Change to work under ash.

configure

 #!/bin/sh
 
 # Zope configure script
-# $Id: configure,v 1.11 2003/06/21 13:46:38 chrism Exp $
-# $Revision: 1.11 $
+# $Id: configure,v 1.12 2003/06/24 20:22:39 chrism Exp $
+# $Revision: 1.12 $
 
 #####################################################################
 #                    BEGIN EDITABLE PARAMETERS                      #
@@ -76,7 +76,7 @@ get_python() {
                 CMD="import string,sys;a=string.split(sys.version)[0]"
 		# Strip trailing + from version number
 		CMD="$CMD;a=(a[-1]=='+')and(a[:-1])or(a);print a"
-                VERSION=`$FULL -c "$CMD"`
+                VERSION=`"$FULL" -c "$CMD"`
                 out "  Python version $VERSION found at $FULL"
                 if [ "$VERSION" = "$TARGET" ]; then
                     FOUND="$FULL"
@@ -85,9 +85,9 @@ get_python() {
                 else
                     i=1;
                     for ACC in $ACCEPTABLE; do
-                        i=$(($i+1))
+                        i=`expr $i + 1`
 			for SLOT in $FOUNDLIST; do
-                            if [ $SLOT == $i ]; then
+                            if [ $SLOT -eq $i ]; then
                                 # slot "i" already populated.  This means we've
                                 # already found this particular version of
                                 # python.  Continue the for ACC in