last version of gcc for 32 bit power pc mac?

last version of gcc for 32 bit power pc mac?

[Aharon Robbins]

Hi All.

I have a ~20 year old 32 bit Power PC macintosh system that still runs.

Can someone tell me the most recent version of GCC that still supports
this platform?

Please reply directly (or cc me) as I don't subscribe to this list.

Much thanks,

Arnold Robbins
(the gawk guy)

Re: last version of gcc for 32 bit power pc mac?

[Iain Sandoe]

HI Arnold

> On 20 Apr 2023, at 20:45, Jonathan Wakely <jwakely.gcc@gmail.com> wrote:

> ---------- Forwarded message ---------
> From: Aharon Robbins <arnold@skeeve.com>
> Date: Thu, 20 Apr 2023, 19:07
> Subject: last version of gcc for 32 bit power pc mac?
> To: <gcc-help@gnu.org>
> 

> I have a ~20 year old 32 bit Power PC macintosh system that still runs.

Yup .. me too - my oldest oldest is a 500MHz power mac AGP (runs darwin8 and takes 3 days to bootstrap the compiler and a week to test it)..

.. but mostly I work on a Quad G5.

> Can someone tell me the most recent version of GCC that still supports
> this platform?

GCC supports powerpc-darwin9 (and actually powerpc using Rosetta on darwin10) up to and including current trunk (GCC-14).  The only constraint is the compiler used to bootstrap the build.

Iff you want to build GCC with the last released xcode (3.1.4)  for Darwin9 [MacOSX 10.5] then you will need to stick with GCC10.x as the last version (newer GCC now needs C++11 to bootstrap, which is not supported by xcode 3.1.4).

However, once you have a suitable bootstrap compiler [GCC 5 or newer] you can use that to build any current version of GCC.

I publish branches with some “go faster stripes” for MacOSX / Darwin here: https://github.com/iains
(but for powerpc darwin, the upstream branches should also be fine).

HTH,
Iain

Re: last version of gcc for 32 bit power pc mac?

[Iain Sandoe]

Hi Arnold,

> On 21 Apr 2023, at 10:03, arnold@skeeve.com wrote:

> So, if I understand you, I can use the native GCC to bootstrap the
> most recent release of GCC 10, and from there bootstrap current releases?

Yes.

> I will try it out. Bootstrapping GCC takes several hours, I let it
> run overnight usually.
> 
> If you want I can fire up the mac and send you the output of uname -a
> and gcc --version.

Not necessary unless there’s some problem
 - I am assuming you are using 10.5 (Leopard / Darwin9)

 - OTOH, If you are on Tiger / 10.4 / Darwin8, then there are some additional steps needed to update the system tools to something modern enough to support the C++ in use.

> BTW, you mention that GCC 14 is the current trunk, but I don't see GCC 13
> on ftp.gnu.org, only GCC 12. Any idea why that is?

GCC-13 is currently in the release process - expected to appear within the next week or two.

Iain