fix Makefile to work with vmware_workstation on Cygwin
fix Makefile to work with vmware_workstation on Cygwin

quarkslab/windows,MSumulong/windows,samepage-labs/windows-templates,quarkslab/windows,ambakshi/windows,quarkslab/windows,TaylorMonacelli/boxcutter-windows,seancoyne/windows,boxcutter/windows,TaylorMonacelli/boxcutter-windows,seancoyne/windows,StefanScherer/windows,c-owens/windows,boxcutter/windows,MYOB-Technology/packer-sqlserver,ambakshi/windows,HirotakaKato/boxcutter-windows-ja,StefanScherer/windows,samepage-labs/windows-templates,TaylorMonacelli/boxcutter-windows,MSumulong/windows,seancoyne/windows,TaylorMonacelli/boxcutter-windows,ambakshi/windows,HirotakaKato/boxcutter-windows-ja,c-owens/windows,samepage-labs/windows-templates,StefanScherer/windows,HirotakaKato/boxcutter-windows-ja,boxcutter/windows,MSumulong/windows,c-owens/windows