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[Bug ada/40984] Build failure in oscons stage not detected.
- From: "davek at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Oct 2009 12:23:24 -0000
- Subject: [Bug ada/40984] Build failure in oscons stage not detected.
- References: <bug-40984-14373@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from davek at gcc dot gnu dot org 2009-10-03 12:23 -------
(In reply to comment #1)
> Wouldn't it be enough to replace ";" by "&&" between the various steps?
>
Hello Sam, the problem with just doing that is that xoscons can fail but still
leave fragmentary output, and then next time you build make sees that the
output file exists and doesn't try rebuilding it. Using && would cause make to
fail at the error, but we still need to guarantee the partial output file is
deleted, otherwise the next build will not try rebuilding the xoscons outputs
and will error some time later when it reuses the fragmentary output while
attempting to compile the runtime library.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40984