--- git/system/extras/debian/libfec.mk	2021-05-17 06:55:51.973044031 +0000
+++ git/system/extras/debian/libfec.mk	2021-05-17 06:56:41.940185413 +0000
@@ -1,3 +1,4 @@
+include ../../rules_yocto.mk
 NAME = libfec
 
 # copied from libfec/Android.bp
@@ -12,20 +13,21 @@
 CXXFLAGS += -fno-strict-aliasing -std=g++17
 CPPFLAGS += \
             -Iext4_utils/include \
-            -Ilibfec/include \
+            -Ilibfec/include -I $(OUT_DIR)/usr/include \
             -D_GNU_SOURCE -DFEC_NO_KLOG -D_LARGEFILE64_SOURCE
 LDFLAGS += -shared -Wl,-soname,$(NAME).so.0 \
            -Wl,-rpath=/usr/lib/$(DEB_HOST_MULTIARCH)/android \
-           -L/usr/lib/$(DEB_HOST_MULTIARCH)/android \
+           -L$(OUT_DIR)/usr/lib/$(DEB_HOST_MULTIARCH)/android \
            -lbase -lsparse -lselinux
 
 build: $(COBJECTS) $(CXXOBJECTS)
-	mkdir -p $(OUT_DIR)
-	$(CXX) $^ -o $(OUT_DIR)/$(NAME).so.0 $(LDFLAGS)
-	ln -s $(NAME).so.0 $(OUT_DIR)/$(NAME).so
+	mkdir -p $(OUT_DIR)/usr/lib/$(DEB_HOST_MULTIARCH)/android
+	$(CXX) $^ -o $(OUT_DIR)/usr/lib/$(DEB_HOST_MULTIARCH)/android/$(NAME).so.0 $(LDFLAGS)
+	ln -sf $(NAME).so.0 $(OUT_DIR)/usr/lib/$(DEB_HOST_MULTIARCH)/android/$(NAME).so
+	cp -r libfec/include/* $(OUT_DIR)/usr/include/
 
 clean:
-	$(RM) $(CXXOBJECTS) $(COBJECTS) $(NAME).so*
+	$(RM) $(CXXOBJECTS) $(COBJECTS) $(OUT_DIR)/usr/lib/$(DEB_HOST_MULTIARCH)/android/$(NAME).so*
 
 $(COBJECTS): %.o: %.c
 	$(CC) $< -o $@ $(CFLAGS) $(CPPFLAGS)