2007-07-12  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
	    Janis Johnson  <janis187@us.ibm.com>

	PR testsuite/25241
gcc/testsuite/
	* gcc.test-framework/dg-error-exp-F.c: New test.
	* gcc.test-framework/dg-warning-exp-F.c: New test.
	* lib/gcc.exp: Enable warning and error prefixes.
	* lib/gcc-dg.exp (dg-warning): Wrap original dg-warning.
	(dg-error): Wrap original dg-error.
	* gcc.target/powerpc/altivec-types-1.c: Remove explicit error/warning
	markers from dg-error/dg-warning directives.
	* gcc.dg/20040322-1.c: Likewise.
	* gcc.dg/Wchar-subscripts-1.c: Likewise.
	* gcc.dg/Wdeclaration-after-statement-1.c: Likewise.
	* gcc.dg/Wdeclaration-after-statement-2.c: Likewise.
	* gcc.dg/Werror-1.c: Likewise.
	* gcc.dg/Werror-10.c: Likewise.
	* gcc.dg/Werror-11.c: Likewise.
	* gcc.dg/Werror-2.c: Likewise.
	* gcc.dg/Werror-3.c: Likewise.
	* gcc.dg/Werror-4.c: Likewise.
	* gcc.dg/Werror-5.c: Likewise.
	* gcc.dg/Werror-6.c: Likewise.
	* gcc.dg/Werror-7.c: Likewise.
	* gcc.dg/Werror-8.c: Likewise.
	* gcc.dg/Werror-9.c: Likewise.
	* gcc.dg/Werror-implicit-function-declaration.c: Likewise.
	* gcc.dg/Wimplicit-function-declaration-c89-pedantic.c: Likewise.
	* gcc.dg/Wimplicit-function-declaration-c89.c: Likewise.
	* gcc.dg/Wimplicit-function-declaration-c99-pedantic.c: Likewise.
	* gcc.dg/Wimplicit-function-declaration-c99.c: Likewise.
	* gcc.dg/Wint-to-pointer-cast-1.c: Likewise.
	* gcc.dg/Wint-to-pointer-cast-2.c: Likewise.
	* gcc.dg/Wint-to-pointer-cast-3.c: Likewise.
	* gcc.dg/Wnested-externs-1.c: Likewise.
	* gcc.dg/Wpointer-to-int-cast-1.c: Likewise.
	* gcc.dg/Wpointer-to-int-cast-2.c: Likewise.
	* gcc.dg/Wpointer-to-int-cast-3.c: Likewise.
	* gcc.dg/Wshadow-3.c: Likewise.
	* gcc.dg/Wtraditional-conversion-2.c: Likewise.
	* gcc.dg/Wwrite-strings-1.c: Likewise.
	* gcc.dg/anon-struct-5.c: Likewise.
	* gcc.dg/anon-struct-6.c: Likewise.
	* gcc.dg/anon-struct-7.c: Likewise.
	* gcc.dg/anon-struct-8.c: Likewise.
	* gcc.dg/array-8.c: Likewise.
	* gcc.dg/array-quals-2.c: Likewise.
	* gcc.dg/asm-qual-1.c: Likewise.
	* gcc.dg/asm-wide-1.c: Likewise.
	* gcc.dg/assign-warn-1.c: Likewise.
	* gcc.dg/assign-warn-2.c: Likewise.
	* gcc.dg/bitfld-10.c: Likewise.
	* gcc.dg/bitfld-11.c: Likewise.
	* gcc.dg/bitfld-12.c: Likewise.
	* gcc.dg/bitfld-13.c: Likewise.
	* gcc.dg/bitfld-14.c: Likewise.
	* gcc.dg/builtin-choose-expr-2.c: Likewise.
	* gcc.dg/builtins-30.c: Likewise.
	* gcc.dg/c90-const-expr-5.c: Likewise.
	* gcc.dg/c90-typespec-1.c: Likewise.
	* gcc.dg/c99-const-expr-5.c: Likewise.
	* gcc.dg/c99-flex-array-5.c: Likewise.
	* gcc.dg/c99-fordecl-3.c: Likewise.
	* gcc.dg/c99-tag-3.c: Likewise.
