C-fluidsynth.c C-fluidsynth.c(15): fatal error C1083: Cannot open include file: 'unistd.h': No such file or directory Installing https://luarocks.org/fluidsynth-1.7-0.src.rock... Using https://luarocks.org/fluidsynth-1.7-0.src.rock... switching to 'build' mode cl /nologo /MD /O2 -c -FoC-fluidsynth.obj -IZ:/sp/Dropbox/Windows/x86/luajit/src/ C-fluidsynth.c