Hotfix/osx fix (#1994)
Hotfix/osx fix (#1994)

* #include an absolute path didn't work - because paths were taken to always be relative.

* OSX 10.15 produced error/warning for not using ref.
csyonghe/slang,csyonghe/slang,shader-slang/slang,shader-slang/slang,shader-slang/slang,csyonghe/slang