Re: Port getprogname module to SCO OpenServer

[Bruno Haible]

Hi Tim,

> > OK. And what about __UNIXWARE__ and __OPENSERVER__ that I see being used 
> > [1]?
> > On which versions are they defined?
> 
> For the most part __UNIXWARE__ and __OPENSERVER__ were used by some in
> build driver scripts. Usually like CFLAGS="-O -D__UNIXWARE__"

Since you say "by some", this makes them unreliable witnesses.

> Here is how it looks on current shipping products.
> 
> >                 |  OpenServer 5    |  OpenServer 6   |  UnixWare 7     |
> >                 |                  |                 |                 |
> >                 | native  |  gcc   | native  |  gcc  | native  |  gcc  |
> >                 |         |        |         |       |         |       |
> > ----------------+---------+--------+---------+-------+---------+-------+
> > _SCO_DS         |   1     |   1    |         |       |         |       |
> >                 |         |        |         |       |         |       |
> > __SCO_VERSION__ |         |        |402201601|       |402201403|       |
> >                 |         |        |         |       |         |       |
> >   __USLC__      |   1     |        |    1    |       |    1    |       |
> >                 |         |        |         |       |         |       |
> > __UNIXWARE__    |         |        |         |       |         |       |
> >                 |         |        |         |       |         |       |
> > __OPENSERVER__  |         |  507   |         |       |         |       |
> >                 |         |        |         |       |         |       |
> > __sysv5__       |         |        |         |   1   |         |   1   |
> > ----------------+---------+--------+---------+-------+---------+-------+

Thanks for this table. We'll be able to reference it in the future.

Consequence: If we want operating system specific predefines, we have these:

  * For OpenServer 5:
    #ifdef _SCO_DS
  * For OpenServer 6 and UnixWare 7:
    #if defined __SCO_VERSION__ || defined __sysv5__

It's clear now.

Bruno