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Re: libusb and testing?


I (christophe) am the packager of gphoto2.
The bug you mention is not related with the NEW problem.
It is impossible to compile something working (gphoto2 or something
else) with the current libusb packages. This is not your fault at
all. I can't explain it but something goes wrong between what libusb.so
provides and what a freshly compiled program expects.
Everything in my machine is uptodated so I am pretty sure it is
reproductible and not specific to gphoto2 (but perhaps x86 specific).

With the same source and the same debian directory, the resulting
package is broken (give you a nice segfault) if you use the standard
libusb package and is perfectly working is you previously rebuild the
libusb package (whitout any modification).

I have traced the problem with gdb and it segfault when using the
usb_busses structure (a linked list).

I believe we need a recompiled libusb and to rebuild all depending
packages against this new package. If the problem is not in woody (libc
or gcc older, or ...) then we need to build all packages under woody.


On Mon, Apr 15, 2002 at 08:37:45PM -0500, Chris Cheney wrote:
> On Mon, Apr 15, 2002 at 07:20:35PM -0400, christophe barb? wrote:
> -snip-
> > It is currently not possible to compile a working gphoto2 in unstable
> > without previously recompiling libusb.
> > Otherwise it segfault early because usb_busses (from libusb.so) is not
> > understood by gphoto2.
> > I believe it is a mismatch between libusb and gphoto2 libc or the gcc
> > used.
> > As I understand it ALL libusb-depend packages are concerned.
> It appears the gphoto2 bug is fixed in sid? fwiw libusb is linked to
> glibc 2.2.4-4 which is the same as gphoto2.
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=140268&repeatmerged=yes
> -- 
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Christophe Barbé <christophe.barbe@ufies.org>
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