[CentOS] lockfile

Hello,

i need for an old bios-update the programm "lockfile". The update-bin 
make a check via "which lockfile". I have installed 
"lockfile-progs.x86_64" on a CentOS 5.8 and i have the programm 
"lockfile" and "lockfile-check, lockfile-create, lockfile-remove, 
lockfile-touch" in /usr/bin/.
On my CentOS 6.2 i have install the pakage "liblockfile.x86_64", too. I 
have the "lockfile-check, lockfile-create, lockfile-remove, 
lockfile-touch" in /usr/bin/
But i missing the "lockfile".

Thanks Sebastian