1-line fix to port/thread.c for compiling libpq with Borland C

Below please find a tiny patch to PostgreSQL-7.4.1 src/port/thread.c that I
found was necessary to compile libpq on Windows using Borland C++ Builder.
The patch causes the the WIN32 code to be included, and <pwd.h> skipped, if
under either WIN32 compiler, rather than just with MSVC.
(Alternative is to just use "#if defined(WIN32)", which works for me, but
I don't know if that would be safe.)


*** src/port/thread.c.orig    Mon Nov 24 08:11:27 2003
--- src/port/thread.c    Tue Feb 24 19:19:35 2004
***************
*** 16,22 ****

  #include <sys/types.h>
  #include <errno.h>
! #if defined(WIN32) && defined(_MSC_VER)
  #undef ERROR
  #else
  #include <pwd.h>
--- 16,22 ----

  #include <sys/types.h>
  #include <errno.h>
! #if defined(WIN32) && (defined(_MSC_VER) || defined(__BORLANDC__))
  #undef ERROR
  #else
  #include <pwd.h>