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From: telfeyan@dip.eecs.umich.edu (Roland Telfeyan)
Newsgroups: comp.sys.next,gnu.gcc
Subject: Re: C compilers for NEXT
Summary: clarifications
Keywords: C, compiler, NEXT,MS-Windows
Message-ID: <1458@zipeecs.umich.edu>
Date: 15 Feb 90 09:24:55 GMT
References: <642@cscnj.csc.COM> <25BCC24E.10018@paris.ics.uci.edu>
Sender: news@zip.eecs.umich.edu
Reply-To: roland@camerata.cpat.umich.edu
Organization: University of Michigan CPAT, Ann Arbor, MI
Lines: 33

In article <25BCC24E.10018@paris.ics.uci.edu> rfg@ics.uci.edu (Ron Guilmette) writes:
>Sounds entirely bizzare.  I'm not a `graphical interface' kinda guy, so I
>should not really be commenting (because I don't know squat about MS-Windows
>or about the windowing system on the NeXT... which I believe is X11) but

Please!  Why are you writing in a NeXT group if you don't even know what
the screen looks like!  

>One footnote.  I have recently learned that the NeXT system has become
>incompatible with current versions of the GNU C compiler.
>
>The problem is that NeXT invented (or borrowed) a new type of preprocessor
>directive that GCC doesn't know how to deal with (and never will).
>
>The directive is called "#import" and according to reports I have recieved,
>this directive is being used within (at least some of) NeXT's "system"
>include files (perhaps many of them).  You know... the files that you
>often have to include in typical C programs like <sys/file.h>, etc.

Please!

The #include directive is specific to Objective-C and only appears in
appkit, musickit, and soundkit files, NOT any standard Unix files like
sys/file.h!  The cc on the NeXT is totally ANSI and will compile any
vanilla C programs that you can compile in gcc on a Sun, for example.
This is a hidden beauty of the NeXT object-oriented C language,
Objective-C: that it is a PROPER SUPERSET of C, unlike
... (you're going to yell at me for comparing again) C++ (ahh, I said
it).

Roland Telfeyan
Center for Performing Arts & Technology
University of Michigan