fast_double_parser : Parse strings into double floating-point values ( https://github.com/lemire/fast_double_parser )
gperftools : Fast, multi-threaded malloc() and nifty performance analysis tools ( https://github.com/gperftools/gperftools )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gerislay
For Paludis use this rsync : rsync://gentoo.zugaina.org/gerislay-portage
If you have a problem : ycarus(-at-)zugaina.org