*) libcrypt fails a number of the crypt tests in test/crypt
*) locale support if currently _very_ incomplete
*) No support for wide char (i.e. everything in wchar.h,
    everything in wctype.h)
*) uClibc timezone support is mostly stubbed out
*) gdb friendly libpthread debug support is not implemented 
*) Not all architectures support shared libraries 
*) Not all functions have been fully audited for thread-safety
*) stpncpy() flunks test 3,5 and 7 on powerpc. 
*) The syscall() function is missing


Will Not Fix
---------------
*) wordexp is not implemented.  Nobody uses it, and it is huge.