On Mon, 24 Feb 2014, Frédéric Dupont wrote:
 Gretl (last available snapshot) has a problem at launch time :
[...]
 Dyld Error Message:
  Library not loaded: /usr/lib/libmpi.0.dylib
  Referenced from: /Applications/fredmath/Gretl.app/Contents/Resources/bin/gretl
  Reason: image not found 
Yes, this is a known issue; see
http://lists.wfu.edu/pipermail/gretl-users/2014-February/009645.html
It'll be fixed by later today.
Allin Cottrell