LFS chroot后装glibc时编译出错/bin/sh: command substitution: line 3: syntax error near unexpected token `)

LFS version 7.1 

进行到第6章重新编译glibc时报

/bin/sh: command substitution: line 3: syntax error near unexpected token `)

百思不得其解.

最终 uninstall bash 4.2

重新编译 一个bash 4.1, make install 后重新chroot 再编译 glibc.

居然成功了. 不容易!