c-family/
* c-opts.c (c_common_post_options): Set warn_implicit_int.
* c.opt (Wimplicit-int): Initialize to -1.
c/
* c-decl.c (grokdeclarator): Use OPT_Wimplicit_int unconditionally.
(start_function): Use OPT_Wimplicit_int instead of 0.
(store_parm_decls_oldstyle): Likewise.
testsuite/
* gcc.dg/Wimplicit-int-1.c: New test.
* gcc.dg/Wimplicit-int-2.c: New test.
* gcc.dg/Wimplicit-int-3.c: New test.
* gcc.dg/Wimplicit-int-4.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216412 138bc75d-0d04-0410-961f-82ee72b054a4