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NetBeans IDE Dev (Build 200704021800) 1.6.0_01; Java HotSpot(TM) Client VM 1.6.0_01-b04 Linux version 2.6.17-10-generic running on i386 cs_CZ (nb); UTF-8 + ruby 0.51 ---------------------------------------------------------------- no special settings, just downloaded from UC ruby, did not change interpreter, just out of the box experience. Probably you have more insight what is wrong? Gem itself or gem installation?! On windows was gem installed successfully (using of course mswin32) This is output from gem manager: Select which gem to install for your platform (java) 1. ruby-debug-base 0.9.1 (mswin32) 2. ruby-debug-base 0.9.1 (ruby) 3. Skip this gem 4. Cancel installation 2 > Building native extensions. This could take a while... Error opening script file: extconf.rb (No such file or directory) ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError) ERROR: Failed to build gem native extension. ruby extconf.rb install ruby-debug-base --no-rdoc --no-ri --include-dependencies --version 0.9.1 Gem files will remain installed in /tmp/ud/jruby-0.9.8/lib/ruby/gems/1.8/gems/ruby-debug-base-0.9.1 for inspection. Results logged to /tmp/ud/jruby-0.9.8/lib/ruby/gems/1.8/gems/ruby-debug-base-0.9.1/ext/gem_make.out
I can confirm this behaviour. However, the issue not only affects ruby-debug-base gem, but any gem that must build native extensions and thus call extconf.rb. For example, mongrel, sqlite3-ruby, mysql, etc. They all generate the same error (for me) as described below. Using NetBeans M8 with ruby-hudson-689, on Linux (Ubuntu Edgy). This is a show-stopper, at least on my machine, since NetBeans doesn't seem to have a way to use gems already installed on the system, but must install its own via the Ruby Gem Manager.
I suppose more people will try to get debugger working this way as Tomas did. So it is also semi-stopper for the debugger in some cases.
Since users can't install many required gems it seems as stopper. Why ruby interpreter is executed? Maybe, we should use embedded jruby instead system ruby. When we try to run mentioned command with embedded jruby the installation exits with error: extconf.rb:2:in `require': no such file to load -- mkmf (LoadError) from extconf.rb:2 according the page http://rubyforge.org/forum/forum.php?thread_id=4161&forum_id=4050 seems that mkmf is missing in embedded JRuby.
It looks like you are trying to install this gem for JRuby, which doesn't work. It doesn't work on the command line either - this isn't a Gem Manager issue. It looks like the fast-debug gem requires native Ruby, so you'll have to switch to native ruby first if you're going to do this. (The Gem Manager is tied to whichever Ruby installation you are using.) sh-2.05b$ cd netbeans/work/nbbuild/netbeans/ruby1/jruby-0.9.8/ sh-2.05b$ JRUBY_HOME=`pwd`; export JRUBY_HOME sh-2.05b$ cd bin sh-2.05b$ PATH=`pwd`:$PATH; export PATH sh-2.05b$ cd sh-2.05b$ jruby $JRUBY_HOME/bin/gem install ruby-debug-base Bulk updating Gem source index for: http://gems.rubyforge.org Select which gem to install for your platform (java) 1. ruby-debug-base 0.9.1 (mswin32) 2. ruby-debug-base 0.9.1 (ruby) 3. ruby-debug-base 0.9 (ruby) 4. ruby-debug-base 0.9 (mswin32) 5. ruby-debug-base 0.8.1 (ruby) 6. ruby-debug-base 0.8.1 (mswin32) 7. ruby-debug-base 0.8 (ruby) 8. ruby-debug-base 0.8 (mswin32) 9. Skip this gem 10. Cancel installation > 2 Building native extensions. This could take a while... Error opening script file: extconf.rb (No such file or directory) ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError) ERROR: Failed to build gem native extension. ruby extconf.rb install ruby-debug-base Gem files will remain installed in /Users/tor/netbeans/work/nbbuild/netbeans/ruby1/jruby-0.9.8/lib/ ruby/gems/1.8/gems/ruby-debug-base-0.9.1 for inspection. Results logged to /Users/tor/netbeans/work/nbbuild/netbeans/ruby1/jruby-0.9.8/lib/ruby/gems/1.8/ gems/ruby-debug-base-0.9.1/ext/gem_make.out I'm not really sure what ruby-debug-base is supposed to do, or how the debugger is requiring it - Martin? Since it has native code it's hard to imagine that it would be used by JRuby.
I switched my Ruby interpreter to Ruby 1.8.5 (native ruby) and ran the Gem manager - the gem installed successfully; here's the output from the progress window. Select which gem to install for your platform (i686-darwin8.8.1) 1. ruby-debug-base 0.9.1 (mswin32) 2. ruby-debug-base 0.9.1 (ruby) 3. ruby-debug-base 0.9 (ruby) 4. ruby-debug-base 0.9 (mswin32) 5. ruby-debug-base 0.8.1 (mswin32) 6. ruby-debug-base 0.8.1 (ruby) 7. ruby-debug-base 0.8 (mswin32) 8. ruby-debug-base 0.8 (ruby) 9. Cancel installation 2 > Building native extensions. This could take a while... ruby extconf.rb install ruby-debug-base --no-rdoc --no-ri --include-dependencies --version > 0 make gcc -I. -I/Users/tor/dev/ruby/install/ruby-1.8.5/lib/ruby/1.8/i686-darwin8.8.1 -I/Users/tor/dev/ ruby/install/ruby-1.8.5/lib/ruby/1.8/i686-darwin8.8.1 -I. -fno-common -g -O2 -pipe -fno-common -c ruby_debug.c cc -dynamic -bundle -undefined suppress -flat_namespace -L"/Users/tor/dev/ruby/install/ ruby-1.8.5/lib" -o ruby_debug.bundle ruby_debug.o -ldl -lobjc make install /usr/bin/install -c -m 0755 ruby_debug.bundle /Users/tor/dev/ruby/install/ruby-1.8.5/lib/ruby/ gems/1.8/gems/ruby-debug-base-0.9.1/lib make clean Successfully installed ruby-debug-base-0.9.1
> I'm not really sure what ruby-debug-base is supposed to do, or how the > debugger is requiring it - Martin? It is for debugging CRuby only. The problem could be if the user wants to install and sets the fast debugger immediately after the IDE boots up. I may update the wiki to mention the problem being solved here (also there could be special support for installing the fast debugger - i.e. user would just invoke some action "Install Fast Debugger"....) But this issue is not about the ruby-debug-base gem only. Is is just one from many. IMHO user may not be aware of the fact that JRuby is set. (S)he just starts up the IDE, reads some tutorial in which some gem with native extension is required.... It would be the best if it is possible to recognize somehow such gems in advance and give the user the blocker dialog "You must switch to CRuby..."
Tor is right, this is gem<->jruby compatibility issue. The new information for me was that Gem manager reflects interpreter settings - i thought it was hardcoded only for jruby:) Therefore the solution is to switch in such a case to a native ruby and install this gem to a native ruby gem repository, using e.g. gem manager, it works perfectly, great!
Reassigning this issue to newly created 'ruby' component.
Changing target milestone of all resolved Ruby issues from TBD to 6.0 Beta 1 build.
as described above, not an issue.