[CMake] How to make ctest not buffer its output?

[Hugo Heden]

2008/12/5 Daniel Nelson <torham at connect2.com>:
> Alexander Neundorf wrote:
>>
>> On Thursday 04 December 2008, Hugo Heden wrote:
>>>
>>> Good day all,
>>>
>>> I use ctest --build-and-test to do some stuff that takes a long time.
>>> It seems that ctest buffers the output of its subcommands so that
>>> nothing is written (to the "terminal") until at the end. This is a
>>> little unconvenient -- as a human I feel more comfortable actually
>>> seeing that "something is happening".
>>>
>>> Is there a way I can force ctest to not buffer the output of
>>> subcommands, but rather just flush it?
>>
>> Does ctest -VV do what you want ?
>> It switches to "extra verbose" mode.
>>

No, ctest still buffers the output until the whole build-and-test
process finishes.

>
> I submitted this some time ago as bug 0005814.  I don't believe there is a
> way to view the output until the test finishes.

Ah, thank you. The bug is here: http://public.kitware.com/Bug/view.php?id=5814

Yes, that reflects my issue exactly.

Hugo Heden