为什么＆＃34;无目标规则错误＆＃34;即使在Android.mk文件中提供目标规则后仍会继续发生？

Question

Iam尝试在NDK项目中配置SKIA库中的CPP文件 错误 make：***即使我在Android.mk文件中提供了目标规则，也没有规则使目标 继续发生。这是我的代码

LOCAL_PATH:=$(call my-dir)
CC=gcc
CC_FLAGS=-I

include $(CLEAR_VARS) # clear out the variables of the previous module

# Name of the module that the app will reference with System.loadLibrary
LOCAL_MODULE := hello_skia_ndk

%.o: %.cpp
        $(CC) -o $@ -c $< $(CC_FLAGS)

# List   source files compiled for this module

PROJECT_FILES:= $(wildcard $(LOCAL_PATH)/*.cpp)
PROJECT_FILES+= helloskia.cpp

LOCAL_SRC_FILES := $(PROJECT_FILES)

# jnigraphics defines the function AndroidBitmap_lockPixels, which we need in order to draw into
# android.graphics.Bitmap

LOCAL_LDLIBS := -ljnigraphics -landroid

include $(BUILD_SHARED_LIBRARY)

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