From CCP4 wiki
→Installation from a distributed binary tarball package
This is the recommended way for those who do not want to delve into the mysteries of compiling and linking a great but complex piece of software. Read the (somewhat outdated, it seems) [http://www.ysbl.york.ac.uk/%7Eemsley/coot/coot-faq.html Coot FAQ] to find "Additional Notes" for your operating system.
In short, just go to http://www.ysbl.york.ac.uk/~emsley/software/binaries/nightlies/pre-release/
(a mirror is at ftp://turn5.biologie.uni-konstanz.de/coot/software/binaries/nightlies/pre-release/ ) and pick a suitable binary, e.g.
coot-0.5-pre-1-revision-1003-binary-Linux-i386-fedora-5.tar.gz for a Red Hat Enterprise Linux 5 or CentOS-5 system (Fedora 6 corresponds to RHEL5, thus Fedora 5 binaries are OK). If you prefer a "stable" binary, these are at http://www.ysbl.york.ac.uk/~emsley/software/binaries/stable/.