--- gforth/comp-i.fs	2010/05/12 20:13:33	1.20
+++ gforth/comp-i.fs	2010/09/05 18:04:17	1.22
@@ -24,9 +24,6 @@ s" address-unit-bits" environment? drop
     \ write a cell to the file
     w cell file-id write-file ;
 
-: th ( addr1 n -- addr2 )
-    cells + ;
-
 : bset ( bmask c-addr -- )
     tuck c@ or swap c! ; 
 
@@ -98,7 +95,7 @@ s" address-unit-bits" environment? drop
 
 : comp-image ( "image-file1" "image-file2" "new-image" -- )
     name slurp-file { image1 size1 }
-    image1 size1 s" Gforth3" search 0= abort" not a Gforth image"
+    image1 size1 s" Gforth4" search 0= abort" not a Gforth image"
     drop 8 + image1 - { header-offset }
     size1 aligned size1 <> abort" unaligned image size"
     image1 header-offset + 2 cells + @ header-offset + size1 <> abort" header gives wrong size"