* fixinc/inclhack.def (gnu_types): Improve comment.

From-SVN: r69269

gcc/ChangeLog

@@ -1,3 +1,7 @@
+2003-07-12  Nathanael Nerode  <neroden@gcc.gnu.org>
+
+	* fixinc/inclhack.def (gnu_types): Improve comment.
+
 2003-07-12  Andreas Jaeger  <aj@suse.de>
 
 	* fp-test.c (main): Use ISO C90 prototype.

gcc/fixinc/inclhack.def

@@ -938,7 +938,12 @@ fix = {
 
 
 /*
- * Fix these files to use the same types that we think they should.
+ * Fix these files to use the types we think they should for
+ * ptrdiff_t, size_t, and wchar_t.
+ *
+ * This defines the types in terms of macros predefined by our 'cpp'.
+ * This is supposedly necessary for glibc's handling of these types.
+ * It's probably not necessary for anyone else, but it doesn't hurt.
  */
 fix = {
     hackname  = gnu_types;