From: Joe Cheng <code@...>
Date: 2005-07-30T11:52:42+09:00
Subject: zlib error while installing gems on Linux

Pardon my ignorance, I'm not that great with Linux.

I installed Ruby 1.8.2 from source just now, everything went fine.  I then
attempted to install gems which seemed to go fine until the end, when I
got a stack trace trying to require zlib[1].

When trying to require zlib from irb, I get:
  LoadError: No such file to load -- zlib

I thought maybe I had to install the zlib extension manually so I went
into my ruby-source/ext/zlib and ran extconf, and got this:
  checking for deflateReset() in -lz... no
  checking for deflateReset() in -llibz... no
  checking for deflateReset() in -lzlib... no

I see the appropriate zlib.h and libz.* files in the obvious places
(/usr/include and /usr/lib).

Can anyone point me in the right direction to getting gems fully
installed?  Thanks!



[1]:
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in
`require__':
No such file to load -- zlib (LoadError)
        from
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in
`require'
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems/package.rb:9
        from
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in
`require__'
        from
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in
`require'
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems/builder.rb:1
        from
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in
`require__'
        from
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in
`require'
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:61:in
`manage_gems'
         ... 7 levels...
        from setup.rb:887:in `exec_install'
        from setup.rb:705:in `invoke'
        from setup.rb:674:in `invoke'
        from setup.rb:1352