Hello, I recently learned that certain eix flags were removed for setting custom flags in their compilation environment. It is likely Firefox does similar, so please remove the offending use flags from www-client/firefox as well. Respectfully, R0b0t1
Please provide all relevant info to your bug report. I am not gonna sit here and guess what you are expecting.
My apologies for the delay. The "pgo" option seems to enable "-O3." Modification of useflags outside of make.conf is against ebuild policy. That the culprit is "pgo" is my best guess. All I know is that I saw "-O3" in Firefox build commands and I never set "-O3."
(In reply to R030t1 from comment #2) > My apologies for the delay. > > The "pgo" option seems to enable "-O3." Modification of useflags outside of > make.conf is against ebuild policy. > > That the culprit is "pgo" is my best guess. All I know is that I saw "-O3" > in Firefox build commands and I never set "-O3." The mozilla build system needs to maintain control of optimization, otherwise things can go awry. To compensate for those that want to go against mozilla's build system settings we have a 'custom-optimization' flag that allows optimization in CFLAGS to be honoured. We won't be changing this nor making custom-optimization default-enabled until such time as it's no longer needed by upstream. Closing as WONTFIX because when mozilla -does- always build reliably with whatever optimization is specified in CFLAGS, we will drop the use flag and honour CFLAGS on our own.