2010-04-09  Manuel López-Ibáñez  <manu@gcc.gnu.org>

	PR 42965
	* diagnostic.c (diagnostic_initialize): Initialize
	some_warnings_are_errors.
	(diagnostic_finish): New.
	(diagnostic_action_after_output): Call it before exiting.
	(diagnostic_report_diagnostic): Do not print message here. Set
	some_warnings_are_errors.
	* diagnostic.h (diagnostic_context): Delete
	issue_warnings_are_errors_message. Add some_warnings_are_errors.
	(diagnostic_finish): Declare.
	* toplev.c (toplev_main): Call it before exit.
testsuite/
	* gcc.dg/Werror-6.c: Adjust.
	* gcc.dg/Werror-implicit-function-declaration.c: Likewise.
	* gcc.dg/Werror-4.c: Likewise.
	* gcc.dg/Wdeclaration-after-statement-3.c: Likewise.
	* gcc.dg/Wswitch-enum-error.c: Likewise.
	* gcc.dg/Wpointer-arith.c: Likewise.
	* gcc.dg/Wfatal.c: Likewise.
	* gcc.dg/Wswitch-error.c: Likewise.
	* g++.dg/warn/unused-result1-Werror.c: Likewise.
	* gcc.dg/Werror-9.c: Delete. Duplicate of Werror-4.c.
	* gcc.dg/cpp/warn-undef-2.c: Likewise.
	* gcc.dg/cpp/warn-traditional-2.c: Likewise.
	* gcc.dg/cpp/warn-comments-2.c: Likewise.
	* gcc.dg/cpp/warn-variadic-2.c: Likewise.
	* gcc.dg/cpp/warning-directive-2.c: Likewise.
	* gcc.dg/cpp/warn-long-long-2.c: Likewise.
	* gcc.dg/cpp/warn-deprecated-2.c: Likewise.
	* gcc.dg/cpp/warn-multichar-2.c: Likewise.
	* gcc.dg/cpp/warn-normalized-3.c: Likewise.
	* gcc.dg/cpp/warn-cxx-compat-2.c: Likewise.
	* gcc.dg/cpp/warn-trigraphs-3.c: Likewise.
	* gcc.dg/cpp/warn-unused-macros-2.c: Likewise.
	* gcc.dg/cpp/warn-trigraphs-4.c: Likewise.
	* gcc.dg/cpp/warn-redefined-2.c: Likewise.
	* g++.dg/cpp/warning-directive-2.C: Likewise.
	* gfortran.dg/warning-directive-2.F90: Likewise.

From-SVN: r158168