Path: utzoo!attcan!uunet!husc6!mailrus!ulowell!apollo!oj
From: oj@apollo.COM (Ellis Oliver Jones)
Newsgroups: comp.sys.apollo
Subject: Re: SR10: /usr/include/apollo/{base,time}.h and cc -A nansi ...
Keywords: SR10, Ansi C, non Ansi C, Apollo include files
Message-ID: <3f749e82.d5b2@apollo.COM>
Date: 4 Nov 88 02:21:00 GMT
References: <17508@shemp.CS.UCLA.EDU>
Reply-To: oj@canyon.UUCP (Ellis Oliver Jones)
Organization: Apollo Computer, Chelmsford, MA
Lines: 37

In article <17508@shemp.CS.UCLA.EDU> casey@CS.UCLA.EDU (Casey Leedom) writes:

>  The latest chapter in my endless quest to get X.V11R3 compiled on SR10....

"Endless" for hundreds of megabytes of 
source code that's been out a whole week?  Doesn't sound
endless to me.  Sounds like a week's work.   :-)  

>1. Apparently Ansi C defines the sequence "##" to be interpreted by the C
>   Preprocessor (cpp) as a null string which can be used to separate
>   macro references...
>   #define	foo(a, b)	a##b
>   The Apollo SR10 compiler totally barfs on this.

I've submitted an internal bug report on this point.  Thanks.
By the way /**/ works fine.  You'll probably get reasonable
response by submitting bug reports like this yourself, to the
Customer Services department.

>2. I was finally able to find something I could ifdef on to decide
>   whether to try to include /sys/ins/base.ins.c or
>   /usr/include/apollo/base.h - I used _BFMT__COFF.  

Yup.  Good choice.  It also works just fine if you use
__STDC__ .  Using __STDC___ to decide which header files you want
solves your next problem too.

>3. Continuing with Load.c, it turns out that base.h and time.h (and
>   probably several other files in /usr/include/apollo) have Ansi C
>   functional prototypes declared.  They don't ifdef the external function
>   declarations on __STDC__ even though it's available, properly
>   implemented by the Apollo compiler, and specifically for this purpose.

This shows up on many header files, such as <apollo/gpr.h>.  Some of them
could get awful big if we had to go both ways.

/Ollie Jones (speaking for myself, not necessarily for Apollo Computer, Inc.)