Please review. Added experimental Darwin unofficial support. Included Miles Egan's guessos patch as interim code predating an official GNU shtool release.

openpkg/aux.prereq.sh

@@ -88,6 +88,9 @@ case $platform in
     *-hpux* )
        support=maybe
        ;;
+    *-darwin* )
+       support=maybe
+       ;;
 esac
 case $support in
     yes   ) support="Congratulations: officially supported" ;;

openpkg/shtool

@@ -2529,6 +2529,10 @@ guessos )
            esac
            echo "${MACHINE}-apple-rhapsody${RELEASE}"; exit 0
            ;;
+        Darwin:*:*:*)
+           MACHINE=`uname -p`
+           echo "${MACHINE}-apple-darwin${RELEASE}"; exit 0
+           ;;
         "Mac OS":*:*:*)
            MACHINE=`uname -p`
            echo "${MACHINE}-apple-macos${RELEASE}"; exit 0