Hi, I see that java and fortran are in the default configuration, does that mean that gcc 4.3 has been released? It seems that the error that I had before and others have found that the 64 bit version creates bad binaries that cause problems for the 64 bit ld. Below is the error: name /opt/local/lib/gcc43/x86_64/libgcj.9.dylib -compatibility_version 10 -current_version 10.0 /usr/bin/ld: fatal error in /usr/bin/ld64 collect2: ld returned 1 exit status make[5]: *** [libgcj.la] Error 1 make[4]: *** [all-recursive] Error 1 make[3]: *** [multi-do] Error 1 make[2]: *** [all-multi] Error 2 make[1]: *** [all-target-libjava] Error 2 make: *** [all] Error 2 I found another link that discusses a similar issue with 4.2 http://gcc.gnu.org/ml/gcc-help/2007-06/msg00025.html . I am building on Tiger (10.4.11) with Xcode 2.5 Michael