[Boost-users] how to link to a specific version of windows CRT

Hi,there,     I am using boost 1.42. The default CRT linked by it is  like this:         name='Microsoft.VC90.CRT' version='9.0.21022.8'   Now I want to link to the another version, say, version="9.0.30729.4148", can anybody    tell where and how to specify this option when I build the binary from source? Thanks in advance OrNot