trans-types.c (gfc_sym_type, [...]): For sym->attr.result check sym->ns->proc_name->attr.is_bind_c.

	* trans-types.c (gfc_sym_type, gfc_return_by_reference): For
	sym->attr.result check sym->ns->proc_name->attr.is_bind_c.

	* gfortran.dg/bind_c_usage_19.f90: New test.

From-SVN: r145294

gcc/fortran/ChangeLog

+2009-03-30  Jakub Jelinek  <jakub@redhat.com>
+
+	* trans-types.c (gfc_sym_type, gfc_return_by_reference): For
+	sym->attr.result check sym->ns->proc_name->attr.is_bind_c.
+
 2009-03-30  Joseph Myers  <joseph@codesourcery.com>
 
 	PR rtl-optimization/323

gcc/fortran/trans-types.c

@@ -1632,8 +1632,11 @@ gfc_sym_type (gfc_symbol * sym)
   if (sym->backend_decl && !sym->attr.function)
     return TREE_TYPE (sym->backend_decl);
 
-  if (sym->ts.type == BT_CHARACTER && sym->attr.is_bind_c
-      && (sym->attr.function || sym->attr.result))
+  if (sym->ts.type == BT_CHARACTER
+      && ((sym->attr.function && sym->attr.is_bind_c)
+	  || (sym->attr.result
+	      && sym->ns->proc_name
+	      && sym->ns->proc_name->attr.is_bind_c)))
     type = gfc_character1_type_node;
   else
     type = gfc_typenode_for_spec (&sym->ts);
@@ -1962,7 +1965,11 @@ gfc_return_by_reference (gfc_symbol * sym)
   if (sym->attr.dimension)
     return 1;
 
-  if (sym->ts.type == BT_CHARACTER && !sym->attr.is_bind_c)
+  if (sym->ts.type == BT_CHARACTER
+      && !sym->attr.is_bind_c
+      && (!sym->attr.result
+	  || !sym->ns->proc_name
+	  || !sym->ns->proc_name->attr.is_bind_c))
     return 1;
 
   /* Possibly return complex numbers by reference for g77 compatibility.

gcc/testsuite/ChangeLog

+2009-03-30  Jakub Jelinek  <jakub@redhat.com>
+
+	* gfortran.dg/bind_c_usage_19.f90: New test.
+
 2009-03-30  Joseph Myers  <joseph@codesourcery.com>
 
 	PR rtl-optimization/323

gcc/testsuite/gfortran.dg/bind_c_usage_19.f90

+! { dg-do compile }
+function return_char1(i) bind(c,name='return_char1')
+  use iso_c_binding
+  implicit none
+  integer(c_int) :: i
+  character(c_char) :: j
+  character(c_char) :: return_char1
+
+  j = achar(i)
+  return_char1 = j
+end function return_char1
+function return_char2(i) result(output) bind(c,name='return_char2')
+  use iso_c_binding
+  implicit none
+  integer(c_int) :: i
+  character(c_char) :: j
+  character(c_char) :: output
+
+  j = achar(i)
+  output = j
+end function return_char2
+function return_char3(i) bind(c,name='return_char3') result(output)
+  use iso_c_binding
+  implicit none
+  integer(c_int) :: i
+  character(c_char) :: j
+  character(c_char) :: output
+
+  j = achar(i)
+  output = j
+end function return_char3