The gl_event_handler() function had the endif of a
conditional compilation clause in the wrong place. This
only upset the compiler on unusual systems that don't
have select(). The problem was seen under Mac OS X, due
to the configuration problem in 1.6.0 that caused the
configure script to mistakenly report that select wasn't
available.
The tecla library provides UNIX and LINUX programs with interactive
command line editing facilities, similar to those of the UNIX tcsh
shell. In addition to simple command-line editing, it supports recall
of previously entered command lines, TAB completion of file names or
other tokens, and in-line wild-card expansion of filenames. The
internal functions which perform file-name completion and wild-card
expansion are also available externally for optional use by programs.