gforth-patch

Known Problems with Gforth 0.6.2

(mostly about installation).

Build problem on Fedora Core 1 (or any system with exec-shield)

Symptoms

The build fails with

GFORTHD="./gforth-ditc -p .:." GFORTH="./gforth-ditc --die-on-signal -p 
.:. -i kernl32l.fi -e 3 exboot.fs startup.fs arch/386/asm.fs 
arch/386/disasm.fs" ./gforthmi gforth.fi  --die-on-signal -p ".:~+:." -i 
kernl32l.fi -e 3 exboot.fs startup.fs arch/386/asm.fs arch/386/disasm.fs
data offset=32D0E0
code
in file included from *the terminal*:0
*evaluated string*:-1: images produced by different engines
...

Fix

Apply the following patch:

Index: comp-i.fs
===================================================================
RCS file: /usr/local/lib/cvs-repository/src-master/gforth/comp-i.fs,v
retrieving revision 1.14
diff -u -r1.14 comp-i.fs
--- comp-i.fs	2003/08/25 14:17:43	1.14
+++ comp-i.fs	2004/03/10 16:26:46
@@ -43,7 +43,7 @@
     if
 	." : images have the same base address; producing only a data-relocatable  image" cr
     else
-	offset abs expected-offset <> abort" images produced by different  engines"
+	\ offset abs expected-offset <> abort" images produced by different  engines"
 	."  offset=" offset . cr
 	0 image1 i-field + ! 0 image2 i-field + !
     endif

Explanation

Data allocation varies more between the runs than it does without exec-shield.