/usr/lib/x86_64-linux-gnu/wine/libd3dim.def is in libwine-dev 1.8.7-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | ; File generated automatically from ./dlls/d3dim/d3dim.spec; do not edit!
LIBRARY d3dim.dll
EXPORTS
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