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Installation Notes for Regina
-----------------------------
Please read ALL of these notes before building Regina! If you are
building Regina under AIX 3.x or AIX 4.1.x, ensure you read the
section at the end, titled "Building Regina under AIX"
To install Regina, you first need to configure it. This is done by
executing the configure script provided in this archive.
Generally all you need to run is "configure", but there are some
options that can be passed to the configure script; use
"configure --help" to view them.
Once the configure script has been run, you can then type "make".
This will create the following objects:
rexx statically linked Regina Rexx interpreter
regina dynamically linked Regina Rexx interpreter
(this is the executable to use if you intend using rxfuncadd() )
libregina.a static Regina library (also dynamic library under AIX)
libregina.sl dynamic Regina library (for HPUX only)
libregina.so dynamic Regina library (for all other OS's)
execiser program to exercise Regina internals
test1.so|.sl|.a
test2.so|.sl|.a external function packages provided as examples on how
to write external function packages and used by the
dynfunc.rexx demo program.
Once you have Regina compiled, it can then be installed. By default, the
Regina executables will be installed into /usr/local/bin and the libraries
and external function packages (*.so|.sl|.a) will be installed into
/usr/local/lib. The base path "/usr/local" can be changed by adding the
--prefix=path (where path is the base path) to the configure command.
eg. to install Regina into /opt/bin and /opt/lib, configure --prefix=/opt ...
On most platforms, it is necessary to include the directory where shared
libraries (including *.so|.sl|.a) reside, to the LD_LIBRARY_PATH
environment variable. Under AIX this environment variable is LIBPATH.
Under HP-UX this environment variable is SHLIB_PATH.
Under SGI seems to be LD_LIBRARYN32_PATH.
Building Regina under AIX
-------------------------
This section is only applicable to people building Regina under AIX
3.x and AIX 4.1.x.
To build a version of the Regina library that allows for the dynamic
loading of external function packages, you will need a software package
that emulates the common dlopen() suite of C functions.
This package is dlfcn.tar.gz and should be available from the same place
where you obtained Regina.
dlfcn.tar.gz is written by Helios Software in Germany, and is freely
available. Please check the documentation that comes with dlfcn.tar.gz
for details on how to build libdl.a and on any restrictions on the use
of dlfcn.tar.gz.
You will first need to build the library, libdl.a using the source code
from dlfcn.tar.gz.
When configuring Regina, there are two extra switches you will require:
--with-dlfcnincdir="directory containing dlfcn.h"
--with-dlfcnlibdir="directory containing libdl.a"
Assuming you downloaded dlfcn.tar.gz and built it in /home/mark/dlfcn, then
the "configure" command for Regina would be:
configure --with-dlfcnincdir=/home/mark/dlfcn --with-dlfcnlibdir=/home/mark/dlfcn
No checking is done by the configure script to ensure that the header file
and library actually exist in this directory. The first you will know
about it if you specifies the paths incorrectly is a compilation or
linking error.
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