added cygwin specific stuff
added cygwin specific stuff

toastedcrumpets/eigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,Zefz/eigen,TSC21/Eigen,ritsu1228/eigen,pasuka/eigen,pasuka/eigen,Zefz/eigen,ritsu1228/eigen,pasuka/eigen,ritsu1228/eigen,TSC21/Eigen,Zefz/eigen,Zefz/eigen,toastedcrumpets/eigen,toastedcrumpets/eigen,pasuka/eigen,TSC21/Eigen,ritsu1228/eigen,toastedcrumpets/eigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,pasuka/eigen,TSC21/Eigen