Trouble linking RtMidi with my wdl-ol plugin (VS2015)

[Guod3]

According to the RtMidi tutorial it is necessary to provide a preprocessor definition
and library (__WINDOWS_MM__ and winmm.lib on my platform).
Where is the correct place to put __WINDOWS_MM__ ? Naturally I don't want to add a #define to Rtmidi.h.
I found a few versions of winmm.lib on my machine and placed the path (of one of them) in Linker Additional Library Directories.
The standalone app of the plugin uses RtMidi but I can't seem to reverse engineer how the project is set up.
Thanks for any help.

[Guod3]

Found it! (...eventually)

The step which killed the LNK2019 errors was the setting:
Linker, Input, Additional Dependancies: adding the symbol $(APP_LIBS)
which is defined in ProjectName.props and contains reference to the library winmm.lib which is needed by RtMidi.

Oh, and __WINDOWS_MM__ was added to <VST_DEFS> in ProjectName.props