Cygwin on NT and values.h

[Tim Prince]

>I need to use MAXDOUBLE.

Looks like something which code which had received maintenance some time in the
last 10 years would look for in <float.h>.

You should find a program enquire.c in your gcc source distribution which may
be used to check the <float.h> which comes with cygwin.  Read the instructions
in the comments.  This program was used as part of the gcc build process at one
time.
Tim Prince
tprince@computer.org