message: Added missing DLLEXPORT on some IO API functions.
diff: @@ -27,7 +27,7 @@ DLLEXPORT void IO_Positions_Write( State * state, const char *file, int format=I
  ///// TODO: give bool returns for these functions to indicate success??
  // Images
  -int IO_N_Images_In_File( State * state, const char *file, int idx_image=-1, int idx_chain=-1 ) noexcept;
  +DLLEXPORT int IO_N_Images_In_File( State * state, const char *file, int idx_image=-1, int idx_chain=-1 ) noexcept;
  DLLEXPORT void IO_Image_Read( State *state, const char *file, int idx_image_infile=0,
  int idx_image_inchain=-1, int idx_chain=-1 ) noexcept;
  DLLEXPORT void IO_Image_Write( State *state, const char *file, int format=IO_Fileformat_Regular,
  @@ -44,9 +44,9 @@ DLLEXPORT void IO_Chain_Append( State *state, const char *file, int format,
  const char* comment = "-", int idx_chain=-1 ) noexcept;
  // Save the interactions
  -void IO_Image_Write_Neighbours_Exchange( State * state, const char * file,
  +DLLEXPORT void IO_Image_Write_Neighbours_Exchange( State * state, const char * file,
  int idx_image=-1, int idx_chain=-1 ) noexcept;
  -void IO_Image_Write_Neighbours_DMI( State * state, const char * file,
  +DLLEXPORT void IO_Image_Write_Neighbours_DMI( State * state, const char * file,
  int idx_image=-1, int idx_chain=-1 ) noexcept;
  // Save the spin-resolved energy contributions of a spin system
  