标签（空格分隔）：硬件开发 Linux
说明：本次主要参考了百度经验-ubuntu16.04编译OpenWrt环境搭建，个人觉得还有优化的地方。
安装依赖
经过测试，发现大部分在ubuntu16.04系统中就已经安装好了，只需再安装以下几个依赖:
sudo apt-get install flex
sudo apt-get install bison
sudo apt-get install autoconf
sudo apt-get install texinfo
sudo apt-get install subversion
sudo apt-get install libncurses5-dev
sudo apt-get install git-core
sudo apt-get install asciidoc
下载源码
从官方源下载:
git clone git://git.openwrt.org/15.05/openwrt.git，下载时间比较漫长，请耐心等待。
下载完成后需要修改目录的权限，sudo chmod 777 openwrt
添加软件扩展包：
cd openwrt
可以找到feeds.conf.default文件，将feeds.conf.default修改为feeds.conf，使用以下命令：cp feeds.conf.default feeds.conf得到feeds.conf文件
更新扩展，安装扩展：
./scripts/feeds update -a
./scripts/feeds install -a
系统提示：
WARNING: No feed for package 'librt' found, maybe it's already part of the standard packages?
WARNING: No feed for package 'libpthread' found, maybe it's already part of the standard packages?
WARNING: No feed for package 'lua' found, maybe it's already part of the standard packages?
WARNING: No feed for package 'libc' found, maybe it's already part of the standard packages?
WARNING: No feed for package 'libssp' found, maybe it's already part of the standard packages?
编译源码
测试下编译环境，使用命令：
make defconfig
系统提示：
Build dependency: Please install the openssl library (with development headers)
/home/kevinfan/openwrt/openwrt/include/prereq.mk:12: recipe for target 'prereq' failed
Prerequisite check failed. Use FORCE=1 to override.
/home/kevinfan/openwrt/openwrt/include/toplevel.mk:151: recipe for target 'staging_dir/host/.prereq-build' failed
make: *** [staging_dir/host/.prereq-build] Error 1
请安装openssl库:
sudo apt-get install openssl
sudo apt-get install libssl-dev
重新测试下编译环境，使用命令：
make defconfig
系统提示：configuration written to .config（配置写入config）
接着我们输入命令：
make menuconfig
如果一切正常，会出现一个配置菜单，可以选择要编译的固件平台、型号，还能选择固件中要添加的功能和组件，至此编译环境就搭建好了。
