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Re: Compiling emacs-20.7 with gcc on m64k-next-nextstep4

From: Eli Zaretskii
Subject: Re: Compiling emacs-20.7 with gcc on m64k-next-nextstep4
Date: Thu, 14 Jun 2001 11:37:53 +0300 (IDT)

On Thu, 14 Jun 2001, Pascal Bourguignon wrote:

> I solved the problem by replacing macros by functions.

Thanks for the info.  I will put this into etc/PROBLEMS.

> As I  said, I think  that the  usage of macros  done in the  source of
> emacs  is   preposterous.   Most  of   them  should  be   replaced  by
> functions. Actually macros should almost never be used. They're just a
> kludge to paliate  deficiencies of C. No high  level language has such
> macros.

IIRC, in Emacs sources, macros are mostly used for efficiency, or to 
hide implementation of data types in case it will change in the future.

> The only place where  macros could be allowed, _was_ to define
> constants  (now we should  use "const  int cst=1;"),

Emacs still supports old compilers which don't know about `const'.

> Well, and  to
> protect  from   multiple  inclusions  of  headers,   since  RMS  can't
> understand  that  it's better  to  use  #import  (without outputing  a
> nagging warning) instead of #include...

"#import"?  Isn't that highly unportable?

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