commit 3cc652e951c71785032019fec82e3b8543d85305
Author: Mike Frysinger <vapier@gentoo.org>
Date:   Fri Sep 18 13:49:08 2015 -0400

    timezone: fix parallel check failures
    
    The XT testdata install rules expect the testdata dir to already exist in
    the build tree, but it doesn't actually create it.  Instead, it relies on
    the build-testdata define happening to be executed before it (which runs
    zic which creates the dir).  When we run in parallel though, it's easy to
    hit a failure:
    $ cd timezone
    $ rm -rf $objdir/timezone/testdata
    $ make check -j
    ...
    cp testdata/XT1 .../timezone/testdata/XT1
    cp: cannot create regular file '.../timezone/testdata/XT1': No such file or directory
    Makefile:116: recipe for target '.../timezone/testdata/XT1' failed
    make: *** [.../timezone/testdata/XT1] Error 1
    make: *** Waiting for unfinished jobs....

Index: b/timezone/Makefile
===================================================================
--- a/timezone/Makefile
+++ b/timezone/Makefile
@@ -123,6 +123,7 @@ $(testdata)/Asia/Tokyo: asia $(zic-deps)
 	$(build-testdata)
 
 $(testdata)/XT%: testdata/XT%
+	$(make-target-directory)
 	cp $< $@
 
 $(objpfx)tzselect: tzselect.ksh $(common-objpfx)config.make