1 files changed, 10 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/nptl-signals.h b/sysdeps/unix/sysv/linux/nptl-signals.h
index 7560a21825..01f34c27ec 100644
--- a/sysdeps/unix/sysv/linux/nptl-signals.h
+++ b/sysdeps/unix/sysv/linux/nptl-signals.h
@@ -16,6 +16,8 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#include <signal.h>
+
 /* The signal used for asynchronous cancelation.  */
 #define SIGCANCEL       __SIGRTMIN
 
@@ -29,5 +31,13 @@
 /* Signal used to implement the setuid et.al. functions.  */
 #define SIGSETXID       (__SIGRTMIN + 1)
 
+
+/* Return is sig is used internally.  */
+static inline int
+__nptl_is_internal_signal (int sig)
+{
+  return (sig == SIGCANCEL) || (sig == SIGTIMER) || (sig == SIGSETXID);
+}
+
 /* Used to communicate with signal handler.  */
 extern struct xid_command *__xidcmd attribute_hidden;