Following issues exist on MacOS X

1) POSIX.t /  _POSIX_OPEN_MAX is 16
   -- bug is reported to Apple , perhaps we should define our own _POSIX_OPEN_MAX to the cor
rect value?

2) libs/warning
error with regard to files opened in a certain mode, should we skip this test since we know 
it is failing?

3) op/stat
fails under UFS from Merlyn

4) libdb, nothing we can do, well, we can skip it if is old libdb and we build with threads 
since we get malloc failures

5) lacking patch from Apple to fix memory cleanup of unloaded images

6) threads
a) no _r functions, reported to Apple under investigation
b) building with threads ignore $cppflags, looking at this
c) lacking pthread_atfork, Apple knows about it
d) amazingly all thread tests seem to run without a problem, ofcourse there are none for loc
altime/gmtime

I plan to fix the cpp problem and then enable threading, test localtime/gmtime. I will also 
apply the patch from Apple to the
dynaloader.
Please advice on 1,2,3,4

Arthur