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# 导入通用编译规则
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include $(TOPDIR)/rules.mk
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# name和version用来定义编译目录名$(PKG_BUILD_DIR)]
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PKG_NAME:=helloworld2
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PKG_VERSION:=1.0
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PKG_RELEASE:=1
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#PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME) # 也可以直接定义编译目录名，代替默认的目录名
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# 导入包定义
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include $(INCLUDE_DIR)/package.mk
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# 包定义：定义我们的包在menuconfig中的位置
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# Makefile中的define语法可以理解为函数，用于定义命令集合
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define Package/helloworld2
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SECTION:=examples
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CATEGORY:=Examples
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TITLE:=helloworld2, learn from example.
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endef
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# 包描述：关于我们包的更详细的描述
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define Package/helloworld2/description
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A simple helloworld2 example, my first openwrt package example.
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endef
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# 编译准备. 必须使用tab缩进，表示是可执行的命令
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define Build/Prepare
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echo "Here is Build/Prepare"
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mkdir -p $(PKG_BUILD_DIR)
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cp ./src/* $(PKG_BUILD_DIR)/
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endef
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# 安装
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define Package/helloworld2/install
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$(INSTALL_DIR) $(1)/usr/bin
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$(INSTALL_BIN) $(PKG_BUILD_DIR)/helloworld2 $(1)/usr/bin
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endef
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# 这一行总是在最后
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$(eval $(call BuildPackage,helloworld2))
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