[klibc] ARM/Thumb updates and some other minor tweaks

[H. Peter Anvin]

Greg KH wrote:
>>+/*
>>+ * __kernel_timer_t is not defined in arm kernel 2.4.21-rmk2 which causes
>>+ * arm klibc builds to fail. timer_t doesn't seem to be used within klibc
>>+ * so commenting out the typedef seems like a valid fix ?
>>+ */
>>+//typedef __kernel_timer_t	timer_t;
> 
> 
> What about userspace programs, using klibc that need access to timer_t?
> 
> struct timespec needs this, right?
> 

Also, building klibc on 2.4 is iffy at best, especially on a version 
which is several versions downrev.

Submit a kernel bugfix instead.

	-hpa