target-supports.exp (check_weak_available): Return "no" for pdp11.

	* lib/target-supports.exp (check_weak_available): Return "no" for
	pdp11.

From-SVN: r266297

gcc/testsuite/ChangeLog

+2018-11-19  Paul Koning  <ni1d@arrl.net>
+
+	* lib/target-supports.exp (check_weak_available): Return "no" for
+	pdp11.
+
 2018-11-19  Marek Polacek  <polacek@redhat.com>
 
 	PR c++/87781 - detect invalid elaborated-type-specifier.

gcc/testsuite/lib/target-supports.exp

@@ -314,6 +314,12 @@ proc check_weak_available { } {
 	return 1
     }
 
+    # pdp11 doesn't support it
+
+    if { [istarget pdp11*-*-*] } {
+	return 0
+    }
+
     # ELF and ECOFF support it. a.out does with gas/gld but may also with
     # other linkers, so we should try it