Ok, let me explain. There are a bunch of web cameras (especially gpsca2-based ones). GPSCA2 is included in video4linux2 into the kernel and the drivers are working great. Reproducible: Always Steps to Reproduce: 1. Let's say you'd like to use your gpsca2-based webcam with Skype. 2. You already compiled the driver into the kernel or as a module. 3. You would have to use the following line to to run Skype with v4l1compat library loaded: LD_PRELOAD="/usr/lib32/libv4l/v4l1compat.so" skype or your gpsca2-based camera won't work with it. 4. But there is no such file becaus libv4l isn't built with EMULTILIB_PKG="true". Actual Results: When libv4l isn't built with EMULTILIB_PKG="true" there is a 64-bit library in "/usr/lib64/libv4l/v4l1compat.so" but as soon as Skype is a 32-bit application it does not work. Expected Results: I propose to add a use flag for amd64 build of libv4l to enable multilib support. I've already done this in my local overlay and my camera finally works with Skype. I'm attaching a proposed patch to the latest ebuild of libv4l in portage.
Created attachment 217702 [details, diff] proposed patch for the libv4l-0.6.1.ebuild
# emerge emul-linux-x86-medialibs app-emulation/emul-linux-x86-medialibs-20091231 (/usr/lib32/libv4l/v4l1compat.so)
