Add ability to use a different ghc version other than the ghc build clash about clash-compiler HOT 2 OPEN

I'm not 100% sure if I get what you want to do. In general I think the easiest setup is using the clash-starters or something close to it which I expect should sidestep this issue since it uses the same GHC version for everything.

from clash-compiler.

I agree with Rowan, I think you should generally house your Clash design in a starter project. I am also not 100% sure if this is your question.

That said, for quick one-off tests, I do have this:

$ cat ~/.local/bin/clash-1.8
#!/bin/sh

unset DIR
DIR="$(pwd)"
cd ~/src/clash/clash-one-eight
stack run --cwd "$DIR" clash -- "$@"

$ cat ~/.local/bin/clashi-1.8 
#!/bin/sh

unset DIR
DIR="$(pwd)"
cd ~/src/clash/clash-one-eight
stack run --cwd "$DIR" clashi -- "$@"

It helps me to run a freestanding .hs file with a Clash design. The dir clash-one-eight is just an empty starter project, made with

$ stack new clash-one-eight clash-lang/simple
$ cd clash-one-eight
$ stack build

from clash-compiler.