Scilab relocatable under Linux/Unix

[Sylvestre Ledru]

Hi,

This may sound obvious for the Windows world but it is not that easy
under Linux.
I added an option to relocate Scilab.  (revision 21656)
In the configure, if you provide the option --enable-relocatable, it
should remove the rpath from the libraries and provides some defines.

I haven't tested this deeply.

You will find more information about this issue:
http://wiki.debian.org/RpathIssue

Sylvestre