Gentoo's Bugzilla –
Attachment 451496 Details for
Bug 598130dev-lang/spidermonkey-24.2.0-r3 with dev-libs/icu-58.1 - segfault in equal (s1=0x0, s2=0x8d5ada "standard") at /var/tmp/portage/dev-lang/spidermonkey-24.2.0-r3/work/mozjs-24.2.0/js/src/builtin/Intl.cpp:529