解决mips-openwrt-linux-uclibc-g++.bin: environment variable "STAGING_DIR" not defined

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本文介绍了解决在使用OpenWrt SDK时遇到的环境变量未定义问题的方法。通过确保编译了SDK并正确设置环境变量STAGING_DIR，可以避免在调用工具链时出现错误。

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在Openwrt编译工具链和SDK之后可能报错如下：

zchx@zchx-System-Product-Name:~$ mips-openwrt-linux-g++

mips-openwrt-linux-uclibc-g++.bin: environment variable "STAGING_DIR" not defined

其解决方法很简单，就是编译的时候也选择上编译SDk，在编译好了的SDK中，包含了工具链。这里的工具链就不会报错了。Good TIme！

zchx@zchx-System-Product-Name:~/Openwrt-USE/OpenWrt-SDK-atheros-for-Linux-i686-gcc-4.3.3+cs_uClibc-0.9.30.1/staging_dir/toolchain-mips_gcc-4.3.3+cs_uClibc-0.9.30.1/bin$ ls
ldd                           mips-openwrt-linux-uclibc-addr2line
mips-openwrt-linux-addr2line mips-openwrt-linux-uclibc-ar
mips-openwrt-linux-ar         mips-openwrt-linux-uclibc-as
mips-openwrt-linux-as         mips-openwrt-linux-uclibc-c++
mips-openwrt-linux-c++        mips-openwrt-linux-uclibc-c++filt
mips-openwrt-linux-c++filt    mips-openwrt-linux-uclibc-cpp
mips-openwrt-linux-cpp        mips-openwrt-linux-uclibc-g++
mips-openwrt-linux-g++        mips-openwrt-linux-uclibc-gcc
mips-openwrt-linux-gcc        mips-openwrt-linux-uclibc-gcc-4.3.3
mips-openwrt-linux-gcc-4.3.3 mips-openwrt-linux-uclibc-gccbug
mips-openwrt-linux-gccbug     mips-openwrt-linux-uclibc-gcov
mips-openwrt-linux-gcov       mips-openwrt-linux-uclibc-gprof
mips-openwrt-linux-gprof      mips-openwrt-linux-uclibc-ld
mips-openwrt-linux-ld         mips-openwrt-linux-uclibc-nm
mips-openwrt-linux-nm         mips-openwrt-linux-uclibc-objcopy
mips-openwrt-linux-objcopy    mips-openwrt-linux-uclibc-objdump
mips-openwrt-linux-objdump    mips-openwrt-linux-uclibc-ranlib
mips-openwrt-linux-ranlib     mips-openwrt-linux-uclibc-readelf
mips-openwrt-linux-readelf    mips-openwrt-linux-uclibc-size
mips-openwrt-linux-size       mips-openwrt-linux-uclibc-strings
mips-openwrt-linux-strings    mips-openwrt-linux-uclibc-strip
mips-openwrt-linux-strip
zchx@zchx-System-Product-Name:~/Openwrt-USE/OpenWrt-SDK-atheros-for-Linux-i686-gcc-4.3.3+cs_uClibc-0.9.30.1/staging_dir/toolchain-mips_gcc-4.3.3+cs_uClibc-0.9.30.1/bin$ ./mips-openwrt-linux-g++

然后把staging_dir加入到环境变量中就可以了。

export STAGING_DIR=~/Downloads/OpenWrt-SDK-atheros-for-Linux-i686-gcc-4.3.3+cs_uClibc-0.9.30.1/staging_dir/toolchain-mips_gcc-4.3.3+cs_uClibc-0.9.30.1/bin:$STAGING_DIR

使用eclipse的话，不要使用sudo登陆。直接普通用户登陆