When libusb-1.0 is not found, libusb-0.1 will be tried. On BeOS and
OS2, nothing should have changed in terms of detection of USB support.
On all systems the --enable-libusb* flags are now ignored. Instead, the
--with-usb and --without-usb flags now control support. When neither is
given USB support will be enable if possible and disabled otherwise. If
--with-usb is requested but not possible, ./configure will fail. There
is no support to prefer libusb-0.1 over libusb-1.0.
Some parts of SANE used __FUNCTION__ while other parts used __func__.
Now, __func__ is used consistently throughout the SANE sources. This
fixes all occurrences of the following GCC warning:
warning: ISO C does not support '__FUNCTION__' predefined identifier
libusb on my Linux box is returning EACCES error when invalid
permissions exist. Modify open to translate that into
SANE_STATUS_ECCESS_DENIED since that error description is
used for this case.
Modify sanei_usb_test.c to not treat access denied or busy
error codes as real failures since its expected to occur on
boxes that USB device is already claimed by another driver
and if that device uses default root only permissions.
strcmp() does not protect against NULL pointers and is
crashing on at least OS X for the fake devices we are creating
by setting device_number to MAX value.
Add a fake empty string to prevent this.
Olaf Meeuwissen