Use FATAL_EXIT_CODE rather than hardcoded 1 for fatal error.

(main): Flush stdout and and check for errors prior to termination;
end with call to exit rather than return from main, as with gen*.c.

From-SVN: r6078

gcc/bi-arity.c

@@ -54,6 +54,10 @@ main ()
 	  printf ("0");
 	printf ("}},\n");
       }
+
+  fflush (stdout);
+  exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
+  /* NOTREACHED */
   return 0;
 }
 
@@ -68,7 +72,7 @@ xmalloc (nbytes)
   if (!tmp)
     {
       fprintf (stderr, "can't allocate %d bytes (out of virtual memory)\n", nbytes);
-      exit (1);
+      exit (FATAL_EXIT_CODE);
     }
 
   return tmp;

gcc/bi-opcode.c

@@ -50,6 +50,9 @@ enum bytecode_opcode\n{");
   else
     fprintf (stderr, "(Number of opcodes is %d)\n", i);
 
+  fflush (stdout);
+  exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
+  /* NOTREACHED */
   return 0;
 }
 
@@ -64,7 +67,7 @@ xmalloc (nbytes)
   if (!tmp)
     {
       fprintf (stderr, "can't allocate %d bytes (out of virtual memory)\n", nbytes);
-      exit (1);
+      exit (FATAL_EXIT_CODE);
     }
 
   return tmp;

gcc/bi-opname.c

@@ -33,6 +33,10 @@ main()
   for (d = defs; d; d = d->next)
     for (v = d->variations; v; v = v->next)
       printf("\"%s%s\",\n", d->basename, v->name);
+
+  fflush (stdout);
+  exit (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
+  /* NOTREACHED */
   return 0;
 }
 
@@ -47,7 +51,7 @@ xmalloc (nbytes)
   if (!tmp)
     {
       fprintf (stderr, "can't allocate %d bytes (out of virtual memory)\n", nbytes);
-      exit (1);
+      exit (FATAL_EXIT_CODE);
     }
 
   return tmp;