On 12 Nov, Alan McKinnon wrote: > On Thursday 12 November 2009 13:05:29 Helmut Jarausch wrote: >> Sorry if this is FAQ but I couldn't find the answer. >> E.g. I have to versions of dev-libs/libusb installed, one in slot 0 and >> the other one in slot 1. >> For testing purposes I'd like to make the slot-0 version 'effective'. >> How can I do that (other than unmerging the slot-1 version) >> ASAIK, eselect cannot do this. > > > Why do you want to do that? The package contains only libs, and apps that > link > to it already know which on they want. > > I suppose you could tinker with LDPATH but I think there's a basic > misunderstanding of what the package is >
The reason is the following bug. To use an old printer (no USB connector) I've purchased a USB-to-parallel adapater (since some software like VirtualBox cannot handle the parallel port). [my bug report 291596] : When I use 'add printer' from the cups web interface this "printer" isn't shown and I get the following entry in /var/log/messages: Nov 2 16:19:41 numa-be kernel: usb[9750]: segfault at 7fff14c30000 ip 00007f8d3a50dc0b sp 00007fff14c2ced8 error 4 in libc-2.10.1.so[7f8d3a490000+14d000] I have started cupsd in foreground but it doesn't show any errors. Where does this error come from? ----- Robin Johnson replied Did this work on: - a previous kernel? - the libusb-0* series? - ever (what changed since then)? Therefore I'd like to test with the older libusb. Many thanks for your help, Helmut. -- Helmut Jarausch Lehrstuhl fuer Numerische Mathematik RWTH - Aachen University D 52056 Aachen, Germany
