On Mon, Jul 25, 2011 at 4:08 AM, lol37 lol37 <lol37cs16@xxxxxxxxx> wrote: > Hello all, > How to disable completely -g flag when building gcc, i passed > CFLAGS="-O2" and edited Makefile but all subdirectory ( libgcc, > libstdc++v3, libgomp ... ) still uses the -g flags and i cannot edit > their Makefile, they are creating while building ( configure ) > Can someone help me, it will be grateful. I'm not familiar with automake and friends, so I can't help you with pulling flags out. According to the GCC folks, there is no penalty incurred with debug symbols. See "How does the gcc -g option affect performance?", http://gcc.gnu.org/ml/gcc-help/2005-03/msg00032.html. You can remove symbols after the fact with `strip`: > ls -l myprogram ... 6866924 2009-04-28 16:12 myprogram > strip --strip-debug myprogram > ls -l myprogram ... 1738761 2009-04-28 16:13 myprogram Jeff
