http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55696
--- Comment #2 from Kyle <kyle.niemeyer at gmail dot com> 2012-12-14 21:17:07 UTC --- I used homebrew (on Mac OS X 10.8.2). "gcc -v" reports: Using built-in specs. COLLECT_GCC=/usr/local/bin/gcc-4.7 COLLECT_LTO_WRAPPER=/usr/local/Cellar/gcc/4.7.2/gcc/libexec/gcc/x86_64-apple-darwin12.2.0/4.7.2/lto-wrapper Target: x86_64-apple-darwin12.2.0 Configured with: ../configure --enable-languages=c,c++,fortran --prefix=/usr/local/Cellar/gcc/4.7.2/gcc --datarootdir=/usr/local/Cellar/gcc/4.7.2/share --bindir=/usr/local/Cellar/gcc/4.7.2/bin --program-suffix=-4.7 --with-gmp=/usr/local/Cellar/gmp/5.0.5 --with-mpfr=/usr/local/Cellar/mpfr/3.1.1-p2 --with-mpc=/usr/local/Cellar/libmpc/1.0.1 --with-system-zlib --enable-stage1-checking --enable-plugin --enable-lto --disable-nls --disable-multilib Thread model: posix gcc version 4.7.2 (GCC) and "gfortran -v" reports: Using built-in specs. COLLECT_GCC=gfortran COLLECT_LTO_WRAPPER=/usr/local/Cellar/gfortran/4.7.2/gfortran/libexec/gcc/x86_64-apple-darwin12.2.0/4.7.2/lto-wrapper Target: x86_64-apple-darwin12.2.0 Configured with: ../configure --enable-languages=fortran --prefix=/usr/local/Cellar/gfortran/4.7.2/gfortran --datarootdir=/usr/local/Cellar/gfortran/4.7.2/share --bindir=/usr/local/Cellar/gfortran/4.7.2/bin --with-system-zlib --with-gmp=/usr/local/opt/gmp --with-mpfr=/usr/local/opt/mpfr --with-mpc=/usr/local/opt/libmpc --enable-checking=release --disable-stage1-checking --disable-build-poststage1-with-cxx --disable-libstdcxx-pc --disable-nls Thread model: posix gcc version 4.7.2 (GCC)