[Bug fortran/54221] [4.8 Regression] Explicit private access specifier signals "unexpected defined but not used [-Wunused-function]" warning

["burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54221

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4
   Target Milestone|---                         |4.8.0
            Summary|Explicit private access     |[4.8 Regression] Explicit
                   |specifier signals           |private access specifier
                   |"unexpected defined but not |signals "unexpected defined
                   |used [-Wunused-function]"   |but not used
                   |warning                     |[-Wunused-function]"
                   |                            |warning

--- Comment #4 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-08-21 08:53:48 UTC ---
I mark this now as regression in the Fortran front-end to keep better track of
PR middle-end/54224: It seems as if part of the fix has to be done in the
Fortran front-end.

In this PR, the issue of having a different result with PRIVATE vs. "PRIVATE ::
entry_name" is now fixed.

It remains the issue that there is no warning for unused internal procedures
(or unused nested functions in C), no warning of unused PRIVATE module
variables and a spurious warning for *used* PRIVATE module procedures. Those
are tracked in PR 54224. Additionally, there is the issue that the private
module procedures is not inlined, see other PR and PR 48636 comment 18.