maintainer-feedback requested: [Bug 212431] www/firefox: Fix build with libc++ 3.9.0

[bugzilla-noreply at freebsd.org]

Dimitry Andric <dim at FreeBSD.org> has reassigned Bugzilla Automation
<bugzilla at FreeBSD.org>'s request for maintainer-feedback to gecko at FreeBSD.org:
Bug 212431: www/firefox: Fix build with libc++ 3.9.0
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212431



--- Description ---
Created attachment 174439
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=174439&action=edit
Patch for mozilla bug 1245076

While testing the clang390-import branch, I ran into issues building Firefox,
which manifest as:

/usr/work/share/dim/ports/www/firefox/work/firefox-47.0.1/obj-i386-portbld-free
bsd12.0/dist/include/mozilla/mozalloc.h:184:33:
error: no type named 'bad_alloc' in namespace 'std'
void* operator new(size_t size) MOZALLOC_THROW_BAD_ALLOC
				^~~~~~~~~~~~~~~~~~~~~~~~

Jan Beich already reported this in upstream bug 1269171 [1], and it is caused
by the way the Firefox build generates its standard library wrapper headers.

To properly fix this, we need to import the fixes for both upstream bug 1245076
[2] and bug 1269171 [1].  I also had to commit an additional workaround for it
in the clang390-import branch, r305496 [3].

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=1269171
[2] https://bugzilla.mozilla.org/show_bug.cgi?id=1245076
[3] https://svnweb.freebsd.org/changeset/base/305496