fix Darwin build
fix Darwin build

ruppmatt/cocotron,plasq/cocotron,gemu2015/cocotron-sierra,guestOS/guestOS,yuhangwang/cocotron,JackLian/cocotron,cyclaero/cocotron,cyclaero/cocotron,cjwl/cocotron,gemu2015/cocotron-sierra,JackLian/cocotron,cneira/cocotron,crystax/android-vendor-cocotron,cyclaero/cocotron,Suninus/cocotron,cyclaero/cocotron,cneira/cocotron,plasq/cocotron,yuhangwang/cocotron,yuhangwang/cocotron,cneira/cocotron,gemu2015/cocotron-sierra,JackLian/cocotron,cjwl/cocotron,crystax/android-vendor-cocotron,ruppmatt/cocotron,JackLian/cocotron,Suninus/cocotron,ruppmatt/cocotron,crystax/android-vendor-cocotron,guestOS/guestOS,guestOS/guestOS,gemu2015/cocotron-sierra,Suninus/cocotron,cjwl/cocotron,ruppmatt/cocotron,guestOS/guestOS,plasq/cocotron,cjwl/cocotron,cneira/cocotron,yuhangwang/cocotron,plasq/cocotron,crystax/android-vendor-cocotron,Suninus/cocotron