"locale"

real regerror

Try to improve code size and quality with __restrict__.

FPU exception handling (for mawk)

res_mkquery should not assume op is QUERY

logging.

EINTR handling (*puke*).  What about EAGAIN?

bizarre printf bullshit: "%8.7lx",0xfefe should yield " 000fefe"?!

gethost/netent -> parselib

Look at qsort (the make test suite exhibits the worst case)

Make __dtostr do scientific notation.
fix %g in printf.  They are more or less completely b0rken (in
  particular rounding the last digit does not work).

qmail-queue dumps core since we added vfork.  Editing fork.h to #define
  vfork to fork works.  What happens here?

use TCP if buf[2]&2 is non-zero in DNS answers.

bsearch returns pointers outside the array?!