On Tue, May 23, 2017 at 9:42 PM Eli Schwartz via arch-general < arch-general@xxxxxxxxxxxxx> wrote: > On 05/15/2017 07:33 AM, Bartłomiej Piotrowski wrote: > > I will push new gcc to [testing] this week. > > Terrible things happened to my firefox and thunderbird-gtk2 builds when > I used what turned out to be a testing-enabled build chroot to build them. > > The builds succeeded but the UI elements blinked in and out constantly > and it was uncooperative switching tabs... basically everything fritzed. > No idea why... but disabling testing and `pacman -Syuu` allowed the > rebuilds to work as expected. > > Quickly googling gets me this, which looks like the same issue: > https://bugzilla.redhat.com/show_bug.cgi?id=1422532 No, this particular bug should have been fixed since 52.0... In any case, you can try CXXFLAGS+=" -fno-lifetime-dse -fno-delete-null-pointer-checks -fno-schedule-insns2" ; these were the optimization steps that used to cause trouble with GCC 6.
