* contrib/dot/pp.prg
* Changed PP_Main() to STATIC Main() to have a Main procedure for build that require a MAIN yet avoid conflict if linked with a prg including a MAIN.
* contrib/dot/pp_harb.ch
* Wrapped a Windows specific code within #ifdef WIN.
/* Thanks to input from Toma Zupan. */
* source/pp/ppcore.c
! Added a BOOL 2nd parameter to isExpres() to flag a LIST MP. This fixes problem with matching a list exp with an empty component.