autoconf hackery for CTypes{,ISO}

/tmp/msg

Sven's first autoheader commandment: Don't change config.h.in manually...!
(Why is mk/config.h.in in the repository? configure is not, either.)

Add checks for readline library (as opposed to headers).

added HAVE_WIN32_DLL_SUPPORT

Added `timezone' config test.

- backout rev 1.11 (spammed rev 1.10)
- slide ghc-4-01 tag forward

Move 4.01 onto the main trunk.

Added {TEXT,DATA}_SECTION_MARKER_DECL

Added tests required by Hugs

sync with recent changes to configure.in.

Add feature test for O_BINARY

Added long long feature test; macro namespace cleanup

- remove uint, ulong, ullong (we're using nat and lnat now)
- sort entries

add LEADING_UNDERSCORE.

- remove breakage introduced by ADR
 - add ALIGNMENT_LONG

Added alignment tests

Added more feature tests