Description: Fix test-rwlock1 when --as-needed is the default.

Author: Michael Hudson-Doyle <michael.hudson@ubuntu.com>

Forwarded: no

Last-Update: 2018-07-25

---

This patch header follows DEP-3: http://dep.debian.net/deps/dep3/

--- a/libmissing/tests/test-rwlock1.c

+++ b/libmissing/tests/test-rwlock1.c

@@ -54,7 +54,10 @@

 #define SUCCEED() exit (0)

 #define FAILURE() exit (1)

-#define UNEXPECTED(n) (fprintf (stderr, "Unexpected outcome %d\n", n), abort ())

+/* The pointless reference to errno below is to ensure that the test binary

+ * gets a DT_NEEDED for libpthread even if the link is done with --as-needed

+ * (which is the default in Ubuntu) */

+#define UNEXPECTED(n) (fprintf (stderr, "Unexpected outcome %d errno %d\n", n, errno), abort ())

 /* The main thread creates the waiting writer and the requesting reader threads

    in the default way; this guarantees that they have the same priority.