mod_perl build on windows.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@755 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_platform.h

@@ -78,10 +78,12 @@ typedef unsigned long	in_addr_t;
 #endif
 #define PACKED
 #include <io.h>
+#ifndef WIN32IOP_H //macro collision with perl
 #define write _write
 #define open _open
 #define close _close
 #define read _read
+#endif
 #else
 /* packed attribute */
 #ifndef PACKED