	* gcc.dg/c99-typespec-1.c: Likewise.
	* gcc.dg/c99-vla-jump-1.c: Likewise.
	* gcc.dg/c99-vla-jump-2.c: Likewise.
	* gcc.dg/c99-vla-jump-3.c: Likewise.
	* gcc.dg/c99-vla-jump-4.c: Likewise.
	* gcc.dg/c99-vla-jump-5.c: Likewise.
	* gcc.dg/cast-1.c: Likewise.
	* gcc.dg/cast-2.c: Likewise.
	* gcc.dg/cast-3.c: Likewise.
	* gcc.dg/cast-4.c: Likewise.
	* gcc.dg/cast-pretty-print-1.c: Likewise.
	* gcc.dg/comp-goto-2.c: Likewise.
	* gcc.dg/comp-goto-3.c: Likewise.
	* gcc.dg/cpp/error-1.c: Likewise.
	* gcc.dg/cpp/if-paren.c: Likewise.
	* gcc.dg/decl-7.c: Likewise.
	* gcc.dg/decl-8.c: Likewise.
	* gcc.dg/decl-nospec-1.c: Likewise.
	* gcc.dg/decl-nospec-2.c: Likewise.
	* gcc.dg/decl-nospec-3.c: Likewise.
	* gcc.dg/declspec-10.c: Likewise.
	* gcc.dg/declspec-11.c: Likewise.
	* gcc.dg/declspec-12.c: Likewise.
	* gcc.dg/declspec-13.c: Likewise.
	* gcc.dg/declspec-14.c: Likewise.
	* gcc.dg/declspec-15.c: Likewise.
	* gcc.dg/declspec-16.c: Likewise.
	* gcc.dg/declspec-17.c: Likewise.
	* gcc.dg/declspec-4.c: Likewise.
	* gcc.dg/declspec-5.c: Likewise.
	* gcc.dg/declspec-6.c: Likewise.
	* gcc.dg/declspec-7.c: Likewise.
	* gcc.dg/declspec-8.c: Likewise.
	* gcc.dg/declspec-9.c: Likewise.
	* gcc.dg/dfp/Wtraditional-conversion-2.c: Likewise.
	* gcc.dg/dfp/constants-c99.c: Likewise.
	* gcc.dg/dfp/keywords-c89.c: Likewise.
	* gcc.dg/dfp/keywords-c99.c: Likewise.
	* gcc.dg/dfp/keywords-reserved.c: Likewise.
	* gcc.dg/dfp/typespec.c: Likewise.
	* gcc.dg/dremf-type-compat-2.c: Likewise.
	* gcc.dg/dremf-type-compat-3.c: Likewise.
	* gcc.dg/dremf-type-compat-4.c: Likewise.
	* gcc.dg/empty-source-2.c: Likewise.
	* gcc.dg/empty-source-3.c: Likewise.
	* gcc.dg/enum3.c: Likewise.
	* gcc.dg/extra-semi-2.c: Likewise.
	* gcc.dg/extra-semi-3.c: Likewise.
	* gcc.dg/float-range-1.c: Likewise.
	* gcc.dg/float-range-2.c: Likewise.
	* gcc.dg/float-range-3.c: Likewise.
	* gcc.dg/float-range-5.c: Likewise.
	* gcc.dg/format/asm_fprintf-2.c: Likewise.
	* gcc.dg/format/asm_fprintf-3.c: Likewise.
	* gcc.dg/format/asm_fprintf-4.c: Likewise.
	* gcc.dg/format/asm_fprintf-5.c: Likewise.
	* gcc.dg/format/cast-1.c: Likewise.
	* gcc.dg/format/gcc_diag-3.c: Likewise.
	* gcc.dg/format/gcc_diag-4.c: Likewise.
	* gcc.dg/format/gcc_diag-6.c: Likewise.
	* gcc.dg/format/gcc_diag-8.c: Likewise.
	* gcc.dg/format/gcc_diag-9.c: Likewise.
	* gcc.dg/format/nul-2.c: Likewise.
	* gcc.dg/format/opt-1.c: Likewise.
	* gcc.dg/format/opt-2.c: Likewise.
	* gcc.dg/format/opt-3.c: Likewise.
