[CMake] set CMAKE_INSTALL_PREFIX in CMakeLists

[Marcel Loose]

>>> On 30-11-2010 at 21:36, in message
<759EE5DC-038D-4C17-91DA-98121049AB09 at mac.com>, S Roderick
<kiwi.net at mac.com>
wrote: 
> On Nov 30, 2010, at 13:40 , David Cole wrote:
> 
>> It probably works "accidentally" if you do the set before the
project 
> command.
> 
> That is what we do, and it definitely works for us. Set it _before_
the 
> PROJECT() statement.
 
+1 for me. I have a LofarInit.cmake file that is included before
PROJECT(LOFAR). I wouldn't want this "feature" to break.

Regards,
Marcel Loose.