10.5 and gcc8 x86-64 ok but ppc bails with dlerror

[Ken Cunningham]

I was not aware that supporting the bootleg crippled 10.6 PPC pre-beta had anything to do with why nobody had gotten around to updating the gcc version used on older systems.

At least, it was not anywhere on my radar.

Just -- nobody did the legwork.

Ken


On 2024-03-28, at 11:47 AM, Sergio Had wrote:

> Let me make another, final attempt to sort this out once for all and for everyone on old systems.
> 
> I got an idea how to satisfy Ken’s preference of not supporting ppc builds on 10.6 in gcc ports and my need to support those.
> 
> That was the stopper so far, not allowing an agreement to merge.
> 
> I may do this today itself: I have everything working for months, just need to sort commits to make it readable and implement a solution for what I want.
> 
> As a bonus, you will get IEEE intrinsics in Fortran – something that never existed on ppc.
> On Mar 29, 2024 at 02:36 +0800, Sergio Had <vital.had at gmail.com>, wrote:
>> You should not need gcc8. I had gcc11 working on 10.5 ppc (and ppc64 too). I have seen people using gcc13 on 10.5 ppc following my instructions from the PR.
>> 
>> What is the point of gcc8?
>> 
>> You build gcc10-bootstrap and then use it to build gcc13. Nothing else needed in between.
>> On Mar 28, 2024 at 23:58 +0800, Riccardo Mottola via macports-dev <macports-dev at lists.macports.org>, wrote:
>>> Hi,
>>> 
>>> after all the talk about gcc versions, I tried to build gcc 8 here.
>>> Officially it says "gcc8 is known to fail".
>>> 
>>> I first did just "build" on Intel 64bit and PPC 32bit - Intel 32bit
>>> later, I fear my MacBook has fan issues.
>>> 
>>> Intel 64bit finished build! Took several hours. I thus tried to install
>>> it... and it says again
>>> "libgcc8 is known to fail. Try to install anyway?" and yes, it just built!
>>> 
>>> However then it asks about libgcc9.... but I want to stay on libgcc8,
>>> that was the point... am Inheriting that it will go up to gcc13?
>>> 
>>> 
>>> On PowerPC instead build fails (and ultimate goal is to enable newer
>>> gccs on PPC too, where it is needed)
>>> 
>>> :info:build cc1plus: warning: '-mdynamic-no-pic' overrides '-fpic',
>>> '-fPIC', '-fpie' or '-fPIE'
>>> :info:build
>>> /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/jit/jit-playback.c:
>>> In member function 'gcc::jit::result*
>>> gcc::jit::playback::context::dlopen_built_dso()':
>>> :info:build
>>> /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_lang_gcc8/gcc8/work/gcc-8.5.0/gcc/jit/jit-playback.c:2599:3:
>>> error: 'dlerror' was not declared in this scope
>>> :info:build dlerror ();
>>> :info:build ^~~~~~~
>>> 
>>> 
>>> Already seen this? Full build log is 6.7MB
>>> Should I open a ticket on this or is there already one for gcc8 efforts?
>>> didn't find it.
>>> 
>>> Riccardo