Entries Tagged 'Uncategorized' ↓

This one will be quick: I just uploaded my working with rails’ profile and put this nice little widget on the blog’s template. Now people with bad taste can start recommending me!

Having lunch at Nagoya:

me: I’m hearing about LDAP a lot these days, does someone know what it is?
colleague: It’s an authentication protocol.
me: Wich protocol does it run over?
colleague: Most of the time, Linux. Sometimes in Unix too.

I was trying to install Mongrel in my Ubuntu system, but unsuccessfully. After typing sudo gem install mongrel, the following error popped up:

lucas@lucas-laptop:~$ sudo gem install mongrel
Building native extensions.  This could take a while...
ERROR:  Error installing mongrel:
ERROR: Failed to build gem native extension.

/usr/bin/ruby1.8 extconf.rb install mongrel
extconf.rb:1:in `require\': no such file to load -- mkmf (LoadError)
from extconf.rb:1

Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/fastthread-1.0.1 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/fastthread-1.0.1/ext/fastthread/gem_make.out
</macro:code>

After searching a little for the answer, it seems like I had a broken ruby installation. I needed the ruby-dev package installed, because mongrel uses C/C++ in somes places for better performance.

This site explains everything in details and how you can solve it:

And now the quick solution for the problem:

sudo apt-get install build-essential
sudo apt-get install ruby1.8-dev
sudo gem install mongrel

Thank you all at soakedandsoaped.com for this tip!