This document describes how to port CDEV to a different UNIX platform.
Currently, CDEV with channel access service has been tested on HP-UX 9.x,
HP-UX 10.1(2), Solaris 2.5(6), and Linux 2.0.x, and CDEV without channel 
access service has been ported to SunOs (gcc-2.7), Ultrix (gcc-2.6), Irix,
VMS (DEC C++) and AIX. The following are brief description of what one may 
have to do to port CDEV.
1) Makefile and Makefile.common have to be changed a little (Check README).
We are in the process to find a way to configure makefiles for different
platform.

2)in src/cdevIO, xdrClass.h may need to add some header file for rpc related
stuff.

3)in src/cdevIO. cdevData.i contains inlined functions for cdevData. If one
has trouble to build library using inline function, add _CDEV_NO_INLINE
to one's C++ flag.

4)one can build CDEV in a share library form and dynammically load services
if the operating system permits. Currently one can have CDEV shared library
on HP-UX, SunOs, Solaris, Linux, Irix. If shared libray of CDEV is desired 
form on a different platform, src/common/shObjLoader, that loads services 
into applications dynamically, has to be modified. 

Eventually, all system dependent stuff will be in one file somewhere. But
for now we don't have time to do that.