Date: Wed, 5 Jul 2000 09:22:36 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
X-Sender: eliz AT is
To: Frank Donahoe <fdonahoe AT wilkes1 DOT wilkes DOT edu>
cc: DJGPP List <djgpp AT delorie DOT com>
Subject: Re: building flex 2.5.4
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On Tue, 4 Jul 2000, Frank Donahoe wrote:

> The failure of the build process with LFN enabled is because an
> intermediate file `y.tab.c' is generated while the supplied Makefile
> expects to see `y_tab.c'.

What version of Bison do you have installed?  I'm guessing that this
problem appeared because the DJGPP port of the latest Bison produces
Unix-style y.tab.c files under LFN, whereas the Bison port used for
the original Flex build always produced y_tab.c.

> Expect to use the supplied source under plain DOS or when LFN are
> disabled.

I think this is not a good idea.  A better one would be to modify the
Makefile to always DTRT.  For example:

    parse.c: parse.y
	    $(YACC) -d $(srcdir)/parse.y
+	    @if exist y.tab.c ren y.tab.c y_tab.c
+	    @if exist y.tab.h ren y.tab.h y_tab.h
	    @sed '/extern char.*malloc/d' <y_tab.c >parse.tmp
	    @mv parse.tmp parse.c
	    @mv y_tab.h parse.h
	    @rm -f y_tab.c

The two lines marked with a plus sign + at the left margin are
additions to the distributed Makefile.  The file djgpp.sed should be
changed accordingly, to produce these lines when configur.bat edits
Makefile.in into Makefile.