system-local terminfo does not search /usr/share/terminfo as README says

[Henrik Holst]

    $ lsb_release -rd

    Description: Ubuntu 16.04.2 LTS
    Release: 16.04

The file /etc/terminfo/README says

    This directory is for system-local terminfo descriptions. By default,
    ncurses will search ${HOME}/.terminfo first, then /etc/terminfo (this
    directory), then /lib/terminfo, and last not least /usr/share/terminfo.

but it seems that /usr/share/terminfo is not used or does not work as expected?

Repro:

1) Install `stterm`

2) Start `stterm`

3) Type `clear`

Result:

    terminals database is inaccessible

Expected result:

Screen is cleared

Workaround:

Symlink the terminfo database to a user-local ~/.terminfo

    mkdir -p ~/.terminfo/s && ln -sf /usr/share/terminfo/s/stterm* ~/.terminfo/s

[Thomas Dickey (dickey-his)]

Works for me:

$ infocmp stterm|head -5
# Reconstructed via infocmp from file: /usr/share/terminfo/s/stterm
stterm| Suckless Tools simple terminal,
        am, bce, hs, mir, msgr, ul, xenl,
        colors#8, cols#80, it#8, lines#24, ncv#3, pairs#64,
        acsc=``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,

$ infocmp -D
/etc/terminfo
/lib/terminfo
/usr/share/terminfo

$ toe -as
--> /etc/terminfo
----> /lib/terminfo
------> /usr/share/terminfo
...
----*-: stterm Suckless Tools simple terminal
----*-: stterm-256color Suckless Tools simple terminal with 256 colors
----*-: stterm-meta Suckless Tools simple terminal with meta key
----*-: stterm-meta-256color Suckless Tools simple terminal with meta key

Since /usr/share/terminfo is the compiled-in system default, it's hard to break that...