From: Hidetoshi NAGAI <nagai@...>
Date: 2009-02-09T15:39:39+09:00
Subject: Re: A Tk window

From: Joel VanderWerf <vjoel@path.berkeley.edu>
Subject: Re: A Tk window
Date: Mon, 9 Feb 2009 05:43:28 +0900
Message-ID: <498F4419.5080507@path.berkeley.edu>
> I haven't gotten ruby/tk to work with 8.5. It's been ok with 8.4 but 
> segfaults with 8.5.
> 
> This is on ubuntu. I build tcl8.5.6 and tk8.5.6 with
> 
> ./configure --disable-threads --prefix=/usr/local
> make && make install
> 
> The tk demos run correctly.
> 
> Then I build ruby (1.8.6-p287) with:
> 
> ./configure --disable-pthread --with-tcl-dir=/usr/local 
> --with-tk-dir=/usr/local --disable-tcl-thread
> make && make install
> 
> (I tried just rebuilding ext/tk as described in README.tcltklib, but the 
> effect was the same.)
> 
> Then *some* of the ruby/tk demos run but some segfault. For example:

Probably, your Tcl/Tk libraries are compiled with threads support option. 
The following table is the relation of thread support between 
Ruby and Tcl/Tk. 

                   |  Tcl/Tk with threads  |   without threads 
-------------------+-----------------------+------------------------
 Ruby with pthread |         work          |    possibly work
-------------------+-----------------------+------------------------
  without pthread  | NOT work (freq. SEGV) |         work
-------------------+-----------------------+------------------------

"--disable-tcl-thread" option doesn't change thread support status of 
Tcl/Tk libraries.
-- 
Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)