ehlo,
glibc contains two versions of finction stpncpy
sh-4.2$ nm --dynamic --defined-only /lib64/libc.so.6 | grep stpncpy
0000003ce1c89b00 i stpncpy
0000003ce1c89b00 i __stpncpy
0000003ce1d040a0 T __stpncpy_chk
We should use more portable version of stpncpy without prefix with underscores.
The function __stpncpy was used in initial veersion
e65c65fc710fa030bfb8319efc43fcdc9ce5a26f, which was based on
http://people.redhat.com/drepper/SHA-crypt.txt
patch is simple replacement "s/__stpncpy/stpncpy/"
LS