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c-opts.c (sanitize_cpp_opts): Make warn_long_long be set according to warn_c90_c99_compat.

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gcc/c-family/
	* c-opts.c (sanitize_cpp_opts): Make warn_long_long be set according
	to warn_c90_c99_compat.
	* c.opt (Wc90-c99-compat, Wdeclaration-after-statement): Initialize
	to -1.
gcc/c/
	* c-decl.c (warn_variable_length_array): Pass OPT_Wvla unconditionally
	to pedwarn_c90.
	* c-errors.c: Include "opts.h".
	(pedwarn_c90): Rewrite to handle -Wno-c90-c99-compat better.
	* c-parser.c (disable_extension_diagnostics): Handle negative value
	of warn_c90_c99_compat, too.
	(restore_extension_diagnostics): Likewise.
	(c_parser_compound_statement_nostart): Pass
	OPT_Wdeclaration_after_statement unconditionally to pedwarn_c90.
gcc/testsuite/
	* gcc.dg/Wc90-c99-compat-4.c: Remove all dg-warnings.
	* gcc.dg/Wc90-c99-compat-5.c: Remove all dg-errors.
	* gcc.dg/Wc90-c99-compat-7.c: New test.
	* gcc.dg/Wc90-c99-compat-8.c: New test.
	* gcc.dg/Wdeclaration-after-statement-4.c: New test.
libcpp/
	* charset.c (_cpp_valid_ucn): Warn only if -Wc90-c99-compat.
	* lex.c (_cpp_lex_direct): Likewise.
	* macro.c (replace_args): Likewise.
	(parse_params): Likewise.
	* include/cpplib.h (cpp_options): Change cpp_warn_c90_c99_compat
	to char.

From-SVN: r214131
This commit is contained in:
Marek Polacek 2014-08-19 05:34:31 +00:00 • committed by Marek Polacek
parent 010ea2883c
commit 177cce463d
18 changed files with 220 additions and 78 deletions
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6
libcpp/macro.c
View file

@ -1787,7 +1787,7 @@ replace_args (cpp_reader *pfile, cpp_hashnode *node, cpp_macro *macro,
" in ISO C++98",
NODE_NAME (node),
src->val.macro_arg.arg_no);
else
else if (CPP_OPTION (pfile, cpp_warn_c90_c99_compat))
cpp_error (pfile, CPP_DL_PEDWARN,
"invoking macro %s argument %d: "
"empty macro arguments are undefined"
@ -1795,7 +1795,7 @@ replace_args (cpp_reader *pfile, cpp_hashnode *node, cpp_macro *macro,
NODE_NAME (node),
src->val.macro_arg.arg_no);
}
else if (CPP_OPTION (pfile, cpp_warn_c90_c99_compat)
else if (CPP_OPTION (pfile, cpp_warn_c90_c99_compat) > 0
&& ! macro->syshdr
&& ! cpp_in_system_header (pfile)
&& ! CPP_OPTION (pfile, cplusplus))
@ -2858,7 +2858,7 @@ parse_params (cpp_reader *pfile, cpp_macro *macro)
(pfile, CPP_W_VARIADIC_MACROS,
"anonymous variadic macros were introduced in C99");
}
else if (CPP_OPTION (pfile, cpp_warn_c90_c99_compat)
else if (CPP_OPTION (pfile, cpp_warn_c90_c99_compat) > 0
&& ! CPP_OPTION (pfile, cplusplus))
cpp_error (pfile, CPP_DL_WARNING,
"anonymous variadic macros were introduced in C99");