Installation of the GEMINI external package V1.3
	--------------------------------------------------

[0] The package requires IRAF version 2.11.3 with the patches patch3a
    and patch3b installed. The package will run on systems without
    patch3b installed, but the bugs fixed in that release will still
    be present.

[1] The package is distributed via the Gemini web pages, see
    http://www.gemini.edu/sciops/data/dataSoftware.html

    The package will also be available from the NOAO/IRAF ftp site:
    ftp://iraf.noao.edu

    You need the two files  gemini.tar.gz  and  gemini.readme which
    are both linked from the Gemini web pages.
    
    The gemini.readme file contains these instructions.

[2] gunzip the file gemini.tar.gz

        % gunzip gemini.tar.gz

[3] Create a directory to contain the GEMINI external package files.  This
    directory should be outside the IRAF directory tree and must be owned
    by the IRAF account. In the following example, this root directory
    is named /iraf/extern/gemini/ (UNIX and Linux). Make the appropriate
    file name substitutions for your site.

[4] Log in as IRAF and edit the extern.pkg file in the hlib directory to
    define the package to the CL. From the IRAF account, outside the CL,
    you can move to this directory with the commands:

	% cd $hlib

    Define the environment variable gemini to be the pathname to the gemini
    root directory. UNIX pathnames must be terminated with a '/'.  
    Edit extern.pkg to include:

	reset gemini      = /iraf/extern/gemini/
	task  gemini.pkg = gemini$gemini.cl

    Near the end of the hlib$extern.pkg file, update the definition of helpdb
    so it includes the gemini help database, copying the syntax already used
    in the string. Add this line before the line containing a closing quote:
        
                ,gemini$lib/helpdb.mip\

[5] Log into the CL from the IRAF account and unpack the archive file.  Change
    directories to the GEMINI root directory created above and use 'rtar':

	cl> cd gemini
	cl> softools
	cl> rtar -xrf <path>/gemini.tar
    
    where <path> is the relative path from /iraf/extern/gemini to the 
    downloaded file.

    You can also unpack the file gemini.tar from UNIX

        % cd /iraf/extern/gemini/
        % tar xvf <path>/gemini.tar 

[6] If patch3b is not available for your architecture, you need to
    include the entries for Gemini North and Gemini South in the 
    observatories database file. 

        cl> edit noao$lib/obsdb.dat

    Add the two entries found in the file gemini$lib/obsdb.dat

[7] There are no compiled elements in the GEMINI package and therefore
    no need to compile and link the package.

[8] In order to support display of GMOS images the site graphcap file
    and the site imtoolrc file need to be modified. The graphcap entries
    found in gemini$lib/graphcap should be added to the site graphcap
    file, usually dev$graphcap. 
    The imtoolrc entries found in gemini$lib/imtoolrc should be added to 
    the site ximtoolrc file, usually dev$imtoolrc. This file is either 
    linked or copied to a directory line /usr/local/lib in the process
    of installing IRAF. If it is copied, then the entries from 
    gemini$lib/imtoolrc need to be added to the imtoolrc in /usr/local/lib

[9] Please use the Gemini help desk for submission questions
    http://www.gemini.edu/sciops/helpdesk/helpdeskIndex.html
    Refer to http://www.gemini.edu/sciops/data/dataSoftware.html
    for requirements on your IRAF installation including other required
    external packages.