Fix tst-timezone race (bug 14096).

I observed a failure of timezone/tst-timezone with the same symptoms
as reported in bug 14096.

I was unable to reproduce the failure on testing again.  However, from
inspection, the cause is as follows.  tst-timezone uses time zones
compiled from the northamerica file, but has no dependency on any such
zones, so with a parallel build it is possible that they do not get
compiled until after tst-timezone is run.  This patch adds a
dependency on the compiled America/New_York zone (the one used as a
makefile target to cause such zones to be compiled, rather than one
which is actually used in that test) to fix the race.

Tested for x86_64.

	[BZ #14096]
	* timezone/Makefile ($(objpfx)tst-timezone.out): Depend on
	America/New_York.

1 files changed, 6 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 1106110d62..b9c7e28f4c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2017-06-07  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #14096]
+	* timezone/Makefile ($(objpfx)tst-timezone.out): Depend on
+	America/New_York.
+
 2017-06-07  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* sysdeps/x86_64/multiarch/ifunc-sse4_1.h: Removed and folded