Can't find libxml-ruby gem
in [Ruby]
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From: Peter Alta on 28 Dec 2009 16:33 I am unable to find a libxml-ruby gem. I've pasted some diagnostic info below. Could someone please point me in the right direction? Thank you. C:\>irb irb(main):001:0> require 'libxml-ruby' LoadError: no such file to load -- libxml-ruby from C:/Program Files/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require' from C:/Program Files/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require' from (irb):1 irb(main):002:0> exit C:\>gem install -r libxml-ruby ERROR: While executing gem ... (Gem::GemNotFoundException) Could not find libxml-ruby (> 0) in any repository C:\>gem sources *** CURRENT SOURCES *** http://gems.rubyforge.org http://gems.github.com C:\>gem -v 0.9.4 C:\>ruby -v ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32] -- Posted via http://www.ruby-forum.com/.
From: Peter Alta on 28 Dec 2009 17:31 Phillip Gawlowski wrote: > > You can get a MinGW build of Ruby + devkit at RubyInstaller.org. > RubyGems at RubyGems.org Thank you. That was a helpful start. I updated to RubyGems 1.3.5 and installed the MingGW build with no apparent problem. > You will need the devkit, and have to go header-file hunting. What is "header-file hunting"? I don't even know where to begin. Is installing libxml-ruby beyond the scope of a non-C programmer? Here is what I get from gem now: ---------------------------------------------------------------------- C:\>gem install -r libxml-ruby Building native extensions. This could take a while... ERROR: Error installing libxml-ruby: ERROR: Failed to build gem native extension. checking for socket() in -lsocket... no checking for gethostbyname() in -lnsl... no checking for atan() in -lm... yes checking for inflate() in -lz... no checking for inflate() in -lzlib... no checking for inflate() in -lzlib1... 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. ---------------------------------------------------------------------- I'm a little confused by "You may need configuration options." Is that meant for the "gem" command? Or for the extconf.rb that gem is apparently running? Any hints on what to do next? Thanks much. -- Posted via http://www.ruby-forum.com/.
From: Phillip Gawlowski on 28 Dec 2009 17:51 On 28.12.2009 23:31, Peter Alta wrote: > What is "header-file hunting"? Finding all the header-files the compiler (NOT the gem command, but the compiler the devkit provides!) needs to be able to build a program or a library. > I don't even know where to begin. > Is installing libxml-ruby beyond the scope > of a non-C programmer? On Windows? Probably. Very likely, in fact. > Here is what I get from gem now: > > ---------------------------------------------------------------------- > C:\>gem install -r libxml-ruby > Building native extensions. This could take a while... > ERROR: Error installing libxml-ruby: > ERROR: Failed to build gem native extension. > > checking for socket() in -lsocket... no > checking for gethostbyname() in -lnsl... no > checking for atan() in -lm... yes > checking for inflate() in -lz... no > checking for inflate() in -lzlib... no > checking for inflate() in -lzlib1... 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. > ---------------------------------------------------------------------- > > I'm a little confused by "You may need configuration > options." Is that meant for the "gem" command? Or for > the extconf.rb that gem is apparently running? Neither. It's for the C-Compiler. > Any hints on what to do next? Use Nokogiri (nokogiri.org). ;) Or, if you must use libxml, set up a virtual machine with Linux, and use that (which brings its own set of difficulties. virtualbox.org is a good start to get going with virtualization). The Devkit requires you to be either lucky, or to be at least well-versed enough in working with compilers, to fix the issues the configuration step throws at you. It's best if you are seasoned-enough C-Programmer to dig into the actual C code to fix bugs, and produce a build that can be distributed for Windows. What you can do, is log a bug with the libxml-ruby team, and lobby them to provide a MinGW32 compatible build. -- Phillip Gawlowski
From: Tim Ferrell on 26 Jan 2010 16:22 Phillip Gawlowski wrote: > On 28.12.2009 23:31, Peter Alta wrote: > >> What is "header-file hunting"? > > Finding all the header-files the compiler (NOT the gem command, but the > compiler the devkit provides!) needs to be able to build a program or a > library. > I was able to get this gem to build on Windows (Win7 x64 to be precise) by downloading the MinGW-based oneclick installer (RC1 as of now) and the devkit that accompanies it and installing them... I then found the necessary headers and libs needed to get the libxml-ruby gem to build and packaged them up: http://www.mcgeecorp.com/downloads/win-install-libxml-ruby.zip ~760kb Just unzip and run the ruby install script to build... Note: the script assumes you installed Ruby to C:\Ruby ... you can also pass an alternate install dir to the script: C:\Ruby19\bin\ruby install_libxml_gem.rb C:/Ruby19 HTH, Tim -- Posted via http://www.ruby-forum.com/.
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