Problem installing buildr with rubygem on Windows XP

Hallo,

I try to install the ruby building tool buildr with rubygems on Windows
XP.
When I type “gem install buildr” within the console I get following
error message:


Building native extensions. This could take a while…
ERROR: Error installing rjb:
ERROR: Failed to build gem native extension.

C:/Programme/ruby/bin/ruby.exe extconf.rb install rjb
checking for jni.h… no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.

Provided configuration options:
–with-opt-dir
–without-opt-dir
–with-opt-include
–without-opt-include=${opt-dir}/include
–with-opt-lib
–without-opt-lib=${opt-dir}/lib
–with-make-prog
–srcdir=.
–curdir
–ruby=C:/Programme/ruby/bin/ruby

Gem files will remain installed in
C:/Programme/ruby/lib/ruby/gems/1.8/gems/rjb-
1.1.3 for inspection.
Results logged to
C:/Programme/ruby/lib/ruby/gems/1.8/gems/rjb-1.1.3/ext/gem_mak
e.out

I know that buildr needs native C extensions, but according to the
official buildr homepage
http://incubator.apache.org/buildr/getting_started.html#windows” you
should be asked on which platform buildr should be installed and on
mswin32 buildr should come with precompiled dlls. But I wasn’t asked!
Even when I type “gem install buildr --platform mswin32” the same error
occures.

Is there anybody with experience in installing buildr on Windows?

Thank you for your help.
maxxo

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King Dan wrote:
| Hallo,
|
| I know that buildr needs native C extensions, but according to the
| official buildr homepage
| “http://incubator.apache.org/buildr/getting_started.html#windows” you
| should be asked on which platform buildr should be installed and on
| mswin32 buildr should come with precompiled dlls. But I wasn’t asked!

Newer RubyGems versions don’t ask for the platform.

See here for possible workarounds:
http://groups.google.com/group/ruby-talk-google/browse_thread/thread/bfdf1fd27fc678a0/47defb992f6f04e2


Phillip G.
Twitter: twitter.com/cynicalryan
Blog: http://justarubyist.blogspot.com

~ - You know you’ve been hacking too long when…
…you send your SO notes like: while !(together(you,me)) miss(you);
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