Help with Ruby/TK install on Mandriva2006


#1

My Ruby install on Mandriva2006 (from, iirc, the Mandriva package(s))
appears
to be borked. One symptom: require ‘tk’ in irb returns “LoadError: No
such
file to load – tk …”

Is anybody here using Ruby and TK successfully on Mandriva2006? If so,
how
did you install it (RPMdrake?) and which packages did you have to
install.

IIRC, I simply (during the Mandriva2006 install (not an update)) made
sure
that Ruby was selected–I don’t remember if there was one or more
packages
related to Ruby.

I’m pretty sure I have TK installed (or at least TCL) because running
either
tclsh or wish gives me a prompt (wish on a popup). However, looking
in /usr/lib/ruby/1.8/ I don’t see a tk.rb package (I do see multi-tk.rb
and
remote-tk.rb).

My goal is to use TkHTML in some Ruby programs, so after I get TK
working I’ll
want to download and get TkHTML working.

I’m wondering what my best way forward is, I can see a few options:

  • uninstall Ruby (and related packages) and try reinstalling it (from
    Mandriva2006 rpms) --I have a vague recollection that, during the
    Mandriva2006 install, it couldn’t find some packages or files–maybe
    some of
    those were related to Ruby or TK, and maybe I need to download new
    copies of
    the Ruby related files before trying to install.

  • This machine used to run Mandrake 10 (or 10.1, I forget atm).
    Anyway, I
    did install Ruby successfully, iirc, perhaps from source at that time,
    so, in
    other places on my disk, I have some of the files I might need to make
    Ruby /
    TK work. (For example, I have tk.rb in directory:

/rhk/work/ruby/ruby-1.8.2/ext/tk/lib/

I could try simply copying it (and maybe all files in that directory)
to /usr/lib/ruby/1.8/. (I might do that soon, just to see what happens,
but
I thought I’d try asking for advice first–I don’t want to make things
worse,
but, on the other hand, if I decide to do a complete uninstall and
reinstall,
this shouldn’t hurt anything.

  • the version of Ruby that comes with Mandrake2006 is 1.8.2–maybe
    I’d do
    better to update to 1.8.4 by installing from source? (As mentioned
    above, I
    managed that once, but I always regard a source installation as a hit or
    miss
    proposition–I’m never confident that it will work, and if it doesn’t,
    I’m
    also left with no clue about how to proceed (sometimes I can tell that
    I’m
    missing a “dependancy” and can identify what I need, sometimes I can’t.

If it happens that I need Ruby 1.8.4 (or .3) to work with TkHTML, then I
definitely want to go that route (or find a binary RPM (for Ruby 1.8.4)
for
Mandriva2006–I googled a few weeks ago and didn’t find one).

  • Maybe I have some of the Ruby paths set wrong (well, I didn’t
    change
    them–but maybe I could to pick up the tk.rb file in its current
    directory).

Any help appreciated!
Randy K.


#2

From: Randy K. removed_email_address@domain.invalid
Subject: Help with Ruby/TK install on Mandriva2006
Date: Wed, 22 Mar 2006 00:09:14 +0900
Message-ID: removed_email_address@domain.invalid

My Ruby install on Mandriva2006 (from, iirc, the Mandriva package(s)) appears
to be borked. One symptom: require ‘tk’ in irb returns “LoadError: No such
file to load – tk …”

Although I don’t know Mandriva2006, there may be another rpm package
about Ruby/Tk (e.g. ruby-tcltk-*.rpm).


#3

Hidetoshi NAGAI wrote:

From: Randy K. removed_email_address@domain.invalid
Subject: Help with Ruby/TK install on Mandriva2006
Date: Wed, 22 Mar 2006 00:09:14 +0900
Message-ID: removed_email_address@domain.invalid

My Ruby install on Mandriva2006 (from, iirc, the Mandriva package(s)) appears
to be borked. One symptom: require ‘tk’ in irb returns “LoadError: No such
file to load – tk …”

Although I don’t know Mandriva2006, there may be another rpm package
about Ruby/Tk (e.g. ruby-tcltk-*.rpm).

I believe it is called ruby-tk. Try searching for it in mcc or rpmdrake
or using urpmi.
Also, I’ve never had any problems compiling Ruby on Mandriva, so you
might give that a shot if you want the newer version of Ruby.

-Justin


#4

On Tuesday 21 March 2006 12:17 pm, Justin C. wrote:

Hidetoshi NAGAI wrote:

Although I don’t know Mandriva2006, there may be another rpm package
about Ruby/Tk (e.g. ruby-tcltk-*.rpm).
I believe it is called ruby-tk. Try searching for it in mcc or rpmdrake
or using urpmi.
Also, I’ve never had any problems compiling Ruby on Mandriva, so you
might give that a shot if you want the newer version of Ruby.

Thanks, Justin and Hidetoshi!

I compiled the 1.8.4 source and it seemed to work well. Now require
‘tk’
works!

I do have two followup questions:

  1. There were a lot of warnings during the install step, like:

zlib.c: In function ‘gzfile_calc_crc’:
zlib.c:2120: warning: pointer targets in passing argument 2 of ‘crc32’
differ
in signedness

Are these significant?

  1. The irb command line works differently now than when Ruby 1.8.2
    (the
    Mandriva package) was installed. Some examples: up and down arrows
    don’t
    call up previous commands (i.e., command history), the left and right
    arrows
    don’t move the cursor. IIRC, this is back to the way irb behaved when I
    installed Ruby 1.8.2 from source on Mandrake 10.1. Anybody know why the
    difference, and how to get the other behavior back?

Aside: Perhaps the nicest behavior of all was that I could past multiple
lines
of Ruby code at the irb prompt, and somehow, magically, each line was
shown
with an irb prompt in front of it (very neat looking). That doesn’t
work
anymore, and it seems I must now paste in each line separately.

Randy K.