I will try with other images and the new compiler and let you know.
Same with:
Squeak VM version: 3.7-7 #1 Sat Mar 19 13:23:20 PST 2005 gcc 3.3
Built from: Squeak3.7 of '4 September 2004' [latest update: #5989]
Build host: Darwin emilia.local 7.8.0 Darwin Kernel Version 7.8.0: Wed Dec 22 14:26:17 PST 2004; root:xnu/xnu-517.11.1.obj~1/RELEASE_PPC Power Macintosh powerpc
default plugin location: /usr/local/lib/squeak/3.7-7/*.so