--- scp.c.orig	Sun Mar 25 11:57:18 2012
+++ scp.c	Fri Feb 19 07:08:06 2021
@@ -269,7 +269,11 @@
 /* The per-simulator init routine is a weak global that defaults to NULL
    The other per-simulator pointers can be overrriden by the init routine */
 
-void (*sim_vm_init) (void);
+#ifdef HAVE_VM_INIT
+extern void (*sim_vm_init) (void);
+#else
+void (*sim_vm_init) (void) = NULL;
+#endif
 char* (*sim_vm_read) (char *ptr, int32 size, FILE *stream) = NULL;
 void (*sim_vm_post) (t_bool from_scp) = NULL;
 CTAB *sim_vm_cmd = NULL;
@@ -692,8 +696,10 @@
         cptr = (*sim_vm_read) (cbuf, CBUFSIZE, stdin);
         }
     else cptr = read_line_p ("sim> ", cbuf, CBUFSIZE, stdin);/* read with prmopt*/
-    if (cptr == NULL)                                   /* ignore EOF */
+    if (cptr == NULL) {                                 /* ignore EOF */
+        putchar('\n');
         continue;
+    }
     if (*cptr == 0)                                     /* ignore blank */
         continue;
     if (sim_log)                                        /* log cmd */