http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50853
--- Comment #5 from Alisdair Meredith <public at alisdairm dot net> 2011-10-24 14:10:38 UTC --- Using built-in specs. COLLECT_GCC=gcc-mp-4.6 COLLECT_LTO_WRAPPER=/opt/local/libexec/gcc/x86_64-apple-darwin10/4.6.1/lto-wrapper Target: x86_64-apple-darwin10 Configured with: ../gcc-4.6-20110325/configure --prefix=/opt/local --build=x86_64-apple-darwin10 --enable-languages=c,c++,objc,obj-c++ --libdir=/opt/local/lib/gcc46 --includedir=/opt/local/include/gcc46 --infodir=/opt/local/share/info --mandir=/opt/local/share/man --datarootdir=/opt/local/share/gcc-4.6 --with-local-prefix=/opt/local --with-system-zlib --disable-nls --program-suffix=-mp-4.6 --with-gxx-include-dir=/opt/local/include/gcc46/c++/ --with-gmp=/opt/local --with-mpfr=/opt/local --with-mpc=/opt/local --enable-stage1-checking --disable-multilib --enable-fully-dynamic-string Thread model: posix gcc version 4.6.1 20110325 (prerelease) (GCC) Hmm, that 'pre-rerelease' tag is annoying - the MacPorts port file updated to suggest this is the release version, rather than the release candidate. Sounds like I have a bad version, anyway. Sorry for the noise.