Path: utzoo!utgpu!attcan!uunet!seismo!sundc!pitstop!sun!amdcad!ames!mailrus!ukma!tut.cis.ohio-state.edu!rutgers!ucla-cs!casey
From: casey@CS.UCLA.EDU
Newsgroups: comp.sys.apollo
Subject: SR10: /usr/include/apollo/{base,time}.h and cc -A nansi ...
Keywords: SR10, Ansi C, non Ansi C, Apollo include files
Message-ID: <17508@shemp.CS.UCLA.EDU>
Date: 3 Nov 88 00:55:39 GMT
Sender: news@CS.UCLA.EDU
Reply-To: casey@CS.UCLA.EDU (Casey Leedom)
Organization: UCLA Cognitive Science Program
Lines: 49


  The latest chapter in my endless quest to get X.V11R3 compiled on SR10.
(Note that my partner in crime will be submitting a amusing little
conversation he had with Apollo regarding the missing header files in
/usr/include/netinet.)

  Several bugs really:

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 and allow their expansions to be concatenated
   properly.  (Many older sources used the non-portable "/**/"
   equivalent.)  Ex:

   #define	foo(a, b)	a##b

   The Apollo SR10 compiler totally barfs on this.  Therefore I have to
   compile X.V11R3 with -A nansi.  If the "##" construct is truly a part
   of Ansi C, can we get an update to Apollo's cpp that handles it
   properly?

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.  I couldn't use
   __STDC__ for the above reason.  So I have:

   #ifdef apollo
   #ifdef _BFMT__COFF
   #include <apollo/base.h>
   #include <apollo/time.h>
   #else
   #include "/sys/ins/base.ins.c"
   #include "/sys/ins/time.ins.c"
   #endif
   ...
   #endif

   In X.V11R3/lib/Xaw/Load.c.  We really need something more along the
   lines of ``#ifdef SR10'' for this kind of thing however.

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.
   If people want, I will submit patches for these fixes.  Can we get
   these installed in the standard Apollo release?

Casey