Re: [Flex-help] undefined reference to 'yylex'

[liugongquan123 <liu...@16...>]

When I try make,I got the following result, hope it is helpful.

...
Making all in xsup_set_pwd
make[3]: Entering directory `/open1x/xsupplicant-1.2.8/gui_tools/cli/xsup_set_pwd'
gcc  -g -O2 -Wall    -o xsup_set_pwd  xsup_set_pwd.o  -lfl -liw -lm -L../../../lib/libxsupgui -lxsupgui -lssl -lcrypto 
/usr/local/lib/libfl.so: undefined reference to `yylex'
collect2: ld returned 1 exit status
make[3]: *** [xsup_set_pwd] Error 1
make[3]: Leaving directory `/open1x/xsupplicant-1.2.8/gui_tools/cli/xsup_set_pwd'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/open1x/xsupplicant-1.2.8/gui_tools/cli'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/open1x/xsupplicant-1.2.8/gui_tools'
make: *** [all-recursive] Error 1

At 2014-04-10 19:43:21,"Will Estes" <wes...@gm...> wrote:
>Would you post the transcript of the make run? It'd help to see the command line generated to link the program.
>
>On Thursday, 10 April 2014,  5:43 pm +0800, liugongquan123 <liu...@16...> wrote:
>
>> Hi all:
>> To make my xsupplicant(1.2.8) works, I had flex-2.5.39,openssl,wireless_tools and bison-3.0 installed.
>> But there are errors when I try (xsupplicant) make ,it says:
>> /usr/local/lib/libfl.so:undefined reference to 'yylex'
>> collect2:ld returned 1 exit status
>> As I can see, yylex() is defined in /flex-2.5.39/yylex.c, and "/usr/local/lib/libfl.so " is 
>> installed by flex "make install", why there are such errors,and how to resolve it?
>> 
>> 
>> Thanks alot!
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>
>-- 
>Will Estes (wl...@us...)
>Flex Project Maintainer
>http://flex.sourceforge.net/