[Issue 23702] compilable/test23616.c:3:20: error: missing binary operator before token "("

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23702

--- Comment #3 from Walter Bright <bugzilla at digitalmars.com> ---
__has_extension is yet another C compiler extension (not ImportC's invention).

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