https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67454
--- Comment #13 from James Ballantine <j.ballantine at gmail dot com> --- Here is the ldd on the executable: ODIN $ ldd bin/exec/R libICE.so.6 => /usr/lib/libICE.so.6 libSM.so.6 => /usr/lib/libSM.so.6 libRblas.so => (file not found) libgfortran.so.3 => /usr/local/add-on/gcc/lib/libgfortran.so.3 libm.so.2 => /usr/lib/libm.so.2 libreadline.so.6 => /usr/lib/libreadline.so.6 libcurses.so.1 => /usr/lib/libcurses.so.1 libnsl.so.1 => /usr/lib/libnsl.so.1 libsocket.so.1 => /usr/lib/libsocket.so.1 librt.so.1 => /usr/lib/librt.so.1 libdl.so.1 => /usr/lib/libdl.so.1 libiconv.so.2 => /usr/lib/libiconv.so.2 libicuuc.so.3 => /usr/lib/libicuuc.so.3 libicui18n.so.3 => /usr/lib/libicui18n.so.3 libgomp.so.1 => /usr/local/add-on/gcc/lib/libgomp.so.1 libpthread.so.1 => /usr/lib/libpthread.so.1 libc.so.1 => /usr/lib/libc.so.1 libgcc_s.so.1 => /usr/local/add-on/gcc/lib/libgcc_s.so.1 libmp.so.2 => /usr/lib/libmp.so.2 libmd.so.1 => /usr/lib/libmd.so.1 libscf.so.1 => /usr/lib/libscf.so.1 libaio.so.1 => /usr/lib/libaio.so.1 libicudata.so.3 => /usr/lib/libicudata.so.3 libCrun.so.1 => /usr/lib/libCrun.so.1 libdoor.so.1 => /usr/lib/libdoor.so.1 libuutil.so.1 => /usr/lib/libuutil.so.1 libgen.so.1 => /usr/lib/libgen.so.1 /platform/SUNW,SPARC-Enterprise/lib/libc_psr.so.1 And ODIN $ ls -l /usr/local/add-on/gcc lrwxrwxrwx 1 jwb staff 27 Sep 2 13:42 /usr/local/add-on/gcc -> /usr/local/add-on/gcc-5.2.0/