/usr/bin/camlp4boot
/usr/bin/camlp4
/usr/bin/camlp4o
/usr/bin/camlp4of
/usr/bin/camlp4of.opt
/usr/bin/camlp4oof
/usr/bin/camlp4oof.opt
/usr/bin/camlp4o.opt
/usr/bin/camlp4orf
/usr/bin/camlp4orf.opt
/usr/bin/camlp4prof
/usr/bin/camlp4r
/usr/bin/camlp4rf
/usr/bin/camlp4rf.opt
/usr/bin/camlp4r.opt
/usr/bin/mkcamlp4
You may install this package on CentOS with
yum
install ocaml-camlp4-devel