[Issue 23757] ImportC: fail to import malloc

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23757

--- Comment #6 from ryuukk_ <ryuukk.dev at gmail.com> ---
Apparently this is the fix: https://github.com/dlang/dmd/pull/15034

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