Patch to gcc/LANGUAGES

["Joseph S. Myers" <jsm at polyomino dot org dot uk>]

gcc/LANGUAGES has some information on old changes to the front-end
interface, supposedly to go in a manual of that interface.  Most of this
information described interfaces that have by now changed again (various
functions for front ends to define, replaced by langhooks; unfortunately
the move to langhooks wasn't accompanied by documenting them; only
convert() and builtin_function() now remain as old-style magic function
names for front ends that haven't become langhooks) or was otherwise
obsolete or irrelevant (non-C-family front ends shouldn't used C front end
code, though Chill did).  I've removed this obsolete information; patch
below.  Only a little is left and some of that might also be obsolete.

-- 
Joseph S. Myers               http://www.srcf.ucam.org/~jsm28/gcc/
    jsm@polyomino.org.uk (personal mail)
    jsm28@gcc.gnu.org (Bugzilla assignments and CCs)

Index: ChangeLog
===================================================================
RCS file: /cvs/gcc/gcc/gcc/ChangeLog,v
retrieving revision 2.4468
diff -u -r2.4468 ChangeLog
--- ChangeLog	11 Jul 2004 11:49:13 -0000	2.4468
+++ ChangeLog	11 Jul 2004 11:53:11 -0000
@@ -1,3 +1,7 @@
+2004-07-11  Joseph S. Myers  <jsm@polyomino.org.uk>
+
+	* LANGUAGES: Remove obsolete information.
+
 2004-07-11  Ulrich Weigand  <uweigand@de.ibm.com>
 
 	* config/s390/linux.h (MD_FALLBACK_FRAME_STATE_FOR): For SIGSEGV and 
Index: LANGUAGES
===================================================================
RCS file: /cvs/gcc/gcc/gcc/LANGUAGES,v
retrieving revision 1.12
diff -u -r1.12 LANGUAGES
--- LANGUAGES	27 Sep 2002 12:48:02 -0000	1.12
+++ LANGUAGES	11 Jul 2004 11:53:11 -0000
@@ -12,54 +12,6 @@
   end-of-file.  Frontends which want that behavior should set
   DECL_DEFER_OUTPUT before calling rest_of_decl_compilation.
 
-Aug 31, 1998:
-  The interface to HANDLE_PRAGMA has changed.  It now takes three arguments.
-  The first two are pointers to functions that should be used to read characters
-  from the input stream, and to push them back into the input stream respectively.
-  The third argument is a pointer to a null terminate string which is the first
-  word after #pragma.  The expression supplied by HANDLE_PRAGMA should return
-  nonzero if it parsed and implemented the pragma.  Otherwise it should return
-  zero, and leave the input stream as it was before the expression was evaluated.
-
-  A new back-end definable macro has been added: INSERT_ATTRIBUTES.  This macro
-  allows backend to add attributes to decls as they are created.
-
-Jun 10, 1998:
-  The interface to lang_decode_option has changed. It now uses and argc/argv
-  interface to allow for options that use more than one input string. The new
-  declaration is: int lang_decode_option (int argc, char** argv). It now
-  returns the number of input strings processed, or 0 if the option is
-  unknown.
-
-Jun  7, 1998:
-  Front-ends must now define lang_init_options.  It is safe for this
-  function to do nothing.  See c-lang.c.
-
-Apr 21, 1998:
-  Front ends which link with c-common or other files from the C/C++
-  front-ends may need to handle TI types.  Look for references to
-  [unsigned]int_DI_type_node in your front end.  If you have references
-  to these variables, you'll need up update the front end.
-
-  To update the front end you must mirror all the code which currently
-  deals with intDI_type_node to also handle intTI_type_node.
-
-
-Apr 7, 1998:
-  The interface between toplev.c and the language front ends for opening the
-  source file has changed:
-
-  o init_lex() has been renamed to init_parse (char *filename) where filename
-    is the name of the source file.
-  o The code in toplev.c which opened the source file should be moved to
-    the new init_parse function.
-  o toplev.c now calls finish_parse() instead of closing the source file
-    using fclose(). This should now be done in finish_parse, if necessary.
-
-Apr 1, 1998:
-  Front-ends must now define lang_print_xnode.  It is safe for this
-  function to do nothing.  See c-lang.c.
-
 Feb 1, 1998:
 
   GCC used to store structure sizes & offsets to elements as bitsize
@@ -78,10 +30,6 @@
     When a size in bits is converted into a size in bytes, which is expressed
     in trees, care should be taken to change the tree's type again to sizetype.
 
-    We've updated C, C++, Fortran & Objective-C to work with the new
-    scheme.  Other languages will need to be updated accordingly.
-    Contact amylaar@cygnus.com for additional information.
-
 ?? 1997:
 
   In an effort to decrease cache thrashing and useless loads we've changed the