Add rule to make libtar_static

Change-Id: I9cddde9961e79c4d4905382858ee330b856d6edf
diff --git a/libtar/Android.mk b/libtar/Android.mk
index f936e96..1972573 100644
--- a/libtar/Android.mk
+++ b/libtar/Android.mk
@@ -1,5 +1,6 @@
 LOCAL_PATH := $(call my-dir)
 
+# Build shared library
 include $(CLEAR_VARS)
 
 LOCAL_MODULE := libtar
@@ -19,3 +20,22 @@
 
 include $(BUILD_SHARED_LIBRARY)
 
+# Build static library
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libtar_static
+LOCAL_MODULE_TAGS := eng
+LOCAL_MODULES_TAGS = optional
+LOCAL_CFLAGS = 
+LOCAL_SRC_FILES = append.c block.c decode.c encode.c extract.c handle.c output.c util.c wrapper.c basename.c strmode.c libtar_hash.c libtar_list.c dirname.c
+LOCAL_C_INCLUDES += $(LOCAL_PATH) \
+					external/zlib
+LOCAL_STATIC_LIBRARIES += libz libc
+
+ifeq ($(TWHAVE_SELINUX), true)
+	LOCAL_C_INCLUDES += external/libselinux/include
+	LOCAL_STATIC_LIBRARIES += libselinux
+	LOCAL_CFLAGS += -DHAVE_SELINUX
+endif
+
+include $(BUILD_STATIC_LIBRARY)