bug#81485: 31.0.91; flymake-test failure on 32-bit Solaris sparc

>> I could look into this test failure, but I have
>> no 32-bit Solaris sparc at hand.  What should I do?
>
> I hoped that just by looking at the error messages one could guess
> what was the cause of the problem, assuming some familiarity with the
> code.

'flymake-cc--make-diagnostics' tries to match the error message
emitted by the C compiler using such a regexp:

   (search-forward-regexp
    "^\\(In file included from \\)?\\([^ :]+\\):\\([0-9]+\\)\\(?::\\([0-9]+\\)\\)?:\n?\\(.*\\): \\(.*\\)$"
    nil t)

Probably the C compiler on Solaris outputs the error message
in another format.

>> IIUC, what is required is to try running 'flymake-cc'
>> on Solaris.  Or could we just skip this test on Solaris?
>
> That's also a possibility, if we have no reasonably practical way of
> understanding the reasons.

So maybe this test should be skipped when
system-type / system-configuration matches Solaris.