https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95090
--- Comment #5 from Manfred Schwarb <manfred99 at gmx dot ch> --- gdb shows: Program received signal SIGSEGV, Segmentation fault. 0xf7aa5162 in __strlen_sse2_bsf () from /lib/libc.so.6 #0 0xf7aa5162 in __strlen_sse2_bsf () from /lib/libc.so.6 #1 0x083e6def in get_unique_hashed_string(char*, gfc_symbol*) () #2 0x083e7754 in gfc_find_derived_vtab(gfc_symbol*) () #3 0x0847ef21 in resolve_fl_derived(gfc_symbol*) () #4 0x0847b857 in resolve_symbol(gfc_symbol*) () #5 0x084a6a10 in do_traverse_symtree(gfc_symtree*, void (*)(gfc_symtree*), void (*)(gfc_symbol*)) () #6 0x084870b7 in resolve_types(gfc_namespace*) () #7 0x0847a825 in gfc_resolve(gfc_namespace*) () #8 0x0846db96 in gfc_parse_file() () #9 0x084bdd27 in gfc_be_parse_file() () #10 0x08a3a6de in compile_file() () #11 0x083c8b15 in toplev::main(int, char**) () #12 0x083ccc21 in main ()