Editing Adding new programs to Madagascar (section)

==Tips and tricks==
===Backups===
You may want to back up only your developer directory, not the entire Madagascar source tree. If you do not want to or do not have the permissions to change the backup scripts, you will need to make your RSF user directory a link to somewhere else. To get that to work, you need to modify your <tt>username/SConstruct</tt>. First thing in the file, define 
<syntaxhighlight lang="python">
RSF_src_root = '/path/to/madagascar/source/root/'
</syntaxhighlight>
Then, replace <tt>../..</tt> throughout the SConstruct with
<syntaxhighlight lang="python">
os.path.join(RSF_src_root,'whatever_followed_after_dotdots')
</syntaxhighlight>

===External libraries===
To link your programs to an external library, add to the <tt>env.Prepend</tt> statement in <tt>username/Sconstruct</tt>
the paths to its <tt>include</tt> dir, <tt>lib</tt> dir and the name of the library you are linking to.



===Emacs customization===

If you use [http://www.gnu.org/software/emacs/ Emacs], the following might be helpful.

* Install the [http://www.emacswiki.org/cgi-bin/wiki/PythonMode python mode] (if you don't have it installed already) and put 
<syntaxhighlight lang="lisp">
(setq auto-mode-alist
      (cons '("SConstruct" . python-mode) auto-mode-alist))
</syntaxhighlight>
:in your <tt>.emacs</tt> file to enable it on <tt>SConstruct</tt> files.

* Put 
<syntaxhighlight lang="lisp">
(set-default 'compile-command "scons")
</syntaxhighlight>
:in your <tt>.emacs</tt> file to have <tt>scons</tt> as the default compile command.

* Use 
<syntaxhighlight lang="lisp">
(add-hook 'c-mode-common-hook
   '(lambda () (c-set-style "linux")
        (c-set-offset 'case-label 4)
        (setq c-basic-offset 4)))
</syntaxhighlight> 
:to make sure that the identation in C files follows the previously adopted convention.

=== Vim customization ===

To enable syntax highlighting on SConstruct files in vim, add the following to your <tt>~/.vimrc</tt> file:

<syntaxhighlight lang="bash">
au BufRead,BufNewFile SConstruct set filetype=python

syntax enable
</syntaxhighlight>