From:	robert DOT van DOT der DOT boon AT nl DOT pwcglobal DOT com
Date:	Tue, 25 May 1999 10:45:10 +0200
Subject:	Re: SFN patches
To:	"Mark E. _" <snowball3 AT bigfoot DOT com>, djgpp-workers AT delorie DOT com
Message-id:	<8025677C.002FB9EA.00@intleursmtp10.uk.pw.com>
MIME-version:	1.0
X-Lotus-FromDomain:	C&L NL AT C&L INT AT INTL
Reply-To:	djgpp-workers AT delorie DOT com

>Have you seen the SFN patches for bash posted to djgpp-workers?

Just today (tuesday). Have been away for 4 days. Unbelievable what you
miss in such a short time [1]-).

>From what you've noted, I was thinking it would be a lot of work to make
>Bash SFN buildable.

That was not quite it. It were a couple of issues, not too much work... The
only
change that is hard to do right is the y.tab /y_tab problem. Other changes
are
merely changing a . to a _ in the right places and renaming some files.
Most has
already been done.

>But the changes posted to djgpp-workers don't
>seem too bad. If you have any comments about them, send me or the
>group your thoughts.

Some points of thought (some also pointed out by Eli)
- config.h:config.h-in in configure.in, instead of the workaround by
Martin. (This
  should be done anyway, IMHO.) Also apply this change to support/missing.
- There are still occurances of .distribution / .pacthlevel in
support/mkclone
- y.tab is also mentioned in support/missing, support/mkclone,
support/xenix-link.sh
- The examples directory is not SFN-clean. Do we want to fix that?
- '-o outputilename' is not a standard option. (SunOS-yacc on our uni
silently
ignores it, and still creates y.tab.c)

For this problem, I think there are 2 options (your votes please):
1) An autoconf macro that checks the output of yacc (I'll send a working
   example to the group this afternoon) + propagating this to the makefiles
   and support/missing, support/mkclone.
   In the c-files ifdef on DJGPP, before including y[_.]tab.h
   [note: when we want a fully automatic, always working, exotic version:
    a define in config.h for the root of y.tab (Something like
    Y_TAB_UNDERSCORED) and use this result:
   #ifdef Y_TAB_UNDERSCORED
   #include <y_tab.h>
   #else
   #include <y.tab.h>
   #endif
   But I have not implemented such a feature yet. And I guess never will
;-]
2) patch the source to include (for example) y-tab.h and use the following
rule
   in the makefile (other rules patched accordingly, of course. Just a
workaround
   for the lack of '-o' on the yacc of some systems):
y-tab.c y-tab.h: parse.y
#    -if test -f y-tab.h; then mv -f y-tab.h old-y-tab.h; fi
     $(YACC) -d $(srcdir)/parse.y
     -mv y.tab.c y-tab.c
     -mv y_tab.c y-tab.c
     -mv y.tab.h y-tab.h
     -mv y_tab.h y-tab.h
#    -if cmp -s old-y-tab.h y-tab.h; then mv old-y-tab.h y-tab.h; else cp
-p y-tab.h ${GRAM_H}; fi

Any comments, better solutions?

And by the way, what are the chances of getting all our
changes into the official distribution?

bye now,
 Robert

PS A side note: why are there so many empty directories in the source
distribution?
PS2 Sorry if my mail-prog (lotus notes) messed up this message,
    but I don't have another choice here.

[1] But I finally got to see metallica live ;-)
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