Kamil

``` uname -a Darwin iMac.local 16.6.0 Darwin Kernel Version 16.6.0: Fri Apr 14 16:21:16 PDT 2017; root:xnu-3789.60.24~6/RELEASE_X86_64 x86_64 i386 iMac15,1 Darwin $ nix-channel --list nixpkgs https://nixos.org/channels/nixpkgs-unstable $ nix-channel --update downloading...

Something changed, because It was compiling for ages but in the end I got the same error: ``` [ 34%] Linking CXX shared library ../../lib/libopencv_highgui.dylib Undefined symbols for architecture x86_64:...

I propose to append to the history file line by line, as they are entered by the user. Truncate the file on start or exit, but if on exit, we...

There is a max size to the history file, so that it does not grow unbounded. I realize the behavior at the moment is to read the history into memory...

I would like to make that change to haskeline, but would like to get a go ahead first. @judah