Building Octave-2.1.35 using Cygwin-1.3.3-2

John W. Eaton
Tue Dec 4 13:57:00 GMT 2001

On  4-Dec-2001, Billinghurst, David (CRTS) <> wrote:

| You wrote that you had problems compiling octave-2.1.35 on cygwin, due to a
| missing definition of _rl_clear_screen.
| The problem is that _rl_clear_screen is "private" and is not exported in
| cygreadline.dll.  As you and I both found out, simply removing the leading
| underscore is the "Wrong Thing".
| There are a number of solutions to this problem, including:
| a) building octave without readline support,
| b) building your own dll with this symbol exported
| c) using the static libreadline.a
| d) finding a way to use rl_clear_screen
| e) getting someone else to do (b) for you
| Option (a) is easy as there is a configure option for this.
| Option (c) is pretty easy.  
|  Configure octave with "CFLAGS='-DREADLINE_STATIC -O'
|  Change -lreadline to /usr/lib/libreadline.a in Makeconf
|  make 
| The rest are left as an exercise.

It's not quite as easy as that now, since the readline sources are no
longer distributed with Octave.

In any case, this problem is fixed in the current Octave sources (in
CVS) and should not appear in the next snapshot.


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