Busy Box [bug -fix]

[Patrick S]

Hi, Developers,

Busybox is a great piece of software I have every seen!.

I recently use buildroot to build embedded linux, during the process, it
gives me the following errors:

------------------------------------------------------
[sp at spf-pc5-linux busybox]$make
      ....
     LINK busybox_unstripped
/home/sp/buildroot/build_arm/busybox/libbusybox.so: undefined reference to
`llist_free_one'
collect2: ld returned 1 exit status
make[1]: *** [busybox_unstripped] error 1
make: *** [_all] error 2
------------------------------------------------------

I found the helper function has some incorrectness:  libbb/list.c

the #ifdef is for every single function, which is fine, however,
L_llst_freerequires the
L_llist_free_one to be defined as well.
What I did was to move the function llist_free_one into the bracket defined
by #ifdef L_llist_free, and remove the block #ifdef L_llist_free_one

attached is the patch for your convenience.  (created by diff -Naur )

- Patrick
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