Re: Lemon on a clean build

[Gilbert Ramirez <gram () alumni rice edu>]

On a "zero-touch re-build" (what I call a re-build after having changed
nothing), I see these steps being performed (in different directories):

1)
  PERL     svnversion.h

2)
  LEMON    grammar.h
  CC     grammar.lo
  CCLD   libdfilter_generated.la
  CCLD   libdfilter.la

3)

  LEMON    dtd_grammar.h
  CC     dtd_grammar.lo
  CCLD   libwireshark_generated.la
  CCLD   libwireshark.la


4)
  LEMON    mate_grammar.h
  CC     mate_grammar.lo
  CCLD   mate.la


5)
  PERL     svnversion.h
(yes, once again)

6)

  CCLD   tshark
  CCLD   dftest
  CCLD   rawshark
(expected, if a few *.lo's were re-built)

If I chdir to epan/dfilter, and run a 0-touch rebuild ,twice, I see 2
different outputs:

$~/prj/wireshark-trunk/epan/dfilter$ make
  LEMON    grammar.h

$ ~/prj/wireshark-trunk/epan/dfilter$ make
  LEMON    grammar.h
  CC     grammar.lo
  CCLD   libdfilter_generated.la
  CCLD   libdfilter.la

So, yes, something is wrong with these dependencies. I'll take a look.

Gilbert





On Tue, Feb 12, 2013 at 7:58 AM, Evan Huus <eapache () gmail com> wrote:

> Sorry, so I mis-used the word 'clean' in this context.
>
> These lines are popping up after running make twice in a row, i.e. the
> first time it builds, the second time it should do nothing at all
> (since nothing's changed) but it's still running lemon for some
> reason.
>
> This happens on a completely fresh checkout of trunk.
>
> On Tue, Feb 12, 2013 at 1:26 AM, Guy Harris <guy () alum mit edu> wrote:
> > On Feb 11, 2013, at 8:11 PM, Evan Huus <eapache () gmail com> wrote:
> >
> > > Ever since the recent Makefile changes, running a 'clean' make (i.e.
> > > no changes at all since the last build) now results in a couple of
> > > calls to lemon:
> > >
> > > LEMON    grammar.h
> > > LEMON    dtd_grammar.h
> > > LEMON    mate_grammar.h
> > >
> > > Is this intentional? Or has it always done this, and it's just more
> > > noticeable with quiet-build enabled?
> >
> > Well, those calls to Lemon are either bogus or mislabeled in Make's
> output, given that what it *should* say is something such as
> >         LEMON   grammar.lemon
> >         LEMON   dtd_grammar.lemon
> >         LEMON   mate_grammar.lemon
> >
> > "make clean" shouldn't be removing the resulting .c or .h files,
> although "make distclean" should, given that we're not distributing the
> results of Lemon any more.
> >
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