Bug#594288: kfreebsd-8: non-standard gcc/g++ used for build (gcc-4.3)

[Tuco <tuco.xyz@gmail.com>]

On 9/13/10, Petr Salinger <Petr.Salinger@seznam.cz> wrote:
> But when compiled with "-O1" it boots (and runs) fine on kfreebsd-amd64.

>From http://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#Optimize-Options

-O2 turns on all optimization flags specified by -O. It also turns on
the following optimization flags:

          -fthread-jumps
          -falign-functions  -falign-jumps
          -falign-loops  -falign-labels
          -fcaller-saves
          -fcrossjumping
          -fcse-follow-jumps  -fcse-skip-blocks
          -fdelete-null-pointer-checks
          -fexpensive-optimizations
          -fgcse  -fgcse-lm
          -finline-small-functions
          -findirect-inlining
          -fipa-sra
          -foptimize-sibling-calls
          -fpartial-inlining
          -fpeephole2
          -fregmove
          -freorder-blocks  -freorder-functions
          -frerun-cse-after-loop
          -fsched-interblock  -fsched-spec
          -fschedule-insns  -fschedule-insns2
          -fstrict-aliasing -fstrict-overflow
          -ftree-switch-conversion
          -ftree-pre
          -ftree-vrp

so we could find the faulty one by recombining them? It is just 5
builds, I can do this if you like.