diff -ur gdb-6.8.orig/gdb/cli/cli-cmds.c gdb-6.8/gdb/cli/cli-cmds.c
--- gdb-6.8.orig/gdb/cli/cli-cmds.c	2008-01-01 22:53:14.000000000 +0000
+++ gdb-6.8/gdb/cli/cli-cmds.c	2008-09-11 15:37:27.000000000 +0100
@@ -318,9 +318,10 @@
 static void
 pwd_command (char *args, int from_tty)
 {
+  char * r;
   if (args)
     error (_("The \"pwd\" command does not take an argument: %s"), args);
-  getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
+  r = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); (void) r;
 
   if (strcmp (gdb_dirbuf, current_directory) != 0)
     printf_unfiltered (_("Working directory %s\n (canonically %s).\n"),
diff -ur gdb-6.8.orig/gdb/inflow.c gdb-6.8/gdb/inflow.c
--- gdb-6.8.orig/gdb/inflow.c	2008-01-01 22:53:11.000000000 +0000
+++ gdb-6.8/gdb/inflow.c	2008-09-11 15:41:47.000000000 +0100
@@ -513,6 +513,7 @@
 new_tty (void)
 {
   int tty;
+  int r;
 
   if (inferior_thisrun_terminal == 0)
     return;
@@ -545,17 +546,17 @@
   if (tty != 0)
     {
       close (0);
-      dup (tty);
+      r = dup (tty); (void) r;
     }
   if (tty != 1)
     {
       close (1);
-      dup (tty);
+      r = dup (tty); (void) r;
     }
   if (tty != 2)
     {
       close (2);
-      dup (tty);
+      r = dup (tty); (void) r;
     }
   if (tty > 2)
     close (tty);
diff -ur gdb-6.8.orig/gdb/main.c gdb-6.8/gdb/main.c
--- gdb-6.8.orig/gdb/main.c	2008-01-05 16:49:53.000000000 +0000
+++ gdb-6.8/gdb/main.c	2008-09-11 15:38:55.000000000 +0100
@@ -116,6 +116,7 @@
 static int
 captured_main (void *data)
 {
+  char *__r;
   struct captured_main_args *context = data;
   int argc = context->argc;
   char **argv = context->argv;
@@ -188,7 +189,7 @@
   line[0] = '\0';		/* Terminate saved (now empty) cmd line */
   instream = stdin;
 
-  getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
+  __r = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); (void) __r;
   current_directory = gdb_dirbuf;
 
   gdb_stdout = stdio_fileopen (stdout);
diff -ur gdb-6.8.orig/gdb/mi/mi-cmd-env.c gdb-6.8/gdb/mi/mi-cmd-env.c
--- gdb-6.8.orig/gdb/mi/mi-cmd-env.c	2008-01-01 22:53:14.000000000 +0000
+++ gdb-6.8/gdb/mi/mi-cmd-env.c	2008-09-11 15:37:54.000000000 +0100
@@ -67,6 +67,7 @@
 enum mi_cmd_result
 mi_cmd_env_pwd (char *command, char **argv, int argc)
 {
+  char *r;
   if (argc > 0)
     error (_("mi_cmd_env_pwd: No arguments required"));
           
@@ -78,7 +79,7 @@
      
   /* Otherwise the mi level is 2 or higher.  */
 
-  getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
+  r = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); (void) r;
   ui_out_field_string (uiout, "cwd", gdb_dirbuf);
 
   return MI_CMD_DONE;
Only in gdb-6.8/gdb: observer.inc
diff -ur gdb-6.8.orig/gdb/top.c gdb-6.8/gdb/top.c
--- gdb-6.8.orig/gdb/top.c	2008-01-01 22:53:13.000000000 +0000
+++ gdb-6.8/gdb/top.c	2008-09-11 15:40:08.000000000 +0100
@@ -1623,12 +1623,13 @@
 void
 gdb_init (char *argv0)
 {
+  char *r;
   if (pre_init_ui_hook)
     pre_init_ui_hook ();
 
   /* Run the init function of each source file */
 
-  getcwd (gdb_dirbuf, sizeof (gdb_dirbuf));
+  r = getcwd (gdb_dirbuf, sizeof (gdb_dirbuf)); (void) r;
   current_directory = gdb_dirbuf;
 
 #ifdef __MSDOS__
diff -ur gdb-6.8.orig/gdb/ui-file.c gdb-6.8/gdb/ui-file.c
--- gdb-6.8.orig/gdb/ui-file.c	2008-01-01 22:53:13.000000000 +0000
+++ gdb-6.8/gdb/ui-file.c	2008-09-11 15:41:05.000000000 +0100
@@ -477,11 +477,12 @@
 static void
 stdio_file_write (struct ui_file *file, const char *buf, long length_buf)
 {
+  int r;
   struct stdio_file *stdio = ui_file_data (file);
   if (stdio->magic != &stdio_file_magic)
     internal_error (__FILE__, __LINE__,
 		    _("stdio_file_write: bad magic number"));
-  fwrite (buf, length_buf, 1, stdio->file);
+  r = fwrite (buf, length_buf, 1, stdio->file); (void) r;
 }
 
 static void
diff -ur gdb-6.8.orig/gdb/utils.c gdb-6.8/gdb/utils.c
--- gdb-6.8.orig/gdb/utils.c	2008-01-01 22:53:13.000000000 +0000
+++ gdb-6.8/gdb/utils.c	2008-09-11 15:40:43.000000000 +0100
@@ -689,6 +689,7 @@
   int quit_p;
   int dump_core_p;
   char *reason;
+  int r;
 
   /* Don't allow infinite error/warning recursion.  */
   {
@@ -704,7 +705,7 @@
 	abort ();	/* NOTE: GDB has only three calls to abort().  */
       default:
 	dejavu = 3;
-	write (STDERR_FILENO, msg, sizeof (msg));
+	r = write (STDERR_FILENO, msg, sizeof (msg)); (void) r;
 	exit (1);
       }
   }