u_intX_t vs. uintX_t

[Steven Drake <sbd%NetBSD.org@localhost>]

This is to let everyone know about this issue I've just come across, to 
do with the u_intX_t and uintX_t type groups (where X is 8, 16, 32, or 64).

Different OS's define the two groups (strangely) in different places:

+ Linux and NetBSD have (since before C99) made available the u_intX_t
  group from <sys/types.h>

After C99:
  
+ NetBSD has made uintX_t group available from both <sys/types.h> and 
  <stdint.h>.

+ Linux has made the uintX_t group available from <stdint.h> (but _not_
  <sys/types.h>).

+ SunOS have made the uintX_t group available from <sys/types.h> 
  and <stdint.h>. (well I'm assuming it does.)

If you can't see the problem, may developers include <sys/types.h> and use
the u_intX_t group, which doesn't means a package won't build on SunOS,
simply changing them to uintX_t types means it now build on SunOS but 
not on Linux anymore!

-- 
Steven