<AWT Dev> RFR: Allow using a system installed libpng
gnu.andrew at redhat.com
Thu Feb 6 08:09:08 PST 2014
----- Original Message -----
> * Andrew Hughes <gnu.andrew at redhat.com> [2014-02-04 19:26]:
> > > On 2014-02-03 18:43, Omair Majid wrote:
> > > > The following webrevs modify the build system to allow building against
> > > > the system-installed copy of libpng as well as using the bundled copy
> > > > of
> > > > libpng
> > > >
> > > > ROOT: http://cr.openjdk.java.net/~omajid/webrevs/system-libpng/01/
> > > > JDK: http://cr.openjdk.java.net/~omajid/webrevs/system-libpng/01-jdk/
> > > >
> > > > A new configure option `--with-libpng` is introduced which defaults to
> > > > `bundled` but can be set to `system` to use the system-installed copy
> > > > of
> > > > libpng.
> > In this respect, why does this not just use AC_ARG_ENABLE as there are only
> > two options here (system libpng or bundled libpng)?
> > Also, this patch hardcodes the libpng cflags and ldflags when these should
> > be obtained from pkg-config. This is how these values are obtained in
> > IcedTea
> > and using this patch would thus be a regression.
> The answer to both of these is the same: I followed how the existing code
> handles zlib. If this needs fixing, then it needs to be fixed in the
> other cases (zlib and giflib) too.
Yes (well, giflib doesn't have pkg-config but otherwise...). We said this last
time this work was discussed, so I'm a little surprised to see this patch being
posted in the same form again.
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