r262449 - in /branches/c++-modules: ChangeLog.m...

[nathan at gcc dot gnu dot org]

Author: nathan
Date: Thu Jul  5 17:41:55 2018
New Revision: 262449

URL: https://gcc.gnu.org/viewcvs?rev=262449&root=gcc&view=rev
Log:
	Legacy header warning
	gcc/
	* invoke.texi (Wlegacy-header): New warning.
	gcc/c-family/
	* c.opt (Wlegacy-header): New.
	gcc/cp/
	* cp-tree.h (atom_preamble_end): Declare.
	* cp-lang.c (atom_preamble_fsm): Use it.
	* lex.c (atom_preamble_prefix_peek): Check OPT_Wlegacy_header.
	* module.c (do_divert_include): Likewise.
	(atom_divert_include): Default -Wlegacy-header.
	(atom_preamble_end): New.
	* parser.c (c_parse_file): Use it.
	gcc/testsuite/
	* g++.dg/modules/legacy-6*: New.

Added:
    branches/c++-modules/gcc/testsuite/g++.dg/modules/legacy-6_a.H
    branches/c++-modules/gcc/testsuite/g++.dg/modules/legacy-6_b.H
    branches/c++-modules/gcc/testsuite/g++.dg/modules/legacy-6_c.C
    branches/c++-modules/gcc/testsuite/g++.dg/modules/legacy-6_d.C
    branches/c++-modules/gcc/testsuite/g++.dg/modules/legacy-6_e.C
    branches/c++-modules/gcc/testsuite/g++.dg/modules/legacy-6_f.C
Modified:
    branches/c++-modules/ChangeLog.modules
    branches/c++-modules/gcc/c-family/c.opt
    branches/c++-modules/gcc/cp/cp-lang.c
    branches/c++-modules/gcc/cp/cp-tree.h
    branches/c++-modules/gcc/cp/lex.c
    branches/c++-modules/gcc/cp/module.c
    branches/c++-modules/gcc/cp/parser.c
    branches/c++-modules/gcc/doc/invoke.texi