Re: possible solution for -Otarget recurse

[Stefano Lattarini]

On 05/05/2013 05:30 PM, Paul Smith wrote:
> On Sun, 2013-05-05 at 11:11 +0200, Stefano Lattarini wrote:
>> Sorry to add this only now, but I realized the failure is only
>> reproducible if I run the testsuite with "make -j", as in "make -j8
>> check; and even in that case, the failure is racy.  With a bare "make
>> check", things work for me as well.  On the other hand, increasing the
>> parallelism even more, other tests start to fail as well:
> 
> The test suite definitely cannot be run in parallel.
>
I realize that (and it's no issue, considering how fast the make testsuite
is); but I often run a "make -j8 check" just after running "./configure"
(requires less typing than "make -j8 && make check"), and that's where
things broke down.

> However this
> should not happen (and does not happen in my environment when I run the
> commands above) because the test harness cleans out the environment,
> which will remove any of the MAKEFLAGS or MFLAGS variables that might
> tell the make to run in parallel when it's not expected.
> 
> Can you examine your shell configuration files etc. to see if they're
> setting MAKEFLAGS or MFLAGS?
>
Definitely not.

> Although if that's true then the tests should fail all the time.
>
> Can you verify that there don't seem to be any leftover test files in
> the tests directory?  Sometimes if something doesn't get cleaned up
> correctly that can cause future builds to fail.  However if that were
> the case then "make check" without -j would fail as well.
>
> I don't have an explanation for this.
>
It's no big deal; I can just run "make check" and live happily.  Also,
I don't have the mental bandwidth to try to debug this ATM, sorry.
Let's return to the issue if I get bitten again.  Or maybe you'll manage
to reproduce the issue somehow.

In the meantime, thanks for your help and your attention,
  Stefano