[QBS] Strange incremental build in QtC 3.2 qbs.

[Smirnov Vladimir]

On 08.09.2014 19:00, qbs-request at qt-project.org wrote:
> Err, no, please don't. It's supposed to be off by default. If it had
> been on, that could have been a possible problem source.
Yes, i noticed that it had been turned on. But i have more interesting 
results... I found on qbs tracker env variable for creator to be more 
verbose.
I turned that to level 4, so... (from command line shipped version I 
still had no luck):
-I tried to disable "timestamp checks". It hadn't helped. I read the 
TONS OF OUTPUT, lol, you were right (coffee-break), and found strange lines:
Checking for mutexRW
stamps stamps stamps
Dependent file missing (or smth like that)
Unfortunately, debug outputs didn't say which file is missing, so I must 
guess it =)
I have some... buggy line in tha file.
#include "/usr/local/arm-linux/<skipped>/atomicity.h"
I have experimented with atomics and just forget to remove it, instead 
placed in
#if 0

#endif
macros. But, when i commented out these lines, BUG disappeared 
magically! No instant rebuilds.
I think last changes (inspired by MY bugreport, ironically) of tracking 
missing include files had effect.

Another question, why "undefined" part of code had effect.