According to the GNU make documentation, specifing '-j' (without integer) will cause make to spawn as many jobs as it sees fit. When you specify an integer you're saying 'spawn multiple jobs but no more than this'. Without -j, make will spawn only one job.
Of course none of this will have any effect if the project you're building cannot be split up into multiple job and that depends on many factors. It's not clear what these factors are. On Wed, Dec 2, 2009 at 2:48 PM, <[email protected]> wrote: > hi, > I just downloaded and tried the new Qt 4.6 (MinGW) and Qt Creator 1.3. > Generally, I am pleased as always - Qt and the Creator are really excellent > products. In order to speed up the compilation, I tried to enable the > "-j"-switch of make which - as I read - enables parallel compilation using > all off the available processor cores. One of my non-working attempts was to > add "-j4" to the "command line arguments for make" in "Build steps" on the > project tab. Doing so, the compile output messages are like: > ... > Starte: E:/Qt/2009.12/mingw/bin/mingw32-make.exe -j4 -w > ... > But this does not seem to have any effect. > Any suggestions or links on that topic would be very appreciated! > thanks! > werner > _______________________________________________ > Qt-creator mailing list > [email protected] > http://lists.trolltech.com/mailman/listinfo/qt-creator >
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