Linux内核或者u-boot进行make menuconfig的时候，如果系统上没有安装ncurses，就会出现以下报错
*** Unable to find the ncurses libraries or the
*** required header files.
*** 'make menuconfig' requires the ncurses libraries.
***
*** Install ncurses (ncurses-devel or libncurses-dev
*** depending on your distribution) and try again.
***
scripts/kconfig/Makefile:229: recipe for target 'scripts/kconfig/dochecklxdialog' failed
make[1]: *** [scripts/kconfig/dochecklxdialog] Error 1
Makefile:503: recipe for target 'menuconfig' failed
make: *** [menuconfig] Error 2
解决方案：
sudo apt-get install libncurses5-dev
关于ncurses
libncurses这些库是基于系统用来在显示器上显示文本. 一个例子就是,ncurses用在内核的"make menuconfig"进程中。
libform 在ncurses中使用表格；
libmenu* 在ncurses中使用菜单；
libpanel*在ncurses中使用面板。
Ncurses 依赖于: Bash, Binutils, Coreutils, Diffutils, Gawk, GCC, Glibc, Grep, Make, Sed.