Fix build script for cross compiling to Windows

[messense]

No description provided.

[codecov]

Codecov Report

Merging #13 (ff9b54f) into master (7bb49f6) will decrease coverage by 0.71%.
The diff coverage is n/a.

❗ Current head ff9b54f differs from pull request most recent head 11ebfa7. Consider uploading reports for the commit 11ebfa7 to get more accurate results

@@            Coverage Diff             @@
##           master      #13      +/-   ##
==========================================
- Coverage   89.35%   88.64%   -0.72%     
==========================================
  Files           3        3              
  Lines         451      458       +7     
==========================================
+ Hits          403      406       +3     
- Misses         48       52       +4     

Impacted Files	Coverage Δ
src/lib.rs	87.82% <0.00%> (-0.75%)	⬇️

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