Replace inline and always_inline with __inline__
and __always_inline__ in delay.h.in and delay_basic.h

git-svn-id: http://svn.savannah.nongnu.org/svn/avr-libc/trunk@2453 1084037a-409f-4a99-8160-1a4b3577d4c1
Generalize wdt_enable and wdt_disable by branching on
arch and addressability of _WD_CONTROL_REG, instead of device name.

git-svn-id: http://svn.savannah.nongnu.org/svn/avr-libc/trunk@2454 1084037a-409f-4a99-8160-1a4b3577d4c1