Neil Ferguson wrote: > Can GCC 3.3 compile 64-bit binaries that work reliably on AMD64? You might find it comforting to know that the Debian GNU/Linux port to amd64 compiled almost all of the thousands of packages in Debian using the gcc 3.3.5 compiler. (It's unofficial because Debian has yet to include the port in their mainstream yet. That part is happening now.) > What would the minimum recommended version of GCC be? (I'd be curious to > know even if GCC 3.3 is OK, for my own historical interest.) Of course as bug fixes and enhancements are made the best version increases version number. So while 3.3 is probably okay depending upon what you are doing that does not mean that bugs don't exist. Version 3.4 is better and version 4.0 is better and so on and so on. Probably the best thing is to just push forward and see how it goes. If this is your first push into 64-bit space then the biggest problems will be type safety in your code. Bob