The following elements are required to compile ClamAV:
- zlib and zlib-devel packages
- gcc compiler suite (both 2.9x and 3.x are supported)
The following packages are optional but highly recommended:
- bzip2 and bzip2-devel library
- GNU MP 3
It's very important to install the GMP package because it allows
freshclam to verify the digital signatures of the virus
databases. If freshclam was compiled without GMP support it will
display "SECURITY WARNING: NO SUPPORT FOR DIGITAL SIGNATURES" on every
update. You can download GNU MP at http://www.swox.com/gmp/
A note for Solaris/SPARC users: you must set the ABI system
variable to 32 (e.g. setenv ABI 32) before running the
configuration script of GMP.