patching libziparchive.mk to build in yocto environment.

Changes include:
Introduced an output folder which will keep all the outputs from the
android-tools.

Adding an include file that is setting the common flags.
Changed the cppflag to include the headers from other components
of android-tools

Modified LDflags so that the libraries that are coming from other android-tools
are searched in the output folder.

Modified the build rule so that it outputs the binary to the OUT_DIR

Signed-off-by: Nisha Parrakat <Nisha.Parrakat@kpit.com>

Upstream-Status: Pending

--- git/system/core/debian/libziparchive.mk	2021-05-17 08:13:41.684459540 +0000
+++ git/system/core/debian/libziparchive.mk	2021-05-17 08:16:19.293722572 +0000
@@ -1,3 +1,4 @@
+include ../../rules_yocto.mk
 NAME = libziparchive
 SOURCES = zip_archive.cc \
           zip_archive_stream_entry.cc\
@@ -5,14 +6,15 @@
 SOURCES := $(foreach source, $(SOURCES), libziparchive/$(source))
 CXXFLAGS += -std=gnu++17
 CPPFLAGS += -DZLIB_CONST -D_FILE_OFFSET_BITS=64 \
-            -Iinclude -Ibase/include -Ilibziparchive/include
+            -Iinclude -Ibase/include -Ilibziparchive/include -I$(OUT_DIR)/usr/include/
 LDFLAGS += -shared -Wl,-soname,$(NAME).so.0 \
            -Wl,-rpath=/usr/lib/$(DEB_HOST_MULTIARCH)/android \
-           -lz -L. -llog -lbase
+           -lz -L$(OUT_DIR)/usr/lib/$(DEB_HOST_MULTIARCH)/android -llog -lbase 
 
 build: $(SOURCES)
-	$(CXX) $^ -o $(NAME).so.0 $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS)
-	ln -s $(NAME).so.0 $(NAME).so
+	$(CXX) $^ -o $(OUT_DIR)/usr/lib/$(DEB_HOST_MULTIARCH)/android/$(NAME).so.0 $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS)	
+	ln -sf $(NAME).so.0 $(OUT_DIR)/usr/lib/$(DEB_HOST_MULTIARCH)/android/$(NAME).so
+	cp -r libziparchive/include/* $(OUT_DIR)/usr/include/
 
 clean:
-	$(RM) $(NAME).so*
+	$(RM) $(OUT_DIR)/usr/lib/$(DEB_HOST_MULTIARCH)/android/$(NAME).so*