Re: IBM z/OS compatibility issues

[Bruno Haible]

Hi Daniel,

> >   - Put the xlc-wrap logic into the 'compile' script. We should not
> >     have two different compile scripts, one for MSVC and one for z/OS.
> >     A single script should do it.
> 
> This sounds good. It would imply broadening the scope of the script
> beyond just working around the -c -o limitation, but then it was always
> a curiosity that that has been the *only* issue this script was intended
> to work around (until now).

In fact, the other issue this script works around are the invocation
conventions of the MSVC compiler (slash options instead of dash options).

> Also: I see that AC_USE_SYSTEM_EXTENSIONS() actually comes from
> Autoconf. Would that be a good place to put e.g. the -D_UNIX95_THREADS
> flag needed to get a proper pthreads API? I see that as similar in
> spirit to -D__EXTENSIONS__.

Yes, I agree.

> >   - Other than that, use documentation. I have added the most important
> >     information (from this mail thread) in
> >     <https://gitlab.com/ghwiki/gnow-how/-/wikis/Platforms/Configuration>
> >     and would like to invite you to create a new wiki page
> >     
> > <https://gitlab.com/ghwiki/gnow-how/-/wikis/Platforms/Configuration/zOS>.
> 
> I can add some information, but am concerned about discoverability. I
> myself was not aware of this wiki until you mentioned it to me

This wiki is very recent (just a month old). The more useful content we add,
the more known it will become. Gnulib did not become widely known within a
month either :-)

Bruno