记录make menuconfig发生的错误！

1. 错误

jiejie@embedfire_dev:~/linux/linux-stable$ make menuconfig
  HOSTCC  scripts/basic/fixdep
  UPD     scripts/kconfig/mconf-cfg
  HOSTCC  scripts/kconfig/mconf.o
  HOSTCC  scripts/kconfig/lxdialog/checklist.o
  HOSTCC  scripts/kconfig/lxdialog/inputbox.o
  HOSTCC  scripts/kconfig/lxdialog/menubox.o
  HOSTCC  scripts/kconfig/lxdialog/textbox.o
  HOSTCC  scripts/kconfig/lxdialog/util.o
  HOSTCC  scripts/kconfig/lxdialog/yesno.o
  HOSTCC  scripts/kconfig/confdata.o
  HOSTCC  scripts/kconfig/expr.o
  LEX     scripts/kconfig/lexer.lex.c
/bin/sh: 1: flex: not found
scripts/Makefile.lib:196: recipe for target 'scripts/kconfig/lexer.lex.c' failed
make[1]: *** [scripts/kconfig/lexer.lex.c] Error 127
Makefile:561: recipe for target 'menuconfig' failed
make: *** [menuconfig] Error 2

原因：需要使用lex和yacc

解决：

sudo apt-get install flex

2. 如果出现

‘make menuconfig’ requires the ncurses libraries. 

如果使用make menuconfig的方式配置内核，又碰巧系统没有安装ncurses库（ubuntu系统默认就没有安装此库）
那么尝试安装 ncurses

sudo apt-get install libncurses5-dev