Build updates for OS/2 EMX port
diff --git a/PC/os2emx/pyconfig.h b/PC/os2emx/pyconfig.h
index 3d6e5f1..1039d3d 100644
--- a/PC/os2emx/pyconfig.h
+++ b/PC/os2emx/pyconfig.h
@@ -46,6 +46,7 @@
 #define TCPIPV4		1
 #define USE_SOCKET	1
 #define socklen_t	int
+#define FD_SETSIZE	1024
 
 /* enable the Python object allocator */
 #define	WITH_PYMALLOC	1
@@ -61,6 +62,9 @@
 #define PY_UNICODE_TYPE	wchar_t
 #define Py_UNICODE_SIZE SIZEOF_SHORT
 
+/* EMX defines ssize_t */
+#define HAVE_SSIZE_T	1
+
 /* system capabilities */
 #define HAVE_TTYNAME	1
 #define HAVE_WAIT	1
@@ -137,6 +141,9 @@
 /* The number of bytes in a void *. */
 #define SIZEOF_VOID_P 4
 
+/* The number of bytes in a size_t. */
+#define SIZEOF_SIZE_T 4
+
 /* Define if you have the alarm function. */
 #define HAVE_ALARM 1