https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68358
--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > Can you please bisect SVN revision that is responsible for these failures? The warnings are issued by dsymutil coming with Xcode 7 for darwin14 or 15. If I replace it with dsymutil coming from Xcode 6.2, the warning are gone. And the warnings are there from 4.8 up to trunk (with variations). [Book15] Downloads/tmp% gfortran-fsf-5 /opt/gcc/_clean/gcc/testsuite/gfortran.dg/alloc_comp_deep_copy_1.f03 -g -flto warning: (x86_64) could not find object file symbol for symbol ___final_alloc_comp_copy_test_T.3418.lto_priv.13 warning: (x86_64) could not find object file symbol for symbol _A.33.3739.lto_priv.7 warning: (x86_64) could not find object file symbol for symbol _A.40.3790.lto_priv.8 warning: (x86_64) could not find object file symbol for symbol _A.61.3948.lto_priv.9 warning: (x86_64) could not find object file symbol for symbol _A.68.3999.lto_priv.10 warning: (x86_64) could not find object file symbol for symbol ___def_init_alloc_comp_copy_test_T.3569.lto_priv.11 warning: (x86_64) could not find object file symbol for symbol ___vtab_alloc_comp_copy_test_T.3577.lto_priv.5 warning: (x86_64) could not find object file symbol for symbol _o3.3583.lto_priv.4 warning: (x86_64) could not find object file symbol for symbol _o4.3584.lto_priv.6 warning: (x86_64) could not find object file symbol for symbol _o1.3578.lto_priv.2 warning: (x86_64) could not find object file symbol for symbol _o2.3579.lto_priv.3 [Book15] Downloads/tmp% gfortran-fsf-4.9 /opt/gcc/_clean/gcc/testsuite/gfortran.dg/alloc_comp_deep_copy_1.f03 -g -flto warning: (x86_64) could not find object file symbol for symbol ___final_alloc_comp_copy_test_T.2359.lto_priv.13 warning: (x86_64) could not find object file symbol for symbol _A.33.2680.lto_priv.7 warning: (x86_64) could not find object file symbol for symbol _A.40.2731.lto_priv.8 warning: (x86_64) could not find object file symbol for symbol _A.61.2889.lto_priv.9 warning: (x86_64) could not find object file symbol for symbol _A.68.2940.lto_priv.10 warning: (x86_64) could not find object file symbol for symbol ___def_init_alloc_comp_copy_test_T.2510.lto_priv.11 warning: (x86_64) could not find object file symbol for symbol ___vtab_alloc_comp_copy_test_T.2518.lto_priv.5 warning: (x86_64) could not find object file symbol for symbol _o3.2524.lto_priv.4 warning: (x86_64) could not find object file symbol for symbol _o4.2525.lto_priv.6 warning: (x86_64) could not find object file symbol for symbol _o1.2519.lto_priv.2 warning: (x86_64) could not find object file symbol for symbol _o2.2520.lto_priv.3
