Re: Unix Domain Sockets error (was Re: [HACKERS] Alpha initdb fixed!)

On Tue, 17 Mar 1998, Dwayne Bailey wrote:

>Re: your suggestion to use __alpha and not worry about the
>makefile, I'm a little uncomfortable with that.  DEC's cc will
>actually output different symbols, depending on the use of the
>- -std flag.  I'd rather have something that we have explicit
>control over, rather than relying on the compiler like this.  I'm
>not violently opposed to useing __alpha or anything, it's just a
>preference against it.

Here's an extract from the DEC's cc man page:

  The following table shows which macros are defined for each of the -std
  flags.

  -----------------------------------------------
  Macro                   std0        std   std1
                          (default)
  -----------------------------------------------
  LANGUAGE_C              yes         no    no
  __LANGUAGE_C__          yes         yes   yes
  unix                    yes         no    no
  __unix__                yes         yes   yes
  __osf__                 yes         yes   yes
  __alpha                 yes         yes   yes
  SYSTYPE_BSD             yes         no    no
  _SYSTYPE_BSD            yes         yes   yes
  LANGUAGE_ASSEMBLY       yes         yes   yes
  __LANGUAGE_ASSEMBLY__   yes         yes   yes
  -----------------------------------------------

As you can see, __alpha and __osf__ are always defined. However, I
understand your point. If we define 'alpha' in the template file, we are
protected from mind-changing vendors that define __alpha in DU 3.2 and
__alpha__ in DU 4.0 and alpha__ in DU 5.0 (just an example). From this
point of view, the current approach is better. And, it's always easier
(and safer) to leave things untouched.

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