configure: WARNING: doxygen not found - will not generate any doxygen documentation (requires doxygen package) configure: WARNING: libusb-1.0 not found configure: WARNING: libraw1394 not found or too old. Please upgrade to 1.2.0 or a more recent version. basler.c: In function 'dc1394_basler_sff_feature_enable': basler.c:238:16: warning: comparison between 'dc1394switch_t' and 'dc1394bool_t' [-Wenum-compare] if (on_off != is_enabled) { ^ ERROR: libdc1394/2.2.6: Error in package_info() method, line 69 if tools.os_info.is_apple_os(self.settings.os): AttributeError: 'OSInfo' object has no attribute 'is_apple_os'