On Monday, March 19, 2012 5:39:53 pm Doug Barton wrote:
> On 3/19/2012 12:37 PM, Dimitry Andric wrote:
> > It would be much nicer to be able to write:
> >
> > .if defined(FOO)
> > .if defined(BAR)
> > CFLAGS+= -DFOO_BAR
> > .endif
> > .endif
>
> Take a look at /usr/ports/Mk/bsd.port.mk for how this can be done.
Hmm, do yoo have a specific example? The bits in I see in bsd.port.mk suffer
from the limitation Dimitry raises, e.g.:
.if defined(OPTIONS)
# include OPTIONSFILE first if exists
. if exists(${OPTIONSFILE}) && !make(rmconfig)
. include "${OPTIONSFILE}"
. endif
. if exists(${OPTIONSFILE}.local)
. include "${OPTIONSFILE}.local"
. endif
WITHOUT:=
WITH:=
. if defined(OPTIONS)
REALOPTIONS=${OPTIONS:C/".*"//g}
. for O in ${REALOPTIONS}
RO:=${O}
. if ${RO:L} == off
WITHOUT:= ${WITHOUT} ${OPT}
. endif
. if ${RO:L} == on
WITH:= ${WITH} ${OPT}
. endif
OPT:=${RO}
. endfor
. endif
That is, all the lines that don't start with a . are not indented, and
even this indentation is rather horrible (it doesn't nest, and it
has the odd structure of 'if defined(OPTIONS) { if defined(OPTIONS) {} }'.
--
John Baldwin
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