I am attempting to build under 10.4.8 on a MacPro (Intel). I did try the suggestion of setting the environment var CC to a working compiler, but did not get it to work. Here are the errors I get: ~ $port install gcc34 ---> Configuring gcc34 Error: Target com.apple.configure returned: configure failure: shell command "cd "/opt/local/var/db/dports/build/ _opt_local_var_db_dports_sources_rsync.rsync.darwinports.org_dpupdate_dp orts_lang_gcc34/work/build" && CC=/usr/bin/gcc-3.3 /opt/local/var/db/ dports/build/ _opt_local_var_db_dports_sources_rsync.rsync.darwinports.org_dpupdate_dp orts_lang_gcc34/work/gcc-3.4.6/configure --prefix=/opt/local --enable- languages=c,c++,f77,objc,java --libdir=/opt/local/lib/gcc-3.4 -- infodir=/opt/local/share/info --mandir=/opt/local/share/man --with- system-zlib --disable-nls --program-suffix=-dp-3.4 --with-local- prefix=/opt/local --with-gxx-include-dir=/opt/local/include/gcc-3.4/c+ +/" returned error 1 Command output: loading cache ./config.cache checking host system type... i686-apple-darwin8.8.1 checking target system type... i686-apple-darwin8.8.1 checking build system type... i686-apple-darwin8.8.1 checking for a BSD compatible install... /usr/bin/install -c *** This configuration is not supported in the following subdirectories: target-libobjc target-libffi target-boehm-gc target-zlib target- libjava (Any other directories should still work fine.) gcc-3.3: installation problem, cannot exec `cc1': No such file or directory gcc-3.3: installation problem, cannot exec `cc1': No such file or directory *** The command '/usr/bin/gcc-3.3 -o conftest -g conftest.c' failed. *** You must set the environment variable CC to a working compiler.