// +build !linuxpackagesystem// Lgetxattr is not supported on platforms other than linux.funcLgetxattr(pathstring,attrstring)([]byte,error){returnnil,ErrNotSupportedPlatform}// Lsetxattr is not supported on platforms other than linux.funcLsetxattr(pathstring,attrstring,data[]byte,flagsint)error{returnErrNotSupportedPlatform}