stack ghci should allow multiple --ghc-options

[ndmitchell]

C:\Neil\hoogle>stack ghci --ghc-options cbits\text_search.o --ghc-options Main.hs
Setting codepage to UTF-8 (65001) to ensure correct output from GHC
Usage: stack ghci [TARGET] [--ghc-options OPTION] [--with-ghc GHC] [--no-load]
                  [--package ARG]
  Run ghci in the context of project(s)

Would be nice if I could pass two --ghc-options and they would be passed as different options to GHC.

[chrisdone]

You can pass --ghc-options="foo bar mu" like in cabal.

[chrisdone]

(Having a list of --ghc-options arguments and then concat'ing the list is also acceptable.)

[borsboom]

Related: #652

[istathar]

This seems to not be working. Do you want a new issue, or commentary here?

stack build regex-tdfa-text --ghc-options=-XFlexibleContexts

doesn't pick up FlexibleContexts, build fails.

AfC

[snoyberg]

I'd definitely say a new issue. I don't actually see how that report is related to the original one, maybe I'm missing something.

[masaeedu]

@chrisdone On Windows, I'm getting:

$ stack ghci --ghc-options="-ddump-simpl -dsuppress-idinfo"
Configuring GHCi with the following packages:
GHCi, version 8.0.2: http://www.haskell.org/ghc/  :? for help
ghc.EXE: unrecognised flag: -ddump-simpl -dsuppress-idinfo

Usage: For basic information, try the `--help' option.

Using either option individually seems to work, and I'm just copy pasting these options, so I'm pretty sure there isn't anything wrong with the options themselves.

[mgsloan]

@masaeedu I've opened #3315 and created a PR that should address that.