[Bug c/24068] New: Unconditional warning when using -fwhole-program

["dann at godzilla dot ics dot uci dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

When trying to compile the attached preprocessed files using
gcc -c -fwhole-program --combine xterm.i xlwmenu.i

These warnings are produced unconditionally:

/home/dann/build/Emacs-CVS/emacs/lwlib/xlwmenu.c:57: warning: prototype for
'x_alloc_nearest_color_for_widget' follows non-prototype definition
/home/dann/build/Emacs-CVS/emacs/lwlib/xlwmenu.c:58: warning: prototype for
'x_alloc_lighter_color_for_widget' follows non-prototype definition
/home/dann/build/Emacs-CVS/emacs/lwlib/xlwmenu.c:64: warning: prototype for
'x_clear_errors' follows non-prototype definition
/home/dann/build/Emacs-CVS/emacs/lwlib/xlwmenu.c:65: warning: prototype for
'x_copy_dpy_color' follows non-prototype definition

AFAICT the warnings don't make much sense. The code is correct. The functions in
questions are defined in one file and then prototyped and used in the other
file. This kind of stuff appears in countless C programs. 
Can this warning be turned off by default?

-- 
           Summary: Unconditional warning when using -fwhole-program
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dann at godzilla dot ics dot uci dot edu
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24068