Strawberry perl is compiled using MSYS2+MinGW. Compiling other code using MSVC is likely to lead to issues. See for example https://github.com/StrawberryPerl/Perl-Dist-Strawberry/issues/47.

In reply to Re: C4244 Warning in inline.h file while using Win64 configuration by swl
in thread C4244 Warning in inline.h file while using Win64 configuration by MubinSkt

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