Compiling using g77 -save-temps -g -W -o opacTesting opacityTesting.f contop_3D.f eos_eqn.f eos.f lineq.f /usr/lib/liblapack.so.2
produces the following output: opacityTesting.f: In program `MAIN__': In file included from opacityTesting.f:0: opacityTesting.f:470: internal compiler error: in gen_subprogram_die, at dwarf2out.c:10914 Please submit a full bug report [...] -- Summary: internal compiler error: in gen_subprogram_die Product: gcc Version: 3.4.5 Status: UNCONFIRMED Severity: normal Priority: P2 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: samreg at astro dot uu dot se CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23573