Optimized Qt compilation

[quimnuss]

I am building static Qt targeting a non very powerful single processor XP machine. (apparently Pentium III, Intel Pentium 1.10 GHz)

I've managed to compile it but how can I build it with optimized flags /O3 etc. and what about sse2 and so on?

The application is too slow and can't keep up with the sent signals sent at 1Hz.

[anda_skoa]

You can add to QMAKE_CFLAGS and QMAKE_CXXFLAGS in your .pro file.

Also make sure you are doing actual profiling to check if any code paths can be written more efficiently.

Cheers,
_