[Issue 22496] importC: Error: illegal combination of type specifiers

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22496

--- Comment #5 from bachmeil at yahoo.com ---
I attached a file that compiles with dmd. I had to comment out anything with:

-  `__extension__`
- Restricted pointers `*__restrict`
- `_Float128`
- `__asm__`

And in the source, anything with ISNAN, or in the preprocessed file,

- `__builtin_isnan`

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