invoke.texi (-fmessage-length=n): Document.

	* invoke.texi (-fmessage-length=n): Document.

	* decl2.c (lang_decode_option): Don't set default message length
	here.
	* lex.c (lang_init_options): Set it here.

From-SVN: r32040

gcc/ChangeLog

+2000-02-17  Mark Mitchell  <mark@codesourcery.com>
+
+	* invoke.texi (-fmessage-length=n): Document.
+
 2000-02-17  Jason Merrill  <jason@casey.cygnus.com>
 
 	* bitmap.c (bitmap_operation): Don't leak bitmap elements.

gcc/cp/ChangeLog

+2000-02-17  Mark Mitchell  <mark@codesourcery.com>
+
+	* decl2.c (lang_decode_option): Don't set default message length
+	here.
+	* lex.c (lang_init_options): Set it here.
+
 2000-02-16  Mark Mitchell  <mark@codesourcery.com>
 
 	Make DECL_CONTEXT mean the class in which a member function was

gcc/cp/decl2.c

@@ -570,9 +570,6 @@ lang_decode_option (argc, argv)
   strings_processed = 0;
 #endif /* ! USE_CPPLIB */
 
-  /* Enable automatic line wrapping by default */
-  set_message_length (72);
-
   if (!strcmp (p, "-ftraditional") || !strcmp (p, "-traditional"))
     /* ignore */;
   else if (p[0] == '-' && p[1] == 'f')
@@ -636,9 +633,9 @@ lang_decode_option (argc, argv)
 	name_mangling_version 
 	  = read_integral_parameter (p + 22, p - 2, name_mangling_version);
       else if (!strncmp (p, "message-length=", 15))
-          set_message_length
-              (read_integral_parameter (p + 15, p -2,
-                                        /* default line-wrap length */ 72));
+	set_message_length
+	  (read_integral_parameter (p + 15, p - 2,
+				    /* default line-wrap length */ 72));
       else if (!strncmp (p, "dump-translation-unit-", 22))
 	{
 	  if (p[22] == '\0')

gcc/invoke.texi

@@ -1130,6 +1130,12 @@ This flag is not useful when compiling with -fvtable-thunks.
 Like all options that change the ABI, all C++ code, @emph{including
 libgcc} must be built with the same setting of this option.
 
+@item -fmessage-length=@var{n}
+Try to format error messages so that they fit on lines of about @var{n}
+characters.  The deafult is 72 characters.  If @var{n} is zero, then to
+line-wrapping will be done; each error message will appear on a single
+line.
+
 @item -fno-implicit-templates
 Never emit code for non-inline templates which are instantiated
 implicitly (i.e. by use); only emit code for explicit instantiations.