undefined reference to `yylex'

[colinaaa]

This problem is caused by c++ library virus c library. See here.

The solution is quite simple. Just link lexer with the static lc library.

Edit the Makefile where lexer is built:

LDFLAGS= -static

lexer: ${OBJS}
        ${CC} ${LDFLAGS} ${CFLAGS} ${OBJS} ${LIB} -o lexer

[younghojan]

This problem is caused by c++ library virus c library. See here.

The solution is quite simple. Just link lexer with the static lc library.

Edit the Makefile where lexer is built:

LDFLAGS= -static

lexer: ${OBJS}
        ${CC} ${LDFLAGS} ${CFLAGS} ${OBJS} ${LIB} -o lexer

thx! it works for me