runghc doesn't respect -pgmF

Summary

runghc doesn't seem to support registering a preprocessor. Is this expected?

Steps to reproduce

# fails as expected with "could not execute: foo"
ghc AnyFile.hs -F -pgmF=foo

# tries to compile without checking foo
runghc AnyFile.hs -- -F -pgmF=foo

Expected behavior

It should work. If this is intentional, the docs for runghc should be updated to include the differences with ghc. The documentation currently seems to indicate that flags are passed directly to GHC (and should thus be respected).

Environment

• GHC version used: 9.2.3

Optional:

• Operating System:
• System Architecture: