Getting Ruby C Extensions to work with 64-bit Windows

johnzdennis

I've downloaded the C extension examples from the repository at github.com/SketchUp/ruby-c-extension-examples and played around with them a bit in Visual Studio 2015.

When I try to build them, the Hello World example builds fine, but when I try to run it in Sketchup I get the following error:

@unknownuser said:

require 'SUEX_HelloWorld'
Error: #<LoadError: 193: %1 is not a valid Win32 application. - C:/code/ruby-c-extension-examples-master/ruby-c-extension-examples-master/Debug (1.8)/SUEX_HelloWorld.so>

The SUEX_UsingSWIG fails to build courtesy of a "MSC version unmatch: _MSC_VER: 1600 is expected" error.

I found the following thread http://forums.sketchup.com/t/call-c-from-ruby-in-sketchup/17272/8 with some talk about previous versions of Visual Studio (2010 and 2013) but the current example repository has comments about making changes to allow for a VS2015 so...

I guess my main question is whether I need to make some changes to the Visual Studio project (settings somewhere?) to get it to build for 64 bit (I'm running SketchUp Pro 2016 on 64-bit Windows 10)? Or is there some other issue?

If I can just get the Hello World example to run I'll be off and running, but I've reached the point where I'm stumped. Thanks for any help.

thomthom

Remember to pick the correct build configuration for the SketchUp version you launch.

Not sure about the SWIG project - just remove it if you don't intend to use it.

johnzdennis

Of course! I feel quite silly (my only defense is that I'm very much a novice with Visual Studio). Thanks very much for the response - in a bit I'll write up a simple walkthrough in case someone else stumbles into this thread in the same situation that I was in.

thomthom

No worries. Nothing is obvious when you are new to it.
We (SketchUp) actually have a tutorial on this planned. Hope to have it published later this fall.

johnzdennis

So I'm running into a new issue; not sure if this has been encountered by anyone else, but building a "Debug" version of SUEX_HelloWorld works fine (Debug 2.0/x64) works fine, but trying to build a "Release" version fails with a bunch of C2375 errors (redefinition; different linkage) for a bunch of geometric functions. SWIG doesn't have the same problem. Any ideas?

Jim

Check out this issue on the GitHub Repo:

https://github.com/SketchUp/ruby-c-extension-examples/issues/6

Thom posted a revised RubyLib.h file that fixes these.

johnzdennis

HE SHOOTS HE SCORES!

That fixed it - thanks so much!