A problem with mongrel install

hi all:
when i install mongrel

Building native extensions. This could take a while...
extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
        from extconf.rb:1

ERROR: Error installing gem mongrel-0.3.13.3.gem[.gem]: ERROR: Failed
to build gem native extension.
Gem files will remain installed in
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.3 for inspection.

Are you on Debian or something equally hostile to Ruby?

Make sure you've installed ruby-dev or its equivalent.

-austin

···

On 9/16/06, 富丽饼干 <richafu@gmail.com> wrote:

hi all:
when i install mongrel

Building native extensions. This could take a while...
extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)
        from extconf.rb:1

ERROR: Error installing gem mongrel-0.3.13.3.gem[.gem]: ERROR: Failed
to build gem native extension.
Gem files will remain installed in
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.13.3 for inspection.

--
Austin Ziegler * halostatue@gmail.com * http://www.halostatue.ca/
               * austin@halostatue.ca * You are in a maze of twisty little passages, all alike. // halo • statue
               * austin@zieglers.ca