Mark fortified __FD_ELT as extension

diff --git a/ChangeLog b/ChangeLog
index dddb628..e512bbb 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-12-02  Andreas Schwab  <schwab@redhat.com>
+
+       * misc/bits/select2.h (__FD_ELT): Mark as extension.  Add
+       parenthesis.
+
 2011-12-01  Andreas Schwab  <schwab@redhat.com>
 
        * sysdeps/unix/sysv/linux/futimes.c: Truncate time values when

diff --git a/misc/bits/select2.h b/misc/bits/select2.h
index 37c4827..a7ce1b4 100644 (file)
--- a/misc/bits/select2.h
+++ b/misc/bits/select2.h
@@ -27,7 +27,8 @@ extern unsigned long int __fdelt_warn (unsigned long int __d)
   __warnattr ("bit outside of fd_set selected");
 #undef __FD_ELT
 #define        __FD_ELT(d) \
-  ({ unsigned long int __d = d;                                                    \
+  __extension__                                                                    \
+  ({ unsigned long int __d = (d);                                          \
      (__builtin_constant_p (__d)                                           \
       ? (__d >= __FD_SETSIZE                                               \
         ? __fdelt_warn (__d) : (__d / __NFDBITS))                          \