	* gcc.dg/format/opt-4.c: Likewise.
	* gcc.dg/format/opt-5.c: Likewise.
	* gcc.dg/format/opt-6.c: Likewise.
	* gcc.dg/framework-2.c: Likewise.
	* gcc.dg/func-args-1.c: Likewise.
	* gcc.dg/func-outside-1.c: Likewise.
	* gcc.dg/func-outside-2.c: Likewise.
	* gcc.dg/gnu-cond-expr-2.c: Likewise.
	* gcc.dg/gnu-cond-expr-3.c: Likewise.
	* gcc.dg/if-empty-1.c: Likewise.
	* gcc.dg/init-bad-1.c: Likewise.
	* gcc.dg/init-bad-2.c: Likewise.
	* gcc.dg/init-bad-3.c: Likewise.
	* gcc.dg/init-desig-obs-2.c: Likewise.
	* gcc.dg/init-desig-obs-3.c: Likewise.
	* gcc.dg/init-empty-2.c: Likewise.
	* gcc.dg/init-empty-3.c: Likewise.
	* gcc.dg/inline-11.c: Likewise.
	* gcc.dg/inline-12.c: Likewise.
	* gcc.dg/inline-8.c: Likewise.
	* gcc.dg/inline-9.c: Likewise.
	* gcc.dg/inline3.c: Likewise.
	* gcc.dg/label-decl-1.c: Likewise.
	* gcc.dg/label-decl-2.c: Likewise.
	* gcc.dg/label-decl-3.c: Likewise.
	* gcc.dg/label-decl-4.c: Likewise.
	* gcc.dg/long-long-typespec-1.c: Likewise.
	* gcc.dg/lvalue-2.c: Likewise.
	* gcc.dg/lvalue-3.c: Likewise.
	* gcc.dg/nested-func-3.c: Likewise.
	* gcc.dg/nested-redef-1.c: Likewise.
	* gcc.dg/noreturn-4.c: Likewise.
	* gcc.dg/old-style-prom-2.c: Likewise.
	* gcc.dg/old-style-prom-3.c: Likewise.
	* gcc.dg/old-style-then-proto-1.c: Likewise.
	* gcc.dg/overflow-warn-1.c: Likewise.
	* gcc.dg/overflow-warn-2.c: Likewise.
	* gcc.dg/overflow-warn-3.c: Likewise.
	* gcc.dg/overflow-warn-4.c: Likewise.
	* gcc.dg/overflow-warn-6.c: Likewise.
	* gcc.dg/parm-forwdecl-2.c: Likewise.
	* gcc.dg/parm-forwdecl-3.c: Likewise.
	* gcc.dg/parm-impl-decl-1.c: Likewise.
	* gcc.dg/parm-impl-decl-2.c: Likewise.
	* gcc.dg/parm-incomplete-1.c: Likewise.
	* gcc.dg/parm-mismatch-1.c: Likewise.
	* gcc.dg/pointer-arith-1.c: Likewise.
	* gcc.dg/pointer-arith-2.c: Likewise.
	* gcc.dg/pointer-arith-3.c: Likewise.
	* gcc.dg/pointer-arith-4.c: Likewise.
	* gcc.dg/pointer-arith-6.c: Likewise.
	* gcc.dg/pointer-arith-7.c: Likewise.
	* gcc.dg/pointer-arith-8.c: Likewise.
	* gcc.dg/pr13804-1.c: Likewise.
	* gcc.dg/pr15698-1.c: Likewise.
	* gcc.dg/pr15698-2.c: Likewise.
	* gcc.dg/pr15698-3.c: Likewise.
	* gcc.dg/pr15698-4.c: Likewise.
	* gcc.dg/pr15698-5.c: Likewise.
	* gcc.dg/pr15698-6.c: Likewise.
	* gcc.dg/pr15698-7.c: Likewise.
	* gcc.dg/pr15698-8.c: Likewise.
	* gcc.dg/pr17188-1.c: Likewise.
	* gcc.dg/pr17301-1.c: Likewise.
	* gcc.dg/pr17301-2.c: Likewise.
	* gcc.dg/pr17730-1.c: Likewise.
	* gcc.dg/pr20368-1.c: Likewise.
	* gcc.dg/pr20368-2.c: Likewise.
