Revert "Move host functionality to common selinux dir"

This change breaks the Mac build due to no stdio_ext.h

This reverts commit 992200ff0364edcbae2a1b279abe7af7e02596de.

Change-Id: Ic5a20dd4ed41b325174202ce992d557fe09f23da
diff --git a/Android.mk b/Android.mk
index 5bca63c..71206c1 100644
--- a/Android.mk
+++ b/Android.mk
@@ -58,6 +58,20 @@
 include $(BUILD_STATIC_LIBRARY)
 
 include $(CLEAR_VARS)
+LOCAL_CFLAGS := -DHOST
+
+ifeq ($(HOST_OS),darwin)
+LOCAL_CFLAGS += -DDARWIN
+endif
+
+LOCAL_SRC_FILES := $(common_HOST_FILES)
+LOCAL_MODULE:= libselinux
+LOCAL_MODULE_TAGS := eng
+LOCAL_WHOLE_STATIC_LIBRARIES := libpcre
+LOCAL_C_INCLUDES := external/pcre
+include $(BUILD_HOST_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
 LOCAL_SRC_FILES := $(common_SRC_FILES) $(common_HOST_FILES) src/android.c
 LOCAL_MODULE:= libselinux
 LOCAL_MODULE_TAGS := eng
@@ -72,3 +86,19 @@
 LOCAL_CLANG_CFLAGS += -Wno-pointer-bool-conversion
 
 include $(BUILD_SHARED_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_CFLAGS := -DHOST
+
+ifeq ($(HOST_OS),darwin)
+LOCAL_CFLAGS += -DDARWIN
+endif
+
+LOCAL_SRC_FILES := $(common_HOST_FILES)
+LOCAL_MODULE:= libselinux
+LOCAL_MODULE_TAGS := eng
+LOCAL_COPY_HEADERS_TO := $(common_COPY_HEADERS_TO)
+LOCAL_COPY_HEADERS := $(common_COPY_HEADERS)
+LOCAL_WHOLE_STATIC_LIBRARIES := libpcre
+LOCAL_C_INCLUDES := external/pcre
+include $(BUILD_HOST_SHARED_LIBRARY)