portability somewhat:
- consistently use POSIX uint{8,16,32,64}_t throughout the code.
- asssume for now that the compiler supports ULL as suffix
- use AC_TYPE_UINT{8,16,32,64}_T instead of bits.c to compute
possible replacement types.
Bump to 20070703. Tested by Thorsten Glaser on Interix and tnn@ on
Solaris.
tiger instead. Also kill bogus NULL pointer handling in both algorithms:
passing null pointers as buffers (when len != 0) or context is a serious
programming error and should result in a segfault. Bump version to
20060826. OK agc@
