Error while compiling lex program

0
votes

I installed Flex 2.5.4a and gcc compiler on windows. I also 've Dev-Cpp. To compile the lex program, I used : flex file.l. Now I got lex.yy.c, which I compiled using gcc compiler : gcc lex.yy.c. It gave an error showing: c:/program files (x86)/codeblocks/mingw/bin/../lib/gcc/mingw32/4.7.1/../../../../mingw32/bin/ld.exe: cannot find -lfl

collect2.exe: error: ld returned 1 exit status though I did include GnuWin32 bin path in path variable in environmental variables.Can someone tell me how to correct this error?

1
gccflex-lexer
possible duplicate of Flex and Yacc - Cannot find - lfl? – Steve Vinoski

1 Answers

3
votes

If you provide a main() and use option noyywrap, you don't need -lfl anymore...

%option noyywrap
%%
  ...your flex
%%
int main(){
   yylex(); 
   return 0;
}