Include pbd/localtime_r.h for mingw build
Include pbd/timersub.h for mingw build
Fix for small identifier being defined on windows/mingw
Assume no filesystem links on windows
Disable non-realtime midi ports in windows build - THIS NEEDS FIXING
Use PBD::GlibSemaphore on windows to signal peak
Don't call pango_ft2* functions on windows
disable pingback on win32, until we have a replacement for utsname stuff (system ID)
Use custom comparator in threadmap for pthread impl with mingw
Work around DELETE defined via windows.h