crosstool-ng 编译出错Missing: 'i686-pc-linux-gnu-gcj'or 'i686-pc-linux-gnu-gcj' or 'gcj' : either needed

$ct-ng build

[INFO ]  Performing some trivial sanity checks

[INFO ]  Build started 20120819.100858

[INFO ]  Building environment variables

[EXTRA]  Preparing working directories

[ERROR]  Missing: 'i686-pc-linux-gnu-gcj' or 'i686-pc-linux-gnu-gcj' or 'gcj' : either needed!

[00:03] / make: *** [build] Error 1

ubuntu解决方法：

$sudo apt-get install gcj