Re: Further GUB failure

[David Kastrup]

Phil Holmes <address@hidden> writes:

> I'm now getting this error:
>
> /home/gub/NewGub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--
> lilypond.git-release-unstable/flower/offset.cc:43:25: error: 'isinf' was not
> declared in this scope
>    if (!isinf (z2[Y_AXIS]))
>                          ^
>
> It looks like the compiler cannot find isinf, and possibly this patch is 
> guilty:
>
> http://code.google.com/p/lilypond/issues/detail?id=4550

isinf is supposed to be defined in cmath (without scoping) which is
included by flower/include/offset.hh.  And of course this works on most
platforms or we'd have gotten complaints already.

Now darwin-ppc is an obsolete platform and consequently our cross
compiler/library is likely not all that up-to-date.  I fear this is
likely a compiler/library bug and it will likely be rather tough to
figure out an appropriate workaround when the only available test is
running GUB by a volunteer without much knowledge about either GUB's
internal workings or Darwin-PPC.

Would it be feasible to run on a version where the patch for issue 4550
has been reverted?  We might cheat our way through in that manner (this
is not likely to have runtime effects) but short of a volunteer to
figure out what's going wrong here in detail, it might mean that maybe
it's time to retire Darwin-PPC.  We can still bring it back in once
somebody volunteers to fix this and possibly future problems.

-- 
David Kastrup