[FFmpeg-devel] [PATCH v17 1/5] libavutil: Add wchartoutf8(), wchartoansi(), utf8toansi() and getenv_utf8()

[nil-admirari at mailo.com]

> Or any reuses the #ifs from getenv_utf8.h.
> https://github.com/mkver/FFmpeg/commits/getenv contains a version that
> does this.

Introduced getenv_dup() and simplified #ifs a little:
https://ffmpeg.org/pipermail/ffmpeg-devel/2022-June/297841.html