elf: Fix missing include in test case [BZ #27136]

Broken test was introduced in

  commit 8f85075a2e9c26ff7486d4bbaf358999807d215c
  elf: Add a DTV setup test [BZ #27136]

diff --git a/elf/tst-tls20.c b/elf/tst-tls20.c
index ac5f8c8d39b66dd610f7eda638b5fd830bd10e8d..9977ec803208b9c83141cce7fe3e9c277e8ef2aa 100644 (file)
--- a/elf/tst-tls20.c
+++ b/elf/tst-tls20.c
@@ -21,6 +21,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <support/check.h>
+#include <support/support.h>
 #include <support/xdlfcn.h>
 #include <support/xthread.h>