On Wed, 29 Nov 2000, Greg Stein wrote:
> On Tue, Nov 28, 2000 at 09:31:54PM -0000, [EMAIL PROTECTED] wrote:
> > rbb 00/11/28 13:31:53
> >
> > Modified: src acinclude.m4 configure.in
> > . apr_common.m4 hints.m4
> > Added: src hints.m4
> > Log:
> > Split the hints file into two files, one in APR and one in Apache. The
> > APR
> > hints file just sets build variables, the Apache hints file just sets
> > Apache variables. This is meant to clean up parts of APR, so that they
> > don't include Apache information.
> >...
> > --- apr_common.m4 2000/11/02 05:01:08 1.7
> > +++ apr_common.m4 2000/11/28 21:31:52 1.8
> >...
> > +dnl
> > +dnl APR_DOEXTRA
> > +dnl
> > +dnl Handle the use of EXTRA_* variables.
> > +dnl Basically, EXTRA_* vars are added to the
> > +dnl current settings of their "parents". We
> > +dnl can expand as needed. This is ugly
> > +dnl
> > +AC_DEFUN(APR_DOEXTRA, [
> > + for i in CFLAGS LDFLAGS LIBS
> > + do
> > + eval APR_TMP=\$EXTRA_$i
> > + if test -n "$APR_TMP"; then
> > + eval $i=\"\$$i $APR_TMP\"
> > + eval export $i
> > + eval unset EXTRA_${i}
> > + eval export EXTRA_${i}
> > + fi
> > + done
> > +])
>
> I see that this came from apr/hints.m4, but I don't understand what it is
> really doing here. What is this extra magic?
>
> AFAIK, all we need to do is set the variables, and that is that. No fancy
> export or anything.
Unfortunately, as Jim found when he first did this stuff, Autoconf doesn't
use the EXTRA_* variables, so this is a bit of a hack.
Ryan
_______________________________________________________________________________
Ryan Bloom [EMAIL PROTECTED]
406 29th St.
San Francisco, CA 94131
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