Compiling EPICS and Building IOC Applications on HPUX 11 (hpux-parisc)
======================================================================

Please mail questions, comments, corrections, additional examples, etc.
to Ralph.Lange@mail.bessy.de

NOTE: 3.14 will ONLY compile on HPUX 11 systems. HPUX 10 does not have
      the necessary thread support and will never ever be supported for
      EPICS base versions >= 3.14.


Tools needed
------------

 o HP's ANSI C compiler (cc)

For compiling with the HP C++ compiler (hpux-parisc)
 o Recent version of HP's aCC C++ compiler aCC (we use A.03.39)

For compiling with GNU g++
 o GNU g++ >= 2.95 (we use 3.2)


Environment
-----------

Default is compiling with the generic HP aCC compiler. To use the GNU compiler,
set the environment variable EPICS_HOST_ARCH to hpux-parisc-gnu before starting
to compile base.


Shared Libraries
----------------

Generating shared libraries is supported, suggested and the default.
You have to set the appropriate search path variable in
../configure/os/CONFIG_SITE.hpux-parisc.hpux-parisc to make shared
libraries work properly. (You can always override with setting the
SHLIB_PATH environment variable when executiong the binaries.)


Known Problems
--------------

 o There is a problem with a CA client not detecting a network
   connection going down. This only happens with some clients, though.

 o Statically built binaries don't work properly (yet).

 o GNU built binaries don't work properly (yet).

 o The 3.13 compatibility mode isn't thoroughly tested yet.


Please feel free to contact me if you encounter serious problems.

Enjoy!
Ralph