[Issue 23401] importc can't select preprocessor

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23401

Walter Bright <bugzilla at digitalmars.com> changed:

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--- Comment #1 from Walter Bright <bugzilla at digitalmars.com> ---
Actually, dmd cross compiles using the -os=windows, -os=freebsd, etc., switch.
I use it all the time.

But you're right, there's a problem with cross-compilation of .c files because
how does one run the C preprocessor on another platform?

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