https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78150
Jerry DeLisle <jvdelisle at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED CC| |jvdelisle at gcc dot gnu.org Resolution|--- |INVALID --- Comment #2 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> --- The development branch (7.0) is not compatible with previously compiled libraries and manifests as segfault. This was fixed just recently, as Steve indicated indirectly. gfortran Version 7 must have libgfortran.so.4. So check your lib paths and make sure you have version 4 f the libraries. Earlier preliminary versions of gfortran 7 produced a libgfortran.so.3 that worked, but t is not the same libgfortran.so.3 as distributed with gfortran Version 6. It is most likely the linker loader is finding the earlier version of libgfortran.so.3. This is why we bumped the lingfortran version to 4, to fix this issue. See PR77828. Closing this PR, let me know if it is learned there is some other issue.