Hi Steve,

Correct, the ppc64el patches in 2.1 does not apply on version 2.0 due to
a missing layer called  LJ_GC64.

In fact, luajit version 2.0 only supports 32 bits architectures, and has
an exception for amd64, that is heavily based on the MAP_32BIT mmap
flag. The MAP_32BIT flag is only supported in the x86 world.

In luajit version 2.1 there is a more broad support for 64 bits
architecture.

That said, I understand that it would be very hard (and risky) to
backport ppc64el support into luajit version 2.0. Moving to version 2.1
would be a better idea, IMO.

Other than that, we tested this patch on powerpc and it works fine also.

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https://bugs.launchpad.net/bugs/1544649

Title:
  Luajit on ppc64el

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