squash C++ compiler errors with Intel 15
squash C++ compiler errors with Intel 15

[ 31%] Building CXX object CMakeFiles/El.dir/src/io/File.cpp.o
/global/project/projectdirs/m1907/Elemental/src/io/File.cpp(72): error: declaration is incompatible with "std::streampos El::FileSize(std::ifstream &)" (declared at line 20 of "/tmp/jeff/include/El/io.hpp")
  std::ifstream::pos_type FileSize( ifstream& file )
                          ^

/global/project/projectdirs/m1907/Elemental/src/io/File.cpp(72): error: identifier "ifstream" is undefined
  std::ifstream::pos_type FileSize( ifstream& file )
                                    ^

/global/project/projectdirs/m1907/Elemental/src/io/File.cpp(72): error: identifier "file" is undefined
  std::ifstream::pos_type FileSize( ifstream& file )
                                              ^

/global/project/projectdirs/m1907/Elemental/src/io/File.cpp(73): error: expected a ";"
  {
  ^

/global/project/projectdirs/m1907/Elemental/src/io/File.cpp(81): warning #12: parsing restarts here after previous syntax error
  } // namespace El
  ^

sg0/Elemental,justusc/Elemental,sg0/Elemental,mcopik/Elemental,birm/Elemental,sg0/Elemental,mcopik/Elemental,sg0/Elemental,sg0/Elemental,justusc/Elemental,birm/Elemental,justusc/Elemental,birm/Elemental,birm/Elemental,mcopik/Elemental,justusc/Elemental,justusc/Elemental,sg0/Elemental,justusc/Elemental,mcopik/Elemental,birm/Elemental,mcopik/Elemental,mcopik/Elemental,birm/Elemental