I see no similarity with #33087. That ticket was on a MacBook Pro running Lion and had this error message:
no such file or directory: 'gengtype-yacc.c'
It was an unclean build, and the user did not respond to requests to do a clean build.
You on the other hand are using a PowerPC Mac with Leopard, and the error in your log is:
:info:build /opt/local/bin/strip: object: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_apple-gcc42/apple-gcc42/work/objroot/obj-powerpc-i686/gcc/libgcc_s.1.dylib.tmp malformed object (unknown load command 5)