ordered comparison of pointer with integer zero

[nt-pbaranovsky]

InterpretApplication/InterpretApplication.cpp: In member function ‘int QuickFAST::Examples::InterpretApplication::run()’:
InterpretApplication/InterpretApplication.cpp:255:21: error: ordered comparison of pointer with integer zero (‘FILE*’ and ‘int’)
255 | if(bufferFile <= 0)
| ~~~~~~~~~~~^~~~
make[1]: *** [Makefile.InterpretApplication:114: InterpretApplication/InterpretApplication.o] Error 1
make[1]: Leaving directory '../quickfast_1_5_0/src/Examples'
make: *** [Makefile:55: InterpretApplication] Error 2

Getting the above error.
Running ./setup.sh and then ./m.sh