On 2016-06-16, Luke Small <[email protected]> wrote: > Eh, I run it on a VM. I could copy one and somehow locate all the -O2's and > replace them with -O3's in the files. I'd probably have to write a program > to do it, unless there are easy to find, centrally located ones? > > On Thu, Jun 16, 2016 at 9:54 AM Janne Johansson <[email protected]> wrote: > >> Do you have the skills to detect and handle if gcc miscompiles something >> at -O3? >> If not, then don't. >> >> Noone else will help you getting a zomg-fast -O3 system working after a >> slight miscompile gets a few bad instructions stuffed into some lib >> somewhere, so if you break your system, you get to keep all the pieces. >> >> Short version: "if you had to ask, then the answer was no".
Building it that way is easy. If you can't figure it out then sorry but you have no chance of debugging the problems that you might run into, so giving a set of instructions would be a disservice.
