Add new macro as shorthand for MS VC and Borland C++:

+ #if   defined(_MSC_VER) || defined(__BORLANDC__)
+ #define       WIN32_CLIENT_ONLY
+ #endif

src/include/port.h

@@ -6,16 +6,17 @@
  * Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/port.h,v 1.62 2004/09/27 20:37:20 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/port.h,v 1.63 2004/09/27 23:24:37 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
 
-#if !defined(_MSC_VER) && !defined(__BORLANDC__)
+#ifndef WIN32_CLIENT_ONLY
 /* for thread.c */
 #include <pwd.h>
 #include <netdb.h>
 #endif
+
 #include <ctype.h>
 
 /* non-blocking */
@@ -169,7 +170,7 @@ extern int	pgunlink(const char *path);
 extern int	pgsymlink(const char *oldpath, const char *newpath);
 
 /* Include this first so later includes don't see these defines */
-#ifdef _MSC_VER
+#ifdef WIN32_CLIENT_ONLY
 #include <io.h>
 #endif
 
@@ -183,7 +184,7 @@ extern bool rmtree(char *path, bool rmtopdir);
 #ifdef WIN32
 
 /* open() replacement to allow delete of held files */
-#if !defined(_MSC_VER) && !defined(__BORLANDC__)
+#ifndef WIN32_CLIENT_ONLY
 extern int	win32_open(const char *, int,...);
 
 #define		open(a,b,...)	win32_open(a,b,##__VA_ARGS__)
@@ -242,7 +243,7 @@ extern double rint(double x);
 #endif
 
 #ifndef HAVE_INET_ATON
-#if !defined(_MSC_VER) && !defined(__BORLANDC__)
+#ifndef WIN32_CLIENT_ONLY
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #endif