NPTL: Conditionalize some sanity tests for SIGCANCEL/SIGSETXID.

ChangeLog

@@ -1,5 +1,10 @@
 2015-02-06  Roland McGrath  <roland@hack.frob.com>
 
+	* nptl/tst-cancel25.c (tf2): Test for SIGCANCEL being blocked only if
+	it's defined.
+	* nptl/tst-signal7.c (do_test): Test SIGCANCEL only if it's defined.
+	Test SIGSETXID only if it's defined.
+
 	* nptl/tst-locale1.c (useless): Use SIGRTMIN only if it's defined.
 
 	* rt/tst-timer2.c (do_test): Don't initialize SIGEV.sigev_signo, which

nptl/tst-cancel25.c

@@ -11,6 +11,7 @@ static pthread_t th2;
 static void *
 tf2 (void *arg)
 {
+#ifdef SIGCANCEL
   sigset_t mask;
   if (pthread_sigmask (SIG_SETMASK, NULL, &mask) != 0)
     {
@@ -22,6 +23,7 @@ tf2 (void *arg)
       puts ("SIGCANCEL blocked in new thread");
       exit (1);
     }
+#endif
 
   /* Sync with the main thread so that we do not test anything else.  */
   int e = pthread_barrier_wait (&b);

nptl/tst-signal7.c

@@ -27,6 +27,7 @@ do_test (void)
 {
   int result = 0;
 
+#ifdef SIGCANCEL
   errno = 0;
   if (sigaction (SIGCANCEL, NULL, NULL) == 0)
     {
@@ -38,7 +39,9 @@ do_test (void)
       puts ("sigaction(SIGCANCEL) did not set errno to EINVAL");
       result = 1;
     }
+#endif
 
+#ifdef SIGSETXID
   errno = 0;
   if (sigaction (SIGSETXID, NULL, NULL) == 0)
     {
@@ -50,6 +53,7 @@ do_test (void)
       puts ("sigaction(SIGSETXID) did not set errno to EINVAL");
       result = 1;
     }
+#endif
 
   return result;
 }