[Rock-dev] [Rock-users] Unable to start component by ruby

[Sylvain Joyeux]

Could we move this to an issue on github ? Would be nicer ...


On Tue, Jul 1, 2014 at 10:31 AM, Matthias Goldhoorn <
matthias.goldhoorn at dfki.de> wrote:

>  On 01.07.2014 09:58, Alexander Duda wrote:
>
>
>  Am 01.07.2014 um 09:32 schrieb Matthias Goldhoorn <
> matthias.goldhoorn at dfki.de>:
>
>  @Ruby binding guy's:
> I think the problem with orocos.rb is related to some linking problems of
> the orocos extenstion.
> I attached the ldd output and the CMakeCache from my installation. So Far
> i see it should work.
> I compared the CMakeCache with my local one and can't find the fault here.
>
> Has someone i idea what's going on here?
>
>
>  The ruby extension is not linked against ruby. In general it is not nice
> but should not be a problem because the symbols are already known if the
> extension is loaded by ruby.
>
>  You can try the following and post the output for all steps:
>
>  orocos.rb: rake
> ruby —version
> which ruby
> which irb
> irb -r 'orocos/rorocos'
>
>  Alex
>
>
> rake: <done>
> goldhoorn at goldhoorn-VirtualBox:~/dev-xenomai/tools/orocos.rb$ ruby
> --version
> ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-linux]
> goldhoorn at goldhoorn-VirtualBox:~/dev-xenomai/tools/orocos.rb$ which ruby
> /home/goldhoorn/dev-xenomai/install/bin/ruby
> goldhoorn at goldhoorn-VirtualBox:~/dev-xenomai/tools/orocos.rb$ which irb
> /home/goldhoorn/dev-xenomai/install/bin/irb
> goldhoorn at goldhoorn-VirtualBox:~/dev-xenomai/tools/orocos.rb$ irb
> --version
> irb 0.9.6(09/06/30)
> goldhoorn at goldhoorn-VirtualBox:~/dev-xenomai/tools/orocos.rb$ irb -r
> 'orocos/rorocos'
> /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require':LoadError:
> cannot load such file -- orocos/rorocos
> goldhoorn at goldhoorn-VirtualBox:~/dev-xenomai/tools/orocos.rb$ irb
> irb(main):001:0> require "orocos"
>
> Cannot require orocos.rb's Ruby/C extension
> If you are using Rock, this should have been done automatically.
> Run
>   amake orocos.rb
> and try again
> NotImplementedError: method `backtrace' called on unexpected T_NODE object
> (0x00000002484ea8 flags=0x381c klass=0x0)
>
>     from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
>     from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
>     from (irb):1
>     from /usr/bin/irb1.9.1:12:in `<main>'
>
>
> Nice try but it is not such simple ;)
>
> Best,
> Matthias
>
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