On Jan 19, 2009, at 18:16, Shreevatsa R wrote:
On Mon, Jan 19, 2009 at 6:26 PM, Ryan Schmidt wrote:
There are software packages out there, for which we have ports in
MacPorts,
that will, in an attempt to find the dependent libraries they
need, always
look in /opt/local and /sw to find them. So if you have the same
library
installed with both Fink and MacPorts, it's possible a MacPorts
port will
link with the library from Fink, or the other way around. To
prevent that,
we would have to know which software packages do this and patch
them in
MacPorts to not do that. Since we do not know which software
packages do
this, the safe course of action is to explain that it is not
supported to
use Fink and MacPorts at the same time. "Not supported" means you
can still
do it, but we will not necessarily help you with problems you
encounter as a
result.
I understand; that makes sense. It seems the same as the /usr/local
problem again, with packages not being prevented from looking in
places they shouldn't be looking, and potentially causing problems as
a result. I guess it's worth investigating chroot and -nostdinc. The
latter has been around since gcc 2.7.2.2 at least, which is more than
10 years old: it should be safe to use.
[Technically, it should be considered a bug if a port isn't patched to
prevent its looking in /sw. Some ports do handle this, e.g.
http://trac.macports.org/browser/trunk/dports/net/pidgin/files/
patch-configure.ac.diff
:-)]
Probably. And you could file bugs against ports as you find them. But
we might never find them all.
Wrt the original question: I think MacPorts never installs anything
outside /opt/local, so while a existing Fink installation can result
in broken MacPorts ports, using MacPorts will not affect the
functioning Fink installation itself. Is this correct?
I think that should be true, but of course I haven't tried it. But if
a MacPorts port ever does write outside its intended area, it will
print an error message to that effect.
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