Christopher Adams wrote:
> This is installed on CentOS 5.2.
>
> I have installed Ruby 1.8.7
>
> I downloaded and expanded Gem Manager 1.3.1 and Rails 2.1.2
>
> I tried to install Rails using this:
>
> gem install rails --include-dependencies
>
> The result is this:
>
>
> I understood that zlib was built into Ruby 1.8.7. Apparently not. So, I
It is in that it is in the core ruby repository. It isn't in that the
packages distributions like centos or debian create often carve ruby
up into ruby itself and separate out bits of ruby that depend on other
libraries (like zlib, openssl, readline etc...)
> read about it and it was suggested that I manually build zlib. So, I
> downloaded ruby-zlib-0.6.0. Per the instructions, I ran this command:
>
> ruby extconf.rb && make && make install
>
> This is the result:
>
> /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
> `gem_original_require': no such file to load -- zlib (LoadError)
>
> Instlling ruby-zlib
>
> checking for deflateReset() in -lz... no
> checking for deflateReset() in -llibz... no
> checking for deflateReset() in -lzlib... 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.
The ruby-zlib library didn't get installed as you might have guessed.
While you almost certainly have the zlib libraries on your system, you
may not have the associated headers etc... a lot of distros have a
separate zlib-dev package or something along those lines. Get that,
install ruby-zlib and you should be on your way (you might have to
repeat the process with readline and/or openssl.
Fred
>
> Can anyone provide some insight as to what I need to do to get Rails
> installed?
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