Arti S. wrote in post #1017945:
I got the error below despite when installing rdiscount having devkit
inatalled and the
config.yamil pointing to the root of the ruby directory. I tried
installing it in jruby as well as ruby
Does anyone know any work arounds that i can try?
I’m guessing you found my JRuby + C extensions post at
http://jonforums.github.com/ruby/2010/11/30/devkit-jruby-c-extensions.html
and tried the quick smoke test with rdiscount.
More importantly, do you really need to use rdiscount with JRuby for
your markdown support? If not, check out whether pure Ruby gems like
maruku | RubyGems.org | your community gem host or kramdown | RubyGems.org | your community gem host
work for you.
Bottom line: save yourself time and move on to more interesting things
by using a pure Ruby gem like…
C:>jruby -rubygems -e “require ‘kramdown’;puts
Kramdown::Document.new(‘Hello JRuby’).to_html”
Hello JRuby
Still here? Beasties lie below with the result that JRuby + rdiscount no
longer works for me.
Still here?!??
It’s difficult for people to tell what the problem is because you didn’t
provide enough information. In the future, please provide details such
as the Windows OS version (eg - Win7, 32bit or 64bit, etc), the output
from running jgem env, your DevKit config.yml file, etc.
That said, I suspect you’ve run into a few problems:
C:/selenium/jruby-1.6.3/bin/jruby.exe extconf.rb
WARNING: JRuby does not support native extensions or the `mkmf’ library
very well.
Check http://kenai.com/projects/jruby/pages/Home for alternatives.
It appears you didn’t install the DevKit (a 32bit toolchain) artifacts
into your JRuby. After editing your config.yml file, you need to run
ruby dk.rb install (you may need to run `jruby dk.rb install). For
reference my config.yml contains this at the bottom; it’s important to
use forward-slashes.
Example:
—
- C:/ruby19trunk
- C:/ruby192dev
- C:/ruby19trunk
- C:/ruby193
- C:/ruby192
- C:/ruby187
- C:/jruby
- C:/Users/Jon/Documents/JavaDev/jruby-git
checking for random()… no
checking for srandom()… no
checking for rand()…
make
gcc -I. -I. -IC:/selenium/jruby-1.6.3/lib/native/include/ruby -I.
-DHAVE_RAND -D
HAVE_SRAND -fno-omit-frame-pointer -fno-strict-aliasing
-fexceptions
-m64 -march=native -mtune=native -c basename.c
basename.c:1:0: sorry, unimplemented: 64-bit mode not compiled in
make: *** [basename.o] Error 1
You’re running Windows 64bit? What version?
In my JRuby 1.6.3 download (jruby-bin-1.6.3.tar.gz) I only see the 32bit
version of the DLL (lib/native/i386-Windows/jruby-cext.dll) required for
interfacing with native C extensions, but no 64bit version in
lib/native/x86_64-Windows. Even if there was a 64bit jruby-cext.dll
version, I think you’ll run into problems as the only DevKit we
currently make available is a 32bit version.
But if you’re running a 32bit Windows, here’s what I did to install
rdisount on my Win7 Ultimate 32bit after installing the DevKit artifacts
into my JRuby:
C:\DevKit>jruby --version
jruby 1.6.3 (ruby-1.8.7-p330) (2011-07-07 965162f) (Java HotSpot™
Client VM 1.7.0) [Windows 7-x86-java]
C:\DevKit>gem --version
1.8.8
C:\DevKit>gem list rdiscount
*** LOCAL GEMS ***
C:\DevKit>gem install rdiscount
Fetching: rdiscount-1.6.8.gem (100%)
Temporarily enhancing PATH to include DevKit…
Building native extensions. This could take a while…
Successfully installed rdiscount-1.6.8
1 gem installed
But something’s changed and it doesn’t seem to work anymore 
C:>jruby -rubygems -e “require ‘rdiscount’; puts RDiscount.new(‘Hello
JRuby’).to_html”
LoadError: load error: rdiscount – java.lang.UnsatisfiedLinkError:
failed to load shim library, error: The operation completed
successfully.
require at org/jruby/RubyKernel.java:1038
require at
C:/jruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36
(root) at
C:/jruby/lib/ruby/gems/1.8/gems/rdiscount-1.6.8/lib/rdiscount.rb:96
require at org/jruby/RubyKernel.java:1038
require at
C:/jruby/lib/ruby/gems/1.8/gems/rdiscount-1.6.8/lib/rdiscount.rb:59
(root) at -e:1
If you’ve reached this point and are still interested, I suggest you
take this issue over to the JRuby list at
Good luck!
Jon
blog: http://jonforums.github.com/
twitter: @jonforums
“Anyone who can only think of one way to spell a word obviously lacks
imagination.” - Mark Twain