PTR_DEMANGLE: add documentation

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

diff --git a/libpthread/nptl/sysdeps/pthread/pthread-functions.h b/libpthread/nptl/sysdeps/pthread/pthread-functions.h
index 3808e4c..0ee39e0 100644 (file)
--- a/libpthread/nptl/sysdeps/pthread/pthread-functions.h
+++ b/libpthread/nptl/sysdeps/pthread/pthread-functions.h
@@ -103,7 +103,7 @@ struct pthread_functions
 extern struct pthread_functions __libc_pthread_functions attribute_hidden;
 extern int __libc_pthread_functions_init attribute_hidden;
 
-#if 0
+#if 0 /* def PTR_DEMANGLE */ /* we did not mangle, so do not demangle */
 # define PTHFCT_CALL(fct, params) \
   ({ __typeof (__libc_pthread_functions.fct) __p;                            \
      __p = __libc_pthread_functions.fct;                                     \