Date: Sun, 21 Jan 2001 15:35:16 -0800 From: "Crist J. Clark" <cjclark@reflexnet.net> To: Gustavo Vieira Goncalves Coelho Rios <gustavo@ifour.com.br> Cc: jim@geekhouse.net, Matthew Emmerton <matt@gsicomp.on.ca>, questions@FreeBSD.ORG Subject: Re: Why make complains ? Message-ID: <20010121153516.Y10761@rfx-216-196-73-168.users.reflex> In-Reply-To: <3A6B2698.50E20D72@ifour.com.br>; from gustavo@ifour.com.br on Sun, Jan 21, 2001 at 04:12:40PM -0200 References: <3A6A6704.F817CEE4@ifour.com.br> <005201c08366$21f34db0$1200a8c0@gsicomp.on.ca> <3A6A6BB9.AE55918@ifour.com.br> <20010121004620.C2687@envy.geekhouse.net> <3A6B2698.50E20D72@ifour.com.br>
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On Sun, Jan 21, 2001 at 04:12:40PM -0200, Gustavo Vieira Goncalves Coelho Rios wrote:
> Jim Mock wrote:
>
> > > Thanks for your help, but i think that it does not solve the problem.
> > >
> > > DEP_EXT = FCGI_IO
> > >
> > > FCGI_IO ?= /usr/local/include
> > >
> > > main :
> > > .for _DEP_EXT in ${DEP_EXT}
> > > .if (${_DEP_EXT} == FCGI_IO)
> > > echo ${_DEP_EXT}
> > > .endif
> > > .endfor
> > >
> > > And now:
> > >
> > > grios@etosha$ make
> > > "Makefile", line 1: Malformed conditional ((FCGI_IO == FCGI_IO))
> > > "Makefile", line 1: Missing dependency operator
> >
> > Erm, read this and then look at your first line. Do you see the
> > difference?
> >
> > - jim
>
> Sorry gentleman,
>
> But this is my first time using make, so i have no ideia about the
> problem,
> May you give the solution.
What I think GVGCR is saying is why does the above fail when,
DEP_EXT = FCGI_IO
FCGI_IO ?= /usr/local/include
main :
#.for _DEP_EXT in ${DEP_EXT}
#.if (${_DEP_EXT} == FCGI_IO)
.if ${DEP_EXT} == FCGI_IO
echo ${_DEP_EXT}
.endif
#.endfor
Would work more like he would expect.
I think understand what is happening. The ${_DEP_EXT} is getting
evaluated "too soon." I am not enough of a BSD-make guru to know
exactly how to handle this. I think,
DEP_EXT = FCGI_IO
FCGI_IO ?= /usr/local/include
.for _DEP_EXT in ${DEP_EXT}
HOLD=${_DEP_EXT}
.if ${HOLD} == FCGI_IO
main :
echo ${_DEP_EXT}
.endif
.endfor
Might be a klugy way to get around this. That is not well tested. Note
the move of the 'main :' target. That was not just for kicks.
--
Crist J. Clark cjclark@alum.mit.edu
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