Gentoo Packages

dev-lang/python: Enable threading support. (DON'T DISABLE THIS UNLESS YOU KNOW WHAT YOU'RE DOING)
net-misc/curl: Use threaded DNS resolver

Warning: USE flag 'threads' used by app-arch/zstd but has no description in metadata.xml, use.local.desc or use.desc
Warning: USE flag 'threads' used by media-libs/x264 but has no description in metadata.xml, use.local.desc or use.desc

Package	Local Description (use.local.desc)	Metadata Description (metadata.xml)
app-arch/zstd	-	-
dev-lang/python	-	Enable threading support. (DON'T DISABLE THIS UNLESS YOU KNOW WHAT YOU'RE DOING)
media-libs/x264	-	-
net-misc/curl	-	Use threaded DNS resolver

USE Flag: threads