maintainer-feedback requested: [Bug 216186] mail/thunderbird, www/firefox, www/firefox-esr, www/libxul, www/seamonkey: fail to build with libc++ 4.0

[bugzilla-noreply at freebsd.org]

Jan Beich (mail not working) <jbeich at FreeBSD.org> has reassigned Bugzilla
Automation <bugzilla at FreeBSD.org>'s request for maintainer-feedback to
gecko at FreeBSD.org:
Bug 216186: mail/thunderbird, www/firefox, www/firefox-esr, www/libxul,
www/seamonkey: fail to build with libc++ 4.0
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216186



--- Description ---
In file included from
/wrkdirs/usr/ports/mail/thunderbird/work/thunderbird-45.6.0/mozilla/ipc/content
proc/plugin-container.cpp:7:
In file included from ../../dist/include/nsXPCOM.h:10:
In file included from ../../dist/include/nscore.h:20:
In file included from ../../dist/include/mozilla/mozalloc.h:16:
In file included from
/wrkdirs/usr/ports/mail/thunderbird/work/thunderbird-45.6.0/obj-x86_64-unknown-
freebsd12.0/dist/stl_wrappers/new:44:
In file included from
/wrkdirs/usr/ports/mail/thunderbird/work/thunderbird-45.6.0/obj-x86_64-unknown-
freebsd12.0/dist/system_wrappers/new:3:
/usr/include/c++/v1/new:132:1: error: function declared '[[noreturn]]' after
its first declaration
_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void __throw_bad_alloc();  // not in C++ spec
^
/usr/include/c++/v1/__config:273:30: note: expanded from macro
'_LIBCPP_NORETURN'
#  define _LIBCPP_NORETURN [[noreturn]]
			     ^
../../dist/include/mozilla/throw_gcc.h:35:1: note: declaration missing
'[[noreturn]]' attribute is here
__throw_bad_alloc(void)
^

build log: http://sprunge.us/jOLB
"See Also" bugzilla field links upstream bug for more details.