An unofficial branch of the original Jimmy Bogard AutoMapper.Data it has been modified supporting last AutoMapper version working in Visual Studio 2012
Available as Nuget package AutoMapper.DataReaderMapper
Using:
AutoMapper.Mapper.Initialize(cfg =>
{
AutoMapper.Mappers.MapperRegistry.Mappers.Add(new AutoMapper.DataReaderMapper.DataReaderMapper(AutoMapper.Mapper.Engine));
cfg.CreateMap(typeof(IDataReader), typeof(TargetClass));
});