[Bug c/53066] Wshadow should not warn for shadowing an extern function

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53066

--- Comment #2 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-10-29 
20:17:34 UTC ---
Author: manu
Date: Mon Oct 29 20:17:23 2012
New Revision: 192963

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192963
Log:
2012-10-29  Manuel López-Ibáñez  <m...@gcc.gnu.org>

    PR c/53066
c/
    * c-decl.c (warn_if_shadowing): Do not warn if a variable
    shadows a function, unless the variable is a function or a
    pointer-to-function.
gcc/
    * tree.h (FUNCTION_POINTER_TYPE_P): New.
testsuite/
    * gcc.dg/Wshadow-4.c: New.
    * gcc.dg/Wshadow-4.h: New.


Added:
    trunk/gcc/testsuite/gcc.dg/Wshadow-4.c
    trunk/gcc/testsuite/gcc.dg/Wshadow-4.h
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c/ChangeLog
    trunk/gcc/c/c-decl.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree.h