[MacPorts] #59268: upgrading to gcc9 on SnowLeopard, and progress on upgrading gcc on PowerPC and Leopard Intel

[MacPorts]

#59268: upgrading to gcc9 on SnowLeopard, and progress on upgrading gcc on PowerPC
and Leopard Intel
---------------------------+-------------------------
  Reporter:  kencu         |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:  snowleopard
      Port:  gcc9 libgcc9  |
---------------------------+-------------------------
Description changed by kencu:

Old description:

> It's been two years since I last worked on this much, so I thought it
> would be time to try to bring the older systems up to harmony, as much as
> possible. This has been met with some success.
>
> With a very minor patch that looks completely upstreamable, `gcc9` and
> `libgcc9` build nicely on 10.6.8, both `i386` and `x86_64`.
>
> There was a hiccup six months ago when the assembler defaulted to an
> older version that ran into some troubles compiling `i386` code
> [ticket:58493] but all the new default compiler updates that came along
> with MacPorts 2.6.x have fixed that up nicely, and there is no longer
> such an issue.
>
> `gcc9` passes it's test suites reasonably well if not perfectly well --
> that's as good as `gcc8` did, and it's performed well.
>
> I will attach the test suite runs on i386 and x86_64 for anyone
> interested.
>
> I haven't yet looked at 10.5 Leopard. Given the results in this ticket,
> it may very well also be able to jump up to libgcc9/gcc9.
>
> On PowerPC, gcc8/libgcc8 now build through to completion -- I have the
> test suites running on both Tiger and Leopard. I have not as yet tried
> building gcc9/libgcc9 on PowerPC.

New description:

 It's been two years since I last worked on this much, so I thought it
 would be time to try to bring the older systems up to harmony, as much as
 possible. This has been met with some success.

 With a very minor patch that looks completely upstreamable, `gcc9` and
 `libgcc9` build nicely on 10.6.8, both `i386` and `x86_64`.

 There was a hiccup six months ago when the assembler defaulted to an older
 version that ran into some troubles compiling `i386` code [ticket:58493]
 but all the new default compiler updates that came along with MacPorts
 2.6.x have fixed that up nicely, and there is no longer such an issue.

 `gcc9` passes it's test suites reasonably well if not perfectly well --
 that's as good as `gcc8` did, and it's performed well.

 I will attach the test suite runs on i386 and x86_64 for anyone
 interested.

 I haven't yet looked at 10.5 Intel Leopard. Given the results in this
 ticket, it may very well also be able to jump up to libgcc9/gcc9.

 On PowerPC, gcc8/libgcc8 now build through to completion -- I have the
 test suites running on both Tiger and Leopard. I have not as yet tried
 building gcc9/libgcc9 on PowerPC.

--

-- 
Ticket URL: <https://trac.macports.org/ticket/59268#comment:1>
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