when using flex.I have compleleted my test.l and use the command
flex test.l
the output file is lex.yy.c
then I use gcc -o test lex.yy.c -ll to compiler the file.
but there is the error msg:
/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/bin/ld: cannot find -ll
collect2: ld returned 1 exit status
the I found that the flex is not support the -ll lib,and we should use -lfl.
or we can define int yywrap() ourselves and needn't to link the -ll lib.
tip:I use yacc& lex in cygwin.cygwin will not install flex by default setting,you should check the flex lib by yourself
在cygwin中使用flex和bison的时候，突然发现gcc的时候不能链接-ll库,我们可以采用-lfl来替代-ll库.，后来在yacc &lex 2nd的时候发现。我们可以自己定义wwwrap()函数而不用链接其它的库。
注意：安装cygwin的时候并不会默认安装flex，应该在安装cygwin的时候把flex勾选上，然后才可以链接 -lfl
解决了你的问题了么？
