Win XP Pro includes the compiler cl v11. Since this code requires version 12, I tried to get the right compiler installed
and working, but no luck.

I did have the latest free version, VC 2008 Express, which uses cl v15.

I found that by changing config.h from

#if _MSC_VER != 1200

to

#if _MSC_VER < 1200

and then using Start -> Programs -> Microsoft Visual C++ 2008 Express Edition -> Visual Studio Tools ->
Visual Studio 2008 Command Prompt

and then finally

gem install ruby-serialport

it worked!

Suggest you change the config.h and then add a little readme or something to make this easier to install.

Thanks,
-Dan

Date: 2009-09-26 20:17
Sender: Dan Tebbs

Scratch the above, although it compiled, VC is not happy
with the libraries and/or dll linkages when it uses cl v15.