ltp: fix makefile race

There is a Makefile dependency race causing occasional build failures:

*** No rule to make target `.../work/core2-poky-linux/ltp/20130904-r0/git/testcases/kernel/include/linux_syscall_numbers.h.23161.sh', needed by `linux_syscall_numbers.h'.  Stop.

This is due to a bad dependency wildcard that is matching more than the one file
it should match, so replace it with a concrete filename.

(From OE-Core rev: 639ecfb578ff926f5deddb984f4f8600e161e22a)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/ltp/ltp/regen-makefile.patch

@@ -0,0 +1,22 @@
+Fix the dependencies for linux_syscall_numbers.h where in a parallel build it was
+finding the temporary file linux_syscall_numbers.h.[pid].sh (where sh is an
+architecture name).  Instead don't wildcard *.sh as the only .sh we care about
+here is regen.sh, so hard-code that.
+
+Upstream-Status: Pending
+Signed-off-by: Ross Burton <ross.burton@intel.com>
+
+diff --git a/testcases/kernel/include/Makefile b/testcases/kernel/include/Makefile
+index db21a2a..585eb5e 100644
+--- a/testcases/kernel/include/Makefile
++++ b/testcases/kernel/include/Makefile
+@@ -28,7 +28,7 @@ INSTALL_DIR		:= $(includedir)
+ 
+ MAKE_TARGETS		:= linux_syscall_numbers.h
+ 
+-linux_syscall_numbers.h: $(wildcard $(abs_srcdir)/*.sh $(abs_srcdir)/*.in)
+-	$(SHELL) "$(abs_srcdir)/regen.sh"
++linux_syscall_numbers.h: $(abs_srcdir)/regen.sh $(wildcard $(abs_srcdir)/*.in)
++	$(SHELL) "$<"
+ 
+ include $(top_srcdir)/include/mk/generic_leaf_target.mk

meta/recipes-extended/ltp/ltp_20130904.bb

@@ -23,6 +23,7 @@ DEPENDS = "attr libaio libcap acl openssl"
 
 SRC_URI = "git://github.com/linux-test-project/ltp.git \
            file://0001-Rename-runtests_noltp.sh-script-so-have-unique-name.patch \
+           file://regen-makefile.patch \
 "
 
 SRCREV = "a8c42db5f9314211811c36275a21f83902830dc5"