Re: OpenVMS needs __UNIX_PUTC macro defined for configure tests.

[John E. Malmberg]

On 7/7/2017 2:43 AM, Bruno Haible wrote:
> John E. Malmberg wrote:
> > I found out what the issue is.  The OpenVMS stdio.h file makes the
> > unlocked IO routines only available as macros.  There is no declaration.
> >
> > Configure detects the macros, and that there is no declaration of them.
> >
> > The unlocked-io.h since the HAVE_DECL_FPUTS_UNLOCKED is not defined,
> > redefines the "fputc_unlocked" to not work.
> >
> > So unlocked-io.h would need to be modified to not replace the OpenVMS
> > stdio.h macros if they exist.
>
> OK, can you provide a patch to m4/unlocked-io.m4 and/or lib/unlocked-io.h?

Here is a patch that modifies m4/extensions to enable the unlocked 
functions on OpenVMS.

I then modified lib/argp-namefrob.h and lib/unlocked-io.h to not replace 
the OpenVMS macros.

I assume that there is a reason that lib/arg-namefrob.h is not just 
including lib/unlocked-io.h.

I was not sure if mentioning that the unlocked functions currently are 
not available for OpenVMS C++ programs due to an issue with the current 
C++ compiler in the posix-functions documentation.

Regards,
-John

0001-stdio-OpenVMS-port-of-putc_unlocked.patch.gz
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