[Bug 277021] www/firefox: error on start after updating to 123.0 (rc1, rc2)

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277021

--- Comment #65 from Tatsuki Makino <tatsuki_makino@hotmail.com> ---
(In reply to Tomoaki AOKI from comment #64)

Hmmm, I don't know :)
It seems to me that if we replace the y=x/60;z=x%60; calculation with div,
Intel's CPU reduces the division from twice to once.


Back to firefox,
Sorting and comparing the poudriere logs, the following differences occur in
certain areas.

@@ -64970,17 +64944,12 @@
 ld.lld: warning: undefined symbol: aom_codec_version_str
 ld.lld: warning: undefined symbol: aom_img_wrap
 ld.lld: warning: undefined symbol: atan
-ld.lld: warning: undefined symbol: ceil
 ld.lld: warning: undefined symbol: cos
 ld.lld: warning: undefined symbol: exp
 ld.lld: warning: undefined symbol: exp2
-ld.lld: warning: undefined symbol: floor
-ld.lld: warning: undefined symbol: floorf
 ld.lld: warning: undefined symbol: log
 ld.lld: warning: undefined symbol: log10
 ld.lld: warning: undefined symbol: pow
-ld.lld: warning: undefined symbol: rint
-ld.lld: warning: undefined symbol: rintf
 ld.lld: warning: undefined symbol: sin
 leads to different rendering results, and you might change port's options to
 line to the "Modules" section of your X Windows configuration file:

It means that the use or non-use of -march=haswell will change whether these
functions are used or not.
Other parts that do not change should certainly be linked to libm, but what
should the link be for the parts that have functions that change?

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