Gentoo Packages

Warning: USE flag 'llvm-libunwind' used by dev-lang/rust but has no description in metadata.xml, use.local.desc or use.desc
Warning: USE flag 'llvm-libunwind' used by dev-util/google-perftools but has no description in metadata.xml, use.local.desc or use.desc
Warning: USE flag 'llvm-libunwind' used by sys-process/htop but has no description in metadata.xml, use.local.desc or use.desc

Package	Local Description (use.local.desc)	Metadata Description (metadata.xml)
dev-lang/rust	-	-
dev-util/google-perftools	-	-
sys-process/htop	-	-

USE Flag: llvm-libunwind