re PR driver/44076 (-MT <target> behaves different as -MT<target> (w/o space))

	PR driver/44076
	* opts.h (struct cl_option): Add alias_arg, neg_alias_arg and
	alias_target fields.
	* opt-functions.awk (opt_sanitized_name): Don't handle
	finline-limit=, Wlarger-than= and ftemplate-depth= specially.
	* optc-gen.awk: Generate alias fields.
	* opth-gen.awk: Explicitly give values for OPT_* enum constants.
	Don't generate such constants for aliases.
	* opts-common.c (generate_canonical_option): New.
	(decode_cmdline_option): Handle aliases.  Use
	generate_canonical_option for known options instead of copying the
	input option text.
	* doc/options.texi (Alias): Document.
	* common.opt (W, Wlarger-than-, aux-info=, finline-limit-,
	fstack-check, specs): Mark as aliases.
	* gcc.c (driver_handle_option): Canonicalize -L options to joined
	arguments.
	(driver_handle_option): Don't handle OPT_specs.
	* opts.c (common_handle_option): Don't handle options marked as
	aliases.
	(enable_warning_as_error): Handle aliases.
	* stor-layout.c (layout_decl): Use OPT_Wlarger_than_ instead of
	OPT_Wlarger_than_eq.
	* tree-optimize.c (tree_rest_of_compilation): Use
	OPT_Wlarger_than_ instead of OPT_Wlarger_than_eq.

c-family:
	* c.opt (Wcomments, Werror-implicit-function-declaration,
	ftemplate-depth-, std=c89, std=c9x, std=gnu89, std=gnu9x,
	std=iso9899:1990, std=iso9899:1999, std=iso9899:199x): Mark as
	aliases.
	* c-common.c (option_codes): Use OPT_Wcomment instead of
	OPT_Wcomments.
	* c-opts.c (warning_as_error_callback, c_common_handle_option):
	Don't handle options marked as aliases.

java:
	* lang.opt (CLASSPATH, bootclasspath, classpath, encoding,
	fCLASSPATH=): Mark as Java options and as aliases.
	* jvspec.c (jvgenmain_spec): Don't handle -fCLASSPATH*.
	(lang_specific_driver): Don't handle options marked as aliases.
	* lang.c (java_handle_option): Don't handle OPT_fCLASSPATH_.

testsuite:
	* gcc.dg/cpp/warn-comments-3.c: New.  Based on warn-comments-2.c
	but using -Werror=comment.
	* gcc.dg/cpp/warn-comments.c, gcc.dg/cpp/warn-comments-2.c: Adjust
	expected error messages.

From-SVN: r163770

1 files changed, 0 insertions, 18 deletions

diff --git a/gcc/c-family/c-opts.c b/gcc/c-family/c-opts.c
index b46b0a0..d9b212c 100644
--- a/gcc/c-family/c-opts.c
+++ b/gcc/c-family/c-opts.c
@@ -161,7 +161,6 @@ warning_as_error_callback (int option_index)
 	break;
 
       case OPT_Wcomment:
-      case OPT_Wcomments:
 	cpp_opts->warn_comments = 1;
 	break;
 
@@ -493,7 +492,6 @@ c_common_handle_option (size_t scode, const char *arg, int value,
       break;
 
     case OPT_Wcomment:
-    case OPT_Wcomments:
       cpp_opts->warn_comments = value;
       break;
 
@@ -521,13 +519,6 @@ c_common_handle_option (size_t scode, const char *arg, int value,
       global_dc->warning_as_error_requested = value;
       break;
 
-    case OPT_Werror_implicit_function_declaration:
-      /* For backward compatibility, this is the same as
-	 -Werror=implicit-function-declaration.  */
-      enable_warning_as_error ("implicit-function-declaration", value,
-			       CL_C | CL_ObjC, handlers);
-      break;
-
     case OPT_Wformat:
       set_Wformat (value);
       break;
@@ -752,8 +743,6 @@ c_common_handle_option (size_t scode, const char *arg, int value,
       break;
 
     case OPT_ftemplate_depth_:
-      /* Kept for backwards compatibility.  */
-    case OPT_ftemplate_depth_eq:
       max_tinst_depth = value;
       break;
 
@@ -865,30 +854,23 @@ c_common_handle_option (size_t scode, const char *arg, int value,
 	set_std_cxx0x (code == OPT_std_c__0x /* ISO */);
       break;
 
-    case OPT_std_c89:
     case OPT_std_c90:
-    case OPT_std_iso9899_1990:
     case OPT_std_iso9899_199409:
       if (!preprocessing_asm_p)
 	set_std_c89 (code == OPT_std_iso9899_199409 /* c94 */, true /* ISO */);
       break;
 
-    case OPT_std_gnu89:
     case OPT_std_gnu90:
       if (!preprocessing_asm_p)
 	set_std_c89 (false /* c94 */, false /* ISO */);
       break;
 
     case OPT_std_c99:
-    case OPT_std_c9x:
-    case OPT_std_iso9899_1999:
-    case OPT_std_iso9899_199x:
       if (!preprocessing_asm_p)
 	set_std_c99 (true /* ISO */);
       break;
 
     case OPT_std_gnu99:
-    case OPT_std_gnu9x:
       if (!preprocessing_asm_p)
 	set_std_c99 (false /* ISO */);
       break;