请问 lex是干什么的
发表于 ： 2005-10-30 19:44
我自己在编译PHP时，configure时用的命令是
却有如下得输出，不知是怎么回事
请问lex是干什么的？
代码： 全选
./configure --with-apxs2=/usr/local/apache2/bin/apxs --with-mysql
代码： 全选
checking for gawk... no
checking for mawk... mawk
checking for bison... no
checking for byacc... no
configure: warning: You will need bison if you want to regenerate the PHP parsers.
checking for flex... lex
checking for yywrap in -ll... no
checking lex output file root... ./configure: line 2425: lex: command not found
configure: error: cannot find output from lex; giving up