>> Building libDelphes.so
ld: warning: in /Users/donerkebab/Desktop/work/software/pythia8176/lib/archive/libpythia8.a, file was built for unsupported file format which is not the architecture being linked (i386)
ld: warning: in /usr/local/lib/libLHAPDF.dylib, file was built for unsupported file format which is not the architecture being linked (i386)
ld: warning: in /usr/local/lib/libgfortran.dylib, file was built for unsupported file format which is not the architecture being linked (i386)
Undefined symbols:
  "Pythia8::Pythia::SUBRUNDEFAULT", referenced from:
      __ZN7Pythia86Pythia13SUBRUNDEFAULTE$non_lazy_ptr in PileUpMergerPythia8.o
     (maybe you meant: __ZN7Pythia86Pythia13SUBRUNDEFAULTE$non_lazy_ptr)
  "Pythia8::Pythia::~Pythia()", referenced from:
      PileUpMergerPythia8::Finish()      in PileUpMergerPythia8.o
  "Pythia8::Pythia::readFile(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool, int)", referenced from:
      PileUpMergerPythia8::Init()      in PileUpMergerPythia8.o
  "Pythia8::Pythia::next()", referenced from:
      PileUpMergerPythia8::Process()      in PileUpMergerPythia8.o
  "Pythia8::Pythia::Pythia(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool)", referenced from:
      PileUpMergerPythia8::Init()      in PileUpMergerPythia8.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make: *** [libDelphes.so] Error 1