Re: High Sierra

Alexander,
    FYI, I wouldn't hold my breath waiting for upstream FSF gcc to
rewrite their time-stamping scheme just for darwin users. It is
interesting that the APFS filesystem seems to be the only one out
there to tickle this latent race condition in c++ header
installations. Guess every other file system is still in seconds
regarding its time granularity.
          Jack

On Wed, Sep 13, 2017 at 9:22 AM, Jack Howarth <[email protected]> wrote:
> Alexander,
>       We definitely should commit the changes to the gcc5, gcc6 and
> gcc7 packages that I proposed in...
>
> https://sourceforge.net/p/fink/package-submissions/4990/
> https://sourceforge.net/p/fink/package-submissions/4989/
> https://sourceforge.net/p/fink/package-submissions/4988/
>
> that patches libstdc++-v3/include/Makefile.in to add
>
> .NOTPARALLEL: install-headers
>
> in order to avoid https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81797
> on machines using the APFS file system.
>      Their scheme of time stamps to track the installation of the c++
> headers during the build only checks for the existence of the
> sub-directories created to install these headers in rather than their
> population state. The nanosecond granularity of the APFS file system
> breaks that scheme and requires the c++ header installation to be
> single threaded to avoid race conditions under the new file system.
>                       Jack
>
> On Tue, Sep 12, 2017 at 6:15 PM, Alexander Hansen
> <[email protected]> wrote:
>> Since we’ve got the official High Sierra release date now, we should think about a fink-0.42.0 release.
>>
>> 1) Currently, we will be sharing the 10.9-libcxx distribution for .info/patch files.  If anybody knows of a compelling reason that we should utilize a new distribution, now’s the time to mention it.
>> 2) The high-sierra-branch branch on Github is the place for any updates.
>> 3) It’s probably worth ending 10.9 support at this time, unless there are strong objections to this.
>>
>> --
>> Alexander Hansen, Ph.D.
>> Fink User Liaison
>>
>>
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