[Pkg-shadow-devel] Problem configuring shadow 4.1.4.2

[Pierre]

[...]
checking for pam_start in -lpam... yes
checking for openpam_ttyconv in -lpam... no
checking for misc_conv in -lpam_misc... yes
checking for security/openpam.h... no
checking for security/pam_misc.h... yes
checking whether PAM_ESTABLISH_CRED is declared... yes
checking whether PAM_DELETE_CRED is declared... yes
checking whether PAM_NEW_AUTHTOK_REQD is declared... yes
checking whether PAM_DATA_SILENT is declared... yes
checking for pam_fail_delay... yes
checking use login and su access checking if PAM not used... no
checking for MD5Init in -lmd... yes
checking for skeychallenge in -lskey... no
configure: error: liskey missing. You can download S/Key source code 
from http://rsync1.it.gentoo.org/gentoo/distfiles/skey-1.1.5.tar.bz2


But I have skey 1.1.5 installed.