* [[.:Package managers:]]
  * [[.:Software building:]]


====== Installation ======
===== SSH =====
To enable ssh : //System Preferences//%%/%%//Sharing//%%/%%//Remote Login//

To allow connection without password, put the keys in ''/.ssh/authorized_keys'' (file and directory have to created).

===== Mercurial =====

<code bash>
brew install hg
</code>

or

<code bash>
brew install mercurial
</code>

On installation ending, the following message is displayed, which apparently can be safely ignored for a simple use of //mercurial// :
<code>
Python modules have been installed and Homebrew's site-packages is not
in your Python sys.path, so you will not be able to import the modules
this formula installed. If you plan to develop with these modules,
please run:
  mkdir -p /Users/csimon/Library/Python/2.7/lib/python/site-packages
  echo 'import site; site.addsitedir("/usr/local/lib/python2.7/site-packages")' >> /Users/csimon/Library/Python/2.7/lib/python/site-packages/homebrew.pth

</code>


====== Launching some tools without 'sudo' ======

By default, some tools have to be launched with ''sudo'' to work correctly. This concerns namely :
  * ''dtruss'',
  * ''gdb-apple'' (//GNU// debugger).


To allow them to work properly without  ''sudo'', change their permissions the following way :

<code bash>
sudo chmod u+s <path to bin>
</code>

Be careful : this can be an important security issue !