This is used if USE_KLIBC=true to find the kernel include
directory that klibc needs to build against. This must be set
if you are not building udev while running a 2.6 kernel.
+ EXTRAS
+ if set, will build the "extra" helper programs as specified
+ as listed (see below for an example.)
So, if you want to build udev using klibc with debugging messages, you
would do:
make USE_KLIBC=true DEBUG=true
+ If you want to build the udev helper program cdrom_id and scsi_id you
+ would do:
+ make EXTRAS="extras/cdrom_id extras/scsi_id"
+
udev will follow the setting of the debug level in udev.conf. Adapt this
value to see the debug in syslog.