Changes for dynamic linking under NT
diff --git a/Include/sysmodule.h b/Include/sysmodule.h
index 93e3a51..e48e4a3 100644
--- a/Include/sysmodule.h
+++ b/Include/sysmodule.h
@@ -35,7 +35,7 @@
 FILE *sysgetfile PROTO((char *, FILE *));
 void initsys PROTO((void));
 
-extern object *sys_trace, *sys_profile;
+extern DL_IMPORT object *sys_trace, *sys_profile;
 
 #ifdef __cplusplus
 }