https://bugzilla.mozilla.org/show_bug.cgi?id=833117
FireFox 22 fails to launch as described in the bug report after updating
glib20 to version 2.36.3.
My copy of the Epiphany browser is built on libxul 17.0.7, which still works,
as does Thunderbird 17.0.7.
I have been able to distill out more information on the error, which acts like
Mozilla bug 833117.
I am using:
FreeBSD i386 9.2-BETA2 #0 r253950 (compiled with -O2)
clang-devel 3.4.r182968
firefox 23.0,1
I have been using compile options -O2 for the base system, and -O3 via
OPTIMIZED_CFLAGS=on for FireFox, for years without issue.
I have recently been using the latest clang-devel to overcome issues building
LibreOffice, (which have likely been fixed in base Clang by now),
gcc 4.6.3, and base gcc 4.2.1; with each compiler used as requested by the port.
(www/firefox invokes Clang)
With the glib20 update to version 2.36.3, the symptoms of Mozilla bug 833117
manifested for FireFox 2x but not 1.7 esr.
I have since eliminated the spurious errors related to the glib20 upgrade.
The [ GLib-CRITICAL **: g_slice_set_config: assertion `sys_page_size == 0'
failed ] error discussed earlier appears to be a red herring,
as it still appears when starting FireFox 23 even when the bug does not
manifest.
I have isolated that building www/firefox with OPTIMIZED_CFLAGS invoking -O3
causes bug 833117 to manifest,
while building www/firefox with -O2 in make.conf allows FireFox to work
normally.
The root cause appears to be a compiler optimization issue.
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