-> cc -O -o newspeak lex.yy.c
/tmp/ccHfnHLG.o: In function `yylex':
lex.yy.c:(.text+0x3110): undefined reference to `yywrap'
collect2: ld returned 1 exit status

-> cc -O -lfl -o newspeak lex.yy.c
/tmp/ccduIw5y.o: In function `main':
lex.yy.c:(.text+0x31f3): multiple definition of `main'
/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/libfl.a(libmain.o):/build/buildd/flex-2.5.33/libmain.c:29: first defined here
/usr/bin/ld: Warning: size of symbol `main' changed from 35 in /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/libfl.a(libmain.o) to 43 in /tmp/ccduIw5y.o
/tmp/ccduIw5y.o: In function `yylex':
lex.yy.c:(.text+0x3110): undefined reference to `yywrap'
collect2: ld returned 1 exit status