[Flex-help] error message

[Pepito C. <pco...@sb...>]

Hi:
   
  I hope you can help me with this small hiccup. Am just experimenting with flex.
   
  I used cygwin to build and run flex-2.5.33.
   
  Flex runs just fine and generated the 'lex.yy.c' c source code as expected, but when I tried to compile the source I received the following message:
   
  $ gcc lex.yy.c
  /cygdrive/c/DOCUME~1/MyName~1.HOM/LOCALS~1/Temp/ccksDvf1.o:lex.yy.c:(.text+0x442): undefined reference to '_yywrap'
  /cygdrive/c/DOCUME~1/MyName~1.HOM/LOCALS~1/Temp/ccksDvf1.o:lex.yy.c:(.text+0xd3b): undefined reference to '_yywrap'
  collect2: ld returned 1 exit status
  $
   
  _yywrap is always coming up in all my compile.
   
  thanks.
   
  picoronejo