Thank you everyone for answers. Either of #undef free or __mingw_str_free(s); indeed work as expected (don't die, do de-allocate). In the end, asprintf brings more mess than convenience in this environment, so I'd rather revert to manual allocation/concatenation etc. :)

In reply to Re^2: Inline::C & Strawberry: can't free a buffer allocated with asprintf by vr
in thread Inline::C & Strawberry: can't free a buffer allocated with asprintf by vr

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