Guillaume Maudoux
734c5fdcd6
clangStdenv compiles with a single warning: ``` warning: destructor called on non-final 'nix::PosAdapter' that has virtual functions but non-virtual destructor [-Wdelete-non-abstract-non-virtual-dtor] ``` This fixes the warning by making the destructor of PosAdapter virtual, deffering to the correct destructor from the concrete child classes. This has no impact in the end, as none of these classes have specific destructors. Technicaly, it may be faster not to have this indirection, but as per the warning, there is only one place where we have to delete abstract PosAdapter values. Not worth bikesheding I guess.
Nix
Nix is a powerful package manager for Linux and other Unix systems that makes package management reliable and reproducible. Please refer to the Nix manual for more details.
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