Original von tom
$ ./configure --help
[...]
--enable-final build size optimized apps (experimental - needs lots of memory)
The program will be optimized for your CPU.
No. Those two are different things. CPU optimizations are
separate sitches, like -march=athlon-xp for example.
--enable-final optimizes in the way anda_skoa described.
The result is lower compile time and smaller binary size.
As this option sometimes produces compilation errors it is
recommended to try without it as soon as you notice that your
KDE source code doesn't compile.