Re: Installation of Octave on MacBook Pro under OS X Mountain Lion

[Dushan Mitrovich]

Michael Farmer <address@hidden> wrote:
> 
> Hi,
>               I have for some time been attempting to install "Octave'" on my 
> MacBook Pro (OS X 10.8.3, 4GB, 2.53 GHz Intel Core i5) with little 
> success. My initial attempt was by using MacPorts which at one point 
> appeared to be succeeding only to end in a message "Error: the 
> following dependencies were not installed ??."
> 
>       In desperation I Googled "Octave Problems with Mac OS X" and found a 
> conversation between Barry Fitzgerald and Stuart Edwards  at:-
> 
> 
> 
http://octave.1599824.n4.nabble.com/Octave-Problem-with-Mac-OS-X-td4292095.html
> 
> 
>  which ultimately resulted in success, so I thought, give this a try!!!
> 
>       Having followed the procedure given I arrived at a point where I had 
> both an Octave and Gnuplot icon in my applications folder. Upon 
> clicking the Octave icon, I consistently get a message in a pop-up 
> window which says " Octave.app is damaged and should be moved to the 
> Trash". I have tried deleting both Octave and Gnuplot by dragging 
> their icons from the Applications folder to the Trash, deleting the 
> downloaded .dmg file and starting from scratch. The file 
> (octave-3.4.0-i386.dmg) was downloaded from:-
> 
> 
> 
http://sourceforge.net/projects/octave/files/Octave%20MacOSX%20Binary/2011-04-21%20binary%20of%20Octave%203.4.0/
> 
> 
>               I realise that the most probable cause of my problem is simple 
> ignorance on my part but I hope someone can point me in the right 
> direction.
> 
>       Thanks,
> 
>       Mick Farmer

It's probably because Octave is unsigned, and Mountain Lion's 
Gatekeeper throws it out.

I had just gotten an iMac with Mountain Lion on it and tried to install 
the muCommander 0.9 file manager.  It installed fine, but when I tried 
to start it I got the same type of message: "muCommander.app is damaged 
and should be moved to the Trash".

Some headscratching later I Googled for forums relating to muCommander 
and saw lots of discussions about that exact problem.  It seems the 
problem is related to Gatekeeper and how Java is implemented in ML.  A 
temporary but not optimal solution is to go to System Preferences -> 
Security and Privacy and allow installation of programs from Anywhere 
(not just the App store).

That worked for me.  When selecting the 'Anywhere' option a message 
pops up saying an unsigned program can bypass Gatekeeper (while having 
it still generally active) by starting the program while holding down 
the Control key.  I tried this once while starting muCommander from the 
Dock, but it didn't help.  YMMV.

- Dushan