This file contains instructions specivic to OpenNX only. Generic
installation instructions are described in INSTALL.generic.

1. Supported target systems:

This package has been tested on Linux, OpenBSD, Mac OSX and
Windows (with MinGW)

1. Prerequisites:
   
    OpenNX uses wxWidgets, libsmbclient and libcups so you will need the
    corresponding development packages on your system.

    For building on Windows, you need the latest MinGW/MSYS development
    system (See http://www.mingw.org). Since currently (Sep. 2008) only old
    installers are officially available at SourceForge, you probably are
    better suited when using my custom installer. Fetch it from
    http://www.fritz-elfert.de/downloads/mingw+msys-092008-setup.exe
    It contains a complete MinGW/MSYS environment plus a pre-built
    wxWidgets-2.8.8 framework, containing the patches mentioned below.

    On all other systems, you will just need wxWidgets of
    version 2.8.9 or later.

    When using an SVN-checkout, in addition, you need GNU autotools,
    GNU gettext and GNU libtool, svn2cl (and their dependencies, of course)
    in order to generate the necessary support files.

    You also can cross-build for windows on Fedora F11, using the latest
    mingw32 cross environment.

2. Configuring the package:

    When using an SVN-checkout, the missing support files can be generated
    by invoking

        make -f Makefile.am

    This step needs svn access (because it generates the ChangeLog and
    derives the Build-# from the SVN revision) an is *NOT* necessary when
    building from a source tarball.

    Normally, you simply will run the command sequence:

        ./configure
        make
        make install

    Options to ./configure, specific to OpenNX are:

        Application features:
        --enable-unicode
            Enables a unicode build [Default: YES]
        --enable-staticwx
            Link against a static wxWidgets lib [Default: NO]
        --enable-debug
            Link against a debug wxWidgets lib [Default: NO]
        --enable-warn
            Enables some additional compiler warnings [Default: NO]
        --with-nxproto=x.x.x
            Can be used to tweak the NX protocol version [Default: 2.1.0]

        Build environment tweaks:
        --with-samba=DIR
            Can be used to specify the samba source for finding smbclient.h
        --with-wxdir=PATH
            Can be used to specify an uninstalled version of wxWidgets
        --with-wx-config=CONFIG
            Can be used to specify a custom wx-config script to use
    
    All other (generic) options are documented in the file INSTALL.generic

3. Running OpenNX:

    OpenNX is a drop-in replacement for nxclient. Therefore, in order to be
    of any practical use, you need the usual NX client environment for your
    platform. Furthermore, the application binary MUST be named nxclient
    (because that name is hardcoded in Nomachine's nxssh)! In order to use
    the SmartCard feature, you also need to rebuild nxssh from source,
    enabling it's already existing SmartCard feature(s) during
    nxssh's ./configure. Enabling this feature adds a dependency on
    openct/opensc (See http://www.opensc-project.org). The SmartCard
    is currently used for storing the client's SSH key and NOT forwarded
    thru the NX session.

4. USB forwarding:
  For those who are curious: There is a configure option named
  --enable-usbip (Default: NO) which is intended to activate support
  for USB forwarding. Enabling this will *NOT* work, because it depends on
  additional software which is *currently* closed source. The additional
  software will be released to OpenSource in approx. 1 year.

Have fun
 -Fritz