graphics/libprojectm: unbreak build with Clang 6 (C++14 by default)

MilkdropPresetFactory/Parser.cpp:1408:10: error: invalid operands to binary expression ('std::istream' (aka 'basic_istream<char>') and 'nullptr_t')
  if (fs == NULL)
      ~~ ^  ~~~~
Renderer/VideoEcho.cpp:77:30: error: non-constant-expression cannot be narrowed from type 'double' to 'float' in initializer list [-Wc++11-narrowing]
                float pointsFlip[4][2] = {{-0.5*flipx, -0.5*flipy},
                                           ^~~~~~~~~~
Renderer/VideoEcho.cpp:77:30: note: insert an explicit cast to silence this issue
                float pointsFlip[4][2] = {{-0.5*flipx, -0.5*flipy},
                                           ^~~~~~~~~~
                                           static_cast<float>( )

Reported by:	pkg-fallout
Obtained from:	upstream

0 files changed, 0 insertions, 0 deletions