[Halld-physics] Updating software for gcc 4.9.2

[Paul Mattione]

We’ve now updated our software to work with gcc 4.9.2 on the farm.  To get your software to work at your home institutions with this version of gcc, you need to:

1) Upgrade to JANA 0.7.5p2

2) Update to the latest sim-recon

And then, if you are using analysis plugins generated by MakeReactionPlugin.pl:

3) You need to update the SConstruct in each plugin.  The easiest way to do this is just to create a dummy plugin:

MakeReactionPlugin.pl dummy

and then copy the SConstruct it generates into all of your plugin folders.  

4) In your analysis plugin processor brun(), delete all reference to DEventWriterROOT.  Creating of trees is done automatically now.  

 - Paul