http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56735
--- Comment #2 from Adam Williams <madawilliams at gmail dot com> 2013-03-26 10:26:43 UTC --- Hi Dominique Cheers for the quick response. Here is my gfortran -v info: Using built-in specs. COLLECT_GCC=gfortran COLLECT_LTO_WRAPPER=/usr/local/gfortran/libexec/gcc/x86_64-apple-darwin11/4.6.2/lto-wrapper Target: x86_64-apple-darwin11 Configured with: ../gcc-4.6.2-RC-20111019/configure --prefix=/usr/local/gfortran --with-gmp=/Users/fx/devel/gcc/deps-static/x86_64 --enable-languages=c,c++,fortran,objc,obj-c++ --build=x86_64-apple-darwin11 Thread model: posix gcc version 4.6.2 20111019 (prerelease) (GCC) With the question mark in the namelist file i get the following output: &TEMP INT1= 17252416, INT2= 32767, INT3= 1589168960, / 0