[cs] patch to not create "output fragment" for C

[Per Bothner <per at bothner dot com>]

I checked the attached patch into the compile-server branch.

This disables for C some stuff that Mike put in for C++ support,
but is (at least for now) undesirable for C.
--
	--Per Bothner
per@bothner.com   http://per.bothner.com/


2003-12-01  Per Bothner  <pbothner@apple.com>

	* c-common.c (create_output_fragment):  Do nothing unless C++, for now.
	(end_output_fragment):  Likewise.
	(activate_output_fragment):  Likewise.
	* toplev.c (finalize):  Zero asm_out_file.

	* toplev.c (server_loop):  Call report_fragmemt_statistics (kludge).

Index: c-common.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/c-common.c,v
retrieving revision 1.438.2.13
diff -u -p -r1.438.2.13 c-common.c
--- c-common.c	1 Dec 2003 06:08:14 -0000	1.438.2.13
+++ c-common.c	2 Dec 2003 07:12:18 -0000
@@ -4842,6 +4842,9 @@ create_output_fragment (void)
 {
   struct c_include_fragment* st;
   cpp_fragment *fragment;
+  if (!lang_hooks.uses_conditional_symtab)
+    return;
+  /* FIXME check server_mode! */
   fragment = xcalloc (1, sizeof (cpp_fragment));
   fragment->name = "<built-in>";
   parse_in->current_fragment = fragment;
@@ -4860,6 +4863,8 @@ create_output_fragment (void)
 void
 end_output_fragment (void)
 {
+  if (!lang_hooks.uses_conditional_symtab)
+    return;
   /* Fold these into cb_exit_fragment as well?!  */
   if (C_FRAGMENT (output_fragment) != current_c_fragment)
     abort ();
@@ -4882,7 +4887,8 @@ void init_output_fragment ()
 void
 activate_output_fragment (void)
 {
-  output_c_fragment->include_timestamp = main_timestamp;
+  if (output_c_fragment != NULL)
+    output_c_fragment->include_timestamp = main_timestamp;
 }
 
 /* Handle extra debugging of C tree nodes.  */
Index: toplev.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/toplev.c,v
retrieving revision 1.813.2.10
diff -u -p -r1.813.2.10 toplev.c
--- toplev.c	1 Oct 2003 01:24:06 -0000	1.813.2.10
+++ toplev.c	2 Dec 2003 07:12:19 -0000
@@ -4366,9 +4366,12 @@ finalize (void)
       fflush (asm_out_file);
       if (ferror (asm_out_file) != 0)
 	fatal_error ("error writing to %s: %m", asm_file_name);
-      if (asm_out_file != stdout
-	  && fclose (asm_out_file) != 0)
-	fatal_error ("error closing %s: %m", asm_file_name);
+      if (asm_out_file != stdout)
+	{
+	  if (fclose (asm_out_file) != 0)
+	    fatal_error ("error closing %s: %m", asm_file_name);
+	  asm_out_file = NULL;
+	}
     }
 
   /* Do whatever is necessary to finish printing the graphs.  */
@@ -4785,7 +4788,7 @@ get_request_from_load_balancer (int *soc
   static int idle_servers[SERVER_MAX];
   static int nservers = 0;
   /* For debugging, turn this off.  */
-  static int do_load_balancing = 1;
+  static int do_load_balancing = 0;
   int fd;
   char xbuf[1];
 
@@ -5103,6 +5106,10 @@ server_loop ()
     }
   else
       fprintf(stderr, "server done\n");
+  { /* Kludge - fails unless linked with c-common.o. */
+    extern void report_fragment_statistics (void);
+    report_fragment_statistics ();
+  }
 #endif
 }