Bug#887496: Combined patch backported from upstream

[John Paul Adrian Glaubitz]

Hi!

The attached patch was taken from Mozilla's upstream bug report 1326496
and contains the two fixes for both alpha and ia64.

Please drop the incomplete patch Alpha-architecture-is-64-bit.patch from
the package.

On ia64, we also need to lower the optimization level to make the package
build due to issues with the toolchain.

ia64 might also need more adjustments regarding the memory allocator as
it partially suffers from the same problems as arm64 and sparc64 due to
its extended address space. Thus, if mozjs segfaults on ia64, we need
to include ia64 in the list of changes in the sparc64-support.patch.

Adrian

> [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1326496

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz at debian.org
`. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
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