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

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

To Michele:
Thank you very much for your reply.

There is no .ll file in my xsupplicant project, which is a open source project. Actually, xsupplicant needs flex (and also bison) to be installed.

There  are so many output when I try the make command after I run 'make clean', so I put here only the related results.
...
Making all in doc
make[1]: Entering directory `/open1x/xsupplicant-1.2.8/doc'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/open1x/xsupplicant-1.2.8/doc'
Making all in drivers
make[1]: Entering directory `/open1x/xsupplicant-1.2.8/drivers'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/open1x/xsupplicant-1.2.8/drivers'
Making all in gui_tools
make[1]: Entering directory `/open1x/xsupplicant-1.2.8/gui_tools'
Making all in cli
make[2]: Entering directory `/open1x/xsupplicant-1.2.8/gui_tools/cli'
Making all in xsup_set_pwd
make[3]: Entering directory `/open1x/xsupplicant-1.2.8/gui_tools/cli/xsup_set_pwd'
gcc -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE=\"xsupplicant\" -DVERSION=\"1.2.8\" -DSTDC_HEADERS=1 -DLILENDIAN=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DNO_PWD_RESET=1 -DOPENSSL_NO_KRB5=1 -DLINUX=1 -DHAVE_SYS_SOCKET_H=1 -DHAVE_IWLIB_H=1 -DHAVE_LIBCRYPTO=1 -DHAVE_LIBSSL=1 -DLINUX_FRAMER=1   -I. -I.     -g -O2 -Wall  -c `test -f 'xsup_set_pwd.c' || echo './'`xsup_set_pwd.c
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




> We can give more accurate indications if you run "make clean" and than"make", and post here the whole output.