Use --partial-loads-ok=yes with valgrind.

ChangeLog

+2014-01-04  Niels Möller  <nisse@lysator.liu.se>
+
+	* testsuite/Makefile.in (VALGRIND): Added --partial-loads-ok=yes,
+	needed for the way unaligned data is handled in, e.g., memxor.
+
 2014-01-03  Niels Möller  <nisse@lysator.liu.se>
 
 	* shadata.c (main): Zero-pad output values to 8 hex digits.

testsuite/Makefile.in

@@ -104,7 +104,9 @@ $(TARGETS) $(EXTRA_TARGETS): testutils.$(OBJEXT) ../nettle-internal.$(OBJEXT) \
 #   make check EMULATOR='$(VALGRIND)'
 #   make check EMULATOR='$(VALGRIND) --log-fd=3' 3>valgrind.log
 
-VALGRIND = valgrind --error-exitcode=1 --leak-check=full --show-reachable=yes
+# --partial-loads-ok=yes is needed for memxor's handling of unaligned
+# data.
+VALGRIND = valgrind --error-exitcode=1 --leak-check=full --partial-loads-ok=yes --show-reachable=yes
 
 # The PATH update is for locating dlls on w*ndows.
 check: $(TS_ALL)