Re: ruby 1.8.4 preview2

From: Nobu


>
> Or:
>
>   $ bison-2.1 -o parse.c parse.y && sed -i '/^    ;$/d' parse.c


+1

If I'm following correctly, 1.9 requires bison (for racc) but 1.8.4
can still use byacc (which is the default (YACC = byacc) in Makefile.sub).
- BTW, I just tried with byacc (to check) and there's no problem.

I (and Curt, probably) had errors from the prepared parse.c in the
distribution which has the bad line.

#-----------

For the case when  YACC = bison:

As my/(all?) Makefile.sub already uses sed, maybe your fix would fit inside?

   .y.c:
    $(YACC) $(YFLAGS) $(<:\=/)
    sed -e  ... y.tab.c > $(@F)
    @del y.tab.c


Single quotes don't work for me.
These are OK:

    sed -e "/^    ;$/d" ifile > ofile
OR:
    sed -e "/^yyparse ()$/{;n;/^ \+;$/d;}" ifile > ofile

I don't know sed, but the second is an attempt to delete the specific
offending line by checking the previous line, moving to the next
and deleting if it matches the empty line.
I guess you won't need it.
What might be interesting is that it took me about 3 hours to work that one line :(


daz