James Carlson <[EMAIL PROTECTED]> wrote:
> Joerg Schilling writes:
> > Thank you... but could you explain why:
> >
> > #pragma ident "xxx <tab> yyy" is requiered?
> >
> > #pragma ident is not accepted by GCC and Sun C converts "xxx <tab> yyy"
> > to "xxx \t yyy" which causes what(1) to stop output after "xxx ".
>
> I'm not sure what you're talking about here, as most things produced
> in ON have the release info inserted. But I'll defer.
If you don't know what I am talking about, I did compile a file
with
#pragma ident "%Z%%M% %I% %E% Copyright 2007 J. Schilling"
using gcc -Wall:
s.c:1: warning: ignoring #pragma ident
Now I use this file:
#pragma ident "@(#)s.c 1.1 07/01/14 Copyright 2007 J. Schilling"
and compile with cc -c
If you then check what s.o, you get:
s.o:
s.c 1.1 07/01/14 Copyright 2007 J. Schilling
Now I compile the same file using the optimizer.....
and here you get:
s.o:
s.c
With the first case, mcs -p s.o:
s.o:
@(#)s.c 1.2 07/01/14 Copyright 2007 J. Schilling
With cc -c -O, you get:
s.o:
@(#)s.c\t1.2 07/01/14 Copyright 2007 J. Schilling
Do you see the \t instead of a TAB?
what(1) stops printing a "@(#)... string at '"', '\\', '>', and '\n'.
We either need to think about using tab chars in ID strings or
call this a compiler bug that needs fixing.
Jörg
--
EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
[EMAIL PROTECTED] (uni)
[EMAIL PROTECTED] (work) Blog: http://schily.blogspot.com/
URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily
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