, as well as testgo.