$ g++ --version
g++ (Ubuntu 4.8.1-2ubuntu1~12.04) 4.8.1
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

sohail@sohail-Inspiron-N5110:~/learning/gitfiles/bitbucket/c++$ ls
a.out  hello_world.cpp  myfirst.cpp
sohail@sohail-Inspiron-N5110:~/learning/gitfiles/bitbucket/c++$ rm a.out
sohail@sohail-Inspiron-N5110:~/learning/gitfiles/bitbucket/c++$ ls
hello_world.cpp  myfirst.cpp
sohail@sohail-Inspiron-N5110:~/learning/gitfiles/bitbucket/c++$ g++ -std=c++11 hello_world.cpp
sohail@sohail-Inspiron-N5110:~/learning/gitfiles/bitbucket/c++$ ./a.out
Hello World!
sohail@sohail-Inspiron-N5110:~/learning/gitfiles/bitbucket/c++$ cd ..
sohail@sohail-Inspiron-N5110:~/learning/gitfiles/bitbucket$ cd python_files/fenics/
sohail@sohail-Inspiron-N5110:~/learning/gitfiles/bitbucket/python_files/fenics$ cd 2d/
sohail@sohail-Inspiron-N5110:~/learning/gitfiles/bitbucket/python_files/fenics/2d$ ls
dof.py
sohail@sohail-Inspiron-N5110:~/learning/gitfiles/bitbucket/python_files/fenics/2d$ python dof.py
Calling DOLFIN just-in-time (JIT) compiler, this may take some time.
In instant.recompile: The module did not compile with command 'make VERBOSE=1', see '/home/sohail/.instant/error/dolfin_compile_code_7d81444d5be087272ea3a6899f103f7bc49289a0/compile.log'
Traceback (most recent call last):
  File "dof.py", line 12, in <module>
    f = Expression('sin(pi*x[0]*x[1]')
  File "/usr/lib/python2.7/dist-packages/dolfin/functions/expression.py", line 602, in __new__
    mpi_comm=mpi_comm)
  File "/usr/lib/python2.7/dist-packages/dolfin/compilemodules/expressions.py", line 217, in compile_expressions
    mpi_comm=mpi_comm)
  File "/usr/lib/python2.7/dist-packages/dolfin/compilemodules/expressions.py", line 145, in compile_expression_code
    mpi_comm=mpi_comm)
  File "/usr/lib/python2.7/dist-packages/dolfin/compilemodules/jit.py", line 64, in mpi_jit
    return local_jit(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/dolfin/compilemodules/compilemodule.py", line 458, in compile_extension_module
    **instant_kwargs)
  File "/usr/lib/python2.7/dist-packages/instant/build.py", line 563, in build_module
    recompile(modulename, module_path, new_compilation_checksum, build_system)
  File "/usr/lib/python2.7/dist-packages/instant/build.py", line 165, in recompile
    instant_error(msg % (cmd, compile_log_filename_dest))
  File "/usr/lib/python2.7/dist-packages/instant/output.py", line 85, in instant_error
    raise RuntimeError(text)
RuntimeError: In instant.recompile: The module did not compile with command 'make VERBOSE=1', see '/home/sohail/.instant/error/dolfin_compile_code_7d81444d5be087272ea3a6899f103f7bc49289a0/compile.log'
sohail@sohail-Inspiron-N5110:~/learning/gitfiles/bitbucket/python_files/fenics/2d$