Hi all,

I am planning to commit the following patch

--- ../_clean/gcc/fortran/module.c      2019-03-21 20:46:46.000000000 +0100
+++ gcc/fortran/module.c        2019-04-11 10:28:37.000000000 +0200
@@ -7144,8 +7144,12 @@ gfc_use_module (gfc_use_list *module)
   for (p = gfc_state_stack; p; p = p->previous)
     if ((p->state == COMP_MODULE || p->state == COMP_SUBMODULE)
         && strcmp (p->sym->name, module_name) == 0)
-      gfc_fatal_error ("Cannot USE the same %smodule we're building",
-                      p->state == COMP_SUBMODULE ? "sub" : "");
+      {
+       if (p->state == COMP_SUBMODULE)
+         gfc_fatal_error ("Cannot USE a submodule that is currently built");
+       else
+         gfc_fatal_error ("Cannot USE a module that is currently built");
+      }
 
   init_pi_tree ();
   init_true_name_tree ();

While testing it I did not find any coverage of these errors in the test suite.

TIA

Dominique

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