To be honest, the ANE support is big mess from my point of view.... I had to use Google to find hints how to build my own code after few years and a few device losts 🙂
Anyway.. I managed to compile the OSX part again without error after adding missing
Adobe AIR_64 framework, but when I run it on Mac with the new ANE, I get error:
ArgumentError: Error #3500: The extension context does not have a method with the name AIRSteam_Init. although I can see it in the binary.
I really would like to know, if there is some missing part on my side again, or if there could be a show stopper that Steam dynamic library is only for osx32. Problem is that Steam support is on par with Adobe support in such a cases, which is sad.