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Date:Mon Jan 23 12:00:07 2001 
Subject:How to fix libtermcap requirement?? (was Re: linux-installation) 
From:Aaron Sloman See text for reply address 
Volume-ID:1010123.03 

[To reply replace "Aaron.Sloman.XX" with "A.Sloman"]

Peter Buchlovsky <ug64pxb@cs.bham.ac.uk> writes:

> Date: 23 Jan 2001 00:09:39 +0000
>
> "Monika Sester" <monika.sester@ifk.uni-hannover.de> writes:
>
> > however, the system is missing a library.
> >     libtermcap.so.2
> >
> > any hint where to find it ?
>
> I had the same problem on my debian system. It appears poplog was
> linked against "libtermcap.so.2" instead of "libtermcap.so". The quick
> fix that I applied was to symlink /usr/lib/libtermcap.so.2 to
> /usr/lib/libtermcap.so

Peter thanks for responding to Monika.

I have copied this correspondence to the BUGREPORTS file in

    http://www.cs.bham.ac.uk/research/poplog/bugfixes/

I think several people have had this problem and had to fix it the same
way.

Does anyone know whereabouts in the system the reference to
libtermcap occurs? If I can find it I can fix it and relink,
presumably, so that others do not have the problem in future.

I've used "grep libtermcap *" in all the directories I can think
of without success.

However, in $popsrc/termcap.p I found this:

    exload termcap
    #_IF DEF OSF1 or DEFV IRIX >= 6.0 or DEF AIX
	    ['-lcurses']
    #_ELSEIF DEFV IRIX >= 5.0
	    ;;; names in the curses library clash with names defined in the
	    ;;; graphics library libgl; since we don't use those names, linking
	    ;;; statically will pull in just the names we want and minimise the
	    ;;; problem
	    ['-B static -lcurses -B dynamic']
    #_ELSE
	    ['-ltermcap']
    #_ENDIF
	    lconstant exload_dummy;		;;; anything will do
    endexload;

There is no mention of Linux in REF external, which explains how
exload works.

This section of REF external may give someone more familiar with
unix/linux "ld" a clue:

| ...  Unix Systems with Dynamic Linking
| --------------------------------------
| This currently includes  OSF1, AIX,  HP-UX (post version  8.0) and  Unix
| systems based on System V Release  4 (SVR4), including Sun Solaris  2.X,
| Silicon Graphics IRIX 5.X and ICL's implementation of SVR4.
|
| On these systems, exload uses the system call interface to the operating
| system dynamic linker to  attach a shared object  to the Poplog  process
| and make  the functions  and data  defined in  the shared  object/shared
| library available to Poplog. The input file list determines which shared
| objects will be  opened and  where they  are to  be found.  The list  is
| processed by Poplog and may contain a subset of the options supported by
| ld: namely, shared object  files, library specifications (-l  arguments)
| and additional library search paths (-L arguments). A word argument (not
| beginning with "-") is taken to be a shared object file name without  an
| extension, and either of the  standard extensions '.so' (SVR4, OSF1  and
| AIX) or  '.sl' (HP-UX)  is added  to it.  String arguments  may  specify
| library  files  as  appropriate;   both  the  Poplog  external   library
| '$popexternlib/libpop.olb'. and the  C default library  '-lc' are  added
| automatically to the end of the list.

Suggestions welcome

Aaron
====
Aaron Sloman, ( http://www.cs.bham.ac.uk/~axs/ )
School of Computer Science, The University of Birmingham, B15 2TT, UK
EMAIL A.Sloman AT cs.bham.ac.uk   (ReadATas@please !)
PAPERS: http://www.cs.bham.ac.uk/research/cogaff/
FREE TOOLS: http://www.cs.bham.ac.uk/research/poplog/freepoplog.html