Ensure port is syntaxed before input and output.

diff --git a/src/runtime/runtime.sf b/src/runtime/runtime.sf
index 6cb2e11de2c1804bec4e274067d73768a5934b63..09d7a8aa2f3353ae92fdca99275013c06525ffd8 100644 (file)
--- a/src/runtime/runtime.sf
+++ b/src/runtime/runtime.sf
@@ -31,6 +31,8 @@ USA.
   (sf-conditionally "graphics")
   (sf-conditionally "infstr")
   (sf-conditionally "os2winp")
+
+  (sf-conditionally "port")
   (sf-directory "."))
 
 ;; Guarantee that the package modeller is loaded.  load-option ensures