Chapter 4. Using runghc
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## Chapter 4. Using runghc

runghc allows you to run Haskell programs without first having to compile them.

## 4.1. Flags

The runghc commandline looks like:

    runghc [runghc flags] [GHC flags] module [program flags]

The only runghc flag currently is `-f /path/to/ghc`, which tells runghc which GHC to use to run the program. If it is not given then runghc will search for GHC in the directories in the system search path.

runghc will try to work out where the boundaries between `[runghc flags]` and `[GHC flags]`, and `[GHC flags]` and `module` are, but you can use a `--` flag if it doesn't get it right. For example, `runghc -- -fglasgow-exts Foo` means runghc won't try to use `glasgow-exts` as the path to GHC, but instead will pass the flag to GHC.

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3.11. FAQ and Things To Watch Out For | Home | Chapter 5. Using GHC