mac os

While trying to install the MySQL gem in a Mac OS Lion, you might get an error message:

$ sudo gem install mysql -v '2.8.1'
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
....
*** 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.


In Mac Os when you edit the /etc/hosts file either by adding a new entry or changing an existing one, the changes are not reflected immediately.
So you think:
- This is simple! All I have to do is close the Terminal and open a new one!
And then you realize it did NOT work.
Since you are a smart person, you might think:
- Well, all I have to do is log out and back in! Still simple!
Only to realize again that it did NOT work.

Recently I found this nice tutorial on how to setup a git server on a Mac OS X Lion.
It goes straight to the point and you can setup the server using apache real quick!

Enjoy!

Update on October, 15th 2011: Since the referred website has been down a few times the past few days, I have added below the most important steps for setting up the git server on a MacOS X Lion.

If you are running ruby in Mac OS X Lion and are having trouble with MySQL with the ever annoying message "uninitialized constant MysqlCompat::MysqlRes please do not spend the hours I did trying to solve it. Here is how to do it. The instructions below assume you have a 64 bits processor.

Every developer has heard of 'vi' at least once in their life. That empty screen with a flashing cursos can be a little intimidating at first. After a few attempts of typing your text and nothing is echoed back to the screen, than it becomes really intimidating. :)
To help those out there who want to be able at least to quit vi editing without closing their Terminal window, here are a few tips and basic commands.
The first thing you should know about vi is that it has two modes of operation:

Being a flavor of Unix (in some level) it is possible to set some aliases in your Mac Os shell.
All you have to do is open your Terminal and type the commands below, or something else that suits more your taste.

• vi ~/.bash_profile

Once the file is open in vi, just add the following lines (well you do know how to do basic vi editing, right?)