problem running potential foam
 

problem running potential foam
message shown is
Create time

Creating block mesh from
"/home/subh/OpenFOAM/subh-2.2.0/run/cylinder/constant/polyMesh/blockMeshDict"
Using #codeStream at line 19 in file "/home/subh/OpenFOAM/subh-2.2.0/run/cylinder/constant/polyMesh/blockMeshDict"


--> FOAM FATAL IO ERROR:
Loading a shared library using case-supplied code is not enabled by default
because of security issues. If you trust the code you can enable this
facility be adding to the InfoSwitches setting in the system controlDict:

allowSystemOperations 1

The system controlDict is either

~/.OpenFOAM/$WM_PROJECT_VERSION/controlDict

or

$WM_PROJECT_DIR/etc/controlDict



file: /home/subh/OpenFOAM/subh-2.2.0/run/cylinder/constant/polyMesh/blockMeshDict from line 17 to line 17.

From function functionEntries::codeStream::execute(..)
in file db/dynamicLibrary/dynamicCode/dynamicCode.C at line 81.

FOAM exiting