Feature request : Freebsd

[devosalain]

It does not compile on Freebsd 12.1.
Error :
/home/x/_kit/kit-dev x> $stack build
Preparing to install GHC (ino64) to an isolated location.
This will not interfere with any system-level installation.
Downloaded ghc-ino64-8.4.3.
rts-1.0: Warning: .:464:1: The field "hugs-options" is deprecated. hugs isn't supported anymore
Installed GHC.
Found an invalid compiler at "/usr/home/x/.stack/programs/x86_64-freebsd/ghc-ino64-8.4.3/bin/ghc-8.4.3": Control.Exception.Safe.throwString called with:

Could not find any of: ["/usr/home/x/.stack/programs/x86_64-freebsd/ghc-ino64-8.4.3/bin/haddock-8.4.3","/usr/home/x/.stack/programs/x86_64-freebsd/ghc-ino64-8.4.3/bin/haddock-ghc-8.4.3","/usr/home/x/.stack/programs/x86_64-freebsd/ghc-ino64-8.4.3/bin/haddock","/usr/home/x/.stack/programs/x86_64-freebsd/ghc-ino64-8.4.3/bin/haddock-ghc"]
Called from:
throwString (src/Stack/Setup.hs:721:25 in stack-2.1.3.1-inplace:Stack.Setup)

Used stack version :
hs-stack-2.1.3.1
Default ghc:
ghc-8.6.5_3