Not available on FreeBSD

Question

Not available on FreeBSD

Closed this issue 7 years ago · 5 comments

FreeBSD as a system version of libusb (/usr/lib/libusb.so):

The libusb library contains interfaces for directly managing a usb
device. The current implementation supports v1.0 of the libusb API.

Answer 1 · 2017-04-06T09:24:16.000Z

The usability of a system libusb library is checked while gem install. However the file is expected to be named libusb-1.0.so. You could add a symlink like

ln -s /usr/lib/libusb.so /usr/lib/libusb-1.0.so

as a workaround. But why is the file named libusb.so on FreeBSD?

Answer 2 · 2017-04-06T09:46:22.000Z

The libusb library has been integrated to the FreeBSD core distribution, and I guess as they don't plan to support more than one version, that just the way it has been called

(Workaround is working)

Answer 3 · 2017-04-06T09:53:50.000Z

The FreeBSD libusb shared object should be named libusb-1.0.so as well, according to this pkgconfig file. Am I wrong? I'm not familiar with FreeBSD.

Answer 4 · 2017-04-06T10:02:00.000Z

I am wrong. The pkgconfig file is named libusb-1.0 but the shared object is loaded per -lusb instead of -lusb-1.0 as on linux. So libusb for ruby should either try to open libusb.so as another alternative or use pkgconfig to detect the shared object file.

Answer 5 · 2017-04-06T10:02:06.000Z

I'm not familiar with pkgconfig, but I see in the file you mention: Libs: -L${libdir} -lusb, which means for me that libusb.so must be used for linking