The previously mentioned date and time bug on OS X still 
seems to be around in 4.0.6. I've tried updating the 
datetime.c file using the patch I received from Trevis but 
this resulted in a series of errors at the end of the 
'make' process. The file I was using as a guide can be 
found at "http://homepage.mac.com/sboms/FileSharing.html". 

For reference, here's my configure line:

./configure \
   --with-xml \
   --with-zlib \
   --with-apxs=/usr/sbin/apxs \
   --with-mysql=/usr/local/mysql

PHP itself compiles fine on OS X 10.0.4, but the php_mktime 
bug still exists.

If anyone has a fix, I'd be most appreciative.