Fix Thrift 0.2.0 Installation with Ruby 1.9.1

When I try the command "gem install thrift" with Ruby 1.9.1, I got a compilation error with something related to a C function "strlcpy()".
Then I searched the web. It seems I am not alone and the community know it.
However I do not want to wait for official update, I want to try Cassandra and Thrift is a dependency I have to use now.

So, read on if you want a dirty fix.

Start command line console and run:

  $ gem install thrift

If you got the error with "strlcpy", you should have thrift code downloaded in your ruby gems folder.
It is "C:/Ruby/lib/ruby/gems/1.9.1/gems/thrift-0.2.0" for my computer on Windows.

  $ cd C:/Ruby/lib/ruby/gems/1.9.1/gems/thrift-0.2.0/ext

If you are using linux, check the lib/.../ext folder.
Open "extconf.rb" and "struct.c" with a text editor. Comment out HAVE_STRLCPY in "struct.c" like this:

  /*
    #ifndef HAVE_STRLCPY
      static
      size_t
      strlcpy (char *dst, const char *src, size_t dst_sz)
      { ...
      }
    #endif
  */
 
Comment out have_func line in "extconf.rb" like this:

  # have_func("strlcpy", "string.h")
 
Then run:

  $ cd C:/Ruby/lib/ruby/gems/1.9.1/gems/thrift-0.2.0
  $ ruby setup.rb
  $ gem spec C:/Ruby/lib/ruby/gems/1.9.1/cache/thrift-0.2.0.gem --ruby > /
    C:/Ruby/lib/ruby/gems/1.9.1/specifications/thrift-0.2.0.gemspec
  $ gem list

You should see "thrift (0.2.0)" is in your local installed gem list.