bison : A general-purpose (yacc-compatible) parser generator ( https://www.gnu.org/software/bison/ )
flamegraph : stack trace visualizer ( http://www.brendangregg.com/flamegraphs.html )
pyflame : a ptracing profiler for Python ( https://github.com/uber/pyflam )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a stefantalpalaru
For Paludis use this rsync : rsync://gentoo.zugaina.org/stefantalpalaru-portage
If you have a problem : ycarus(-at-)zugaina.org