ccls : C/C++/ObjC language server supporting cross references, hierarchies, completion and semantic highlighting ( https://github.com/MaskRay/ccls )
cquery : A C/C++ language server supporting multi-mullion line code base, powered by libclang. ( https://github.com/cquery-project/cquery )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a oboeverlay
For Paludis use this rsync : rsync://gentoo.zugaina.org/oboeverlay-portage
If you have a problem : ycarus(-at-)zugaina.org