initial commit, taken and modified from linaro/insignal
diff --git a/exynos4/hal/Android.mk b/exynos4/hal/Android.mk
new file mode 100644
index 0000000..edb7a4a
--- /dev/null
+++ b/exynos4/hal/Android.mk
@@ -0,0 +1,4 @@
+ifeq ($(TARGET_BOARD_PLATFORM),exynos4)
+exynos4_dirs := libfimg libhwconverter liblights libs5pjpeg libsensors libswconverter libump
+include $(call all-named-subdir-makefiles,$(exynos4_dirs))
+endif