	* gcc.dg/pr20368-3.c: Likewise.
	* gcc.dg/pr22308-1.c: Likewise.
	* gcc.dg/qual-component-1.c: Likewise.
	* gcc.dg/redecl-1.c: Likewise.
	* gcc.dg/redecl-11.c: Likewise.
	* gcc.dg/redecl-12.c: Likewise.
	* gcc.dg/redecl-13.c: Likewise.
	* gcc.dg/redecl-14.c: Likewise.
	* gcc.dg/redecl-15.c: Likewise.
	* gcc.dg/register-var-1.c: Likewise.
	* gcc.dg/register-var-2.c: Likewise.
	* gcc.dg/stmt-expr-2.c: Likewise.
	* gcc.dg/stmt-expr-3.c: Likewise.
	* gcc.dg/stmt-expr-label-1.c: Likewise.
	* gcc.dg/stmt-expr-label-2.c: Likewise.
	* gcc.dg/stmt-expr-label-3.c: Likewise.
	* gcc.dg/struct-empty-2.c: Likewise.
	* gcc.dg/struct-empty-3.c: Likewise.
	* gcc.dg/struct-parse-1.c: Likewise.
	* gcc.dg/struct-semi-1.c: Likewise.
	* gcc.dg/struct-semi-2.c: Likewise.
	* gcc.dg/struct-semi-3.c: Likewise.
	* gcc.dg/switch-5.c: Likewise.
	* gcc.dg/switch-6.c: Likewise.
	* gcc.dg/switch-7.c: Likewise.
	* gcc.dg/tls/diag-5.c: Likewise.
	* gcc.dg/transparent-union-1.c: Likewise.
	* gcc.dg/transparent-union-3.c: Likewise.
	* gcc.dg/typespec-1.c: Likewise.
	* gcc.dg/vla-init-2.c: Likewise.
	* gcc.dg/vla-init-3.c: Likewise.
	* gcc.dg/vla-init-4.c: Likewise.
	* gcc.dg/vla-init-5.c: Likewise.
	* gcc.dg/void-cast-2.c: Likewise.
	* gcc.dg/wvla-3.c: Likewise.
	* gcc.dg/wvla-7.c: Likewise.
	* gcc.target/i386/991209-1.c: Likewise.
	* gcc.target/ia64/fpreg-1.c: Likewise.
	* gcc.target/m68k/interrupt_thread-2.c: Likewise.
	* gcc.target/m68k/interrupt_thread-3.c: Likewise.

From-SVN: r126606

2007-02-15  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR c/26494
	* doc/invoke.texi (Warning Options): Remove
	-Werror-implicit-function-declaration.
	(Wimplicit-function-declaration): Update description.
	* opts.c (common_handle_option): Move handling of -Werror=* to...
	(enable_warning_as_error): ...here.
	* opts.h (enable_warning_as_error): Declare.
	* c-decl.c (implicit_decl_warning): Unless
	-Wno-implicit-function-declaration is given, emit a pedwarn if
	-std=c99 or emit a warning if -Wimplicit-function-declaration.
	* c.opt (Wimplicit-function-declaration): Replace
	mesg_implicit_function_declaration with
	warn_implicit_function_declaration.
	* c-opts.c (c_common_handle_option):
	-Werror-implicit-function-declaration is exactly equal as
	-Werror=implicit-function-declaration.
	(set_Wimplicit): Replace mesg_implicit_function_declaration with
	warn_implicit_function_declaration.
	(c_common_post_options): -Wimplict-function-declaration is enabled
	by default by -std=c99, otherwise is disabled by default.
	* c-objc-common.c (c_objc_common_init): Remove flawed logic.
testsuite/
	* gcc.dg/Wimplicit-function-declaration-c89.c: New.
	* gcc.dg/Wimplicit-function-declaration-c89-default.c: New.
	* gcc.dg/Wimplicit-function-declaration-c89-pedantic.c: New.
	* gcc.dg/Wimplicit-function-declaration-c99.c: New.
	* gcc.dg/Wimplicit-function-declaration-c99-pedantic.c: New.
	* gcc.dg/Werror-implicit-function-declaration.c: New.

From-SVN: r122017