. To compile Nessus under HP/UX (tested with HP/UX 10.20), you need to install
GCC, and GAS (GNU AS).

GCC can be found in
		ftp://ftp.gnu.org/pub/gnu/gcc/

GAS can be found at 
		ftp://ftp.gnu.org/pub/gnu/binutils/


. You will also need to install bison and flex :

Bison can be found at 

		ftp://ftp.gnu.org/pub/gnu/bison

Flex can be found at 
		ftp://ftp.gnu.org/pub/gnu/non-gnu/flex/