Undefined Reference To yywrap

Question

I have a simple \"language\" that I\'m using Flex(Lexical Analyzer), it\'s like this:

/* Just like UNIX wc */
%{
int chars = 0;
int words = 0;
int lines = 0;         


        

Answer 1

flex doesn't always install with its development libraries (which is odd, as it is a development tool). Install the libraries, and life is better.

On Redhat base systems:

yum -y install flex-devel
./configure && make

On Debian based systems

sudo apt-get install libfl-dev