Re: gm2-4.7.4 latest on OSX ppc 10.5.8 build ok but fail all test

[Gaius Mulley]

ssbb <address@hidden> writes:

> On 4/6/20 3:00 PM, Gaius Mulley wrote:
>> ssbb <address@hidden> writes:
>>
>>> Hello  [first post on maillist, greetings everybody]
>>>
>>> I build  gcc 4.7.4 + gm2 grabbed from git on OSX ppc 10.8.4, using
>>> apple gcc 4.2.1 (Apple Inc. build 5577). I added mpfr-2.4.2 ,
>>> gmp-4.3.2, mpc-0.8.1 in the src tree of gcc, as prescribed.
>>>......
>>>.......
>>> Any hints? Anyway thanks in advance, would be great to have gm2
>>> working in a 'old' powerpc mac.
>>
>> Hello and welcome,
>>
>> any chance you can install libpth (or possibly build and install it) ?
>>
>>
>
> I build fine libpth 2.0.7 and 2.0.4 (using apple-gcc-4.2.1 and a
> gcc-4.9.4), but both fail basic testing at beginning, with malloc
> "non-aligned pointer being freed" errors.
> I spent some time to figure out the problem, zero results, too out of
> my range.
> So it's time to ask to libpth gurus...
>
> There are any alternatives to libpth? i found none...
>

Hello,

ah yes - gm2 based on gcc-10 no longer uses libpth.  It probably would
be relatively easy to prune libpth from earlier branches of gm2 - of
course it would remove any coroutine support though.  But it only makes
a few calls to pth_select and the context creation/switching routines.
On the gcc-9 branch this has been done (certainly mostly done) - if I
recall correctly to aid bootstrap build

How far away are you from building gcc-9 ?

regards,
Gaius