https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69495
--- Comment #12 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
I have tested that the following patch fixes the failures
--- ../_clean/gcc/testsuite/gfortran.dg/elemental_optional_args_6.f90
2012-06-18 21:04:16.000000000 +0200
+++ gcc/testsuite/gfortran.dg/elemental_optional_args_6.f90 2016-01-30
17:12:57.000000000 +0100
@@ -1,4 +1,5 @@
! { dg-do run }
+! { dg-options "-pedantic" }
!
! PR fortran/53692
!
