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From: "janus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/46952] [OOP] Spurious "recursive call" error with type bound procedure
Date: Thu, 10 Jan 2013 11:49:00 -0000
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X-Bugzilla-Component: fortran
X-Bugzilla-Keywords: ice-on-invalid-code, rejects-valid
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X-Bugzilla-Who: janus at gcc dot gnu.org
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46952

janus at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |janus at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #4 from janus at gcc dot gnu.org 2013-01-10 11:48:54 UTC ---
I think the following patch makes sense:

Index: gcc/fortran/resolve.c
===================================================================
--- gcc/fortran/resolve.c    (revision 194927)
+++ gcc/fortran/resolve.c    (working copy)
@@ -3803,7 +3803,7 @@ resolve_call (gfc_code *c)

   /* Subroutines without the RECURSIVE attribution are not allowed to
    * call themselves.  */
-  if (csym && is_illegal_recursion (csym, gfc_current_ns))
+  if (!c->expr1 && csym && is_illegal_recursion (csym, gfc_current_ns))
     {
       if (csym->attr.entry && csym->ns->entries)
     gfc_error ("ENTRY '%s' at %L cannot be called recursively, as"


This is the same workaround that we use in resolve_call for deferred TBPs with
abstract interfaces.