Longyu Mei wrote:

We cannot build boost 1.35 under Cygwin because Cygwin doesn't support wide char i/o yet. I heard boost 1.35 has a flag to turn off wide char. Anybody can tell me how to do it?

You don't need to do anything: it's just that some of the Boost libraries won't build on Cygwin (for example the wide character archive code), everything that does build will be perfectly usable - remember that Boost is a collection of libraries, not one big monolithic build. HTH, John.