runghc does not exist in versioned form

[JamesFisher]

GHC provides several shell commands: ghc, ghci, ghc-pkg, runghc, runhaskell, and possibly others.

The ghc, ghci and ghc-pkg also have "versioned" forms—for instance, I also have available ghc-7.0.3 and ghc-7.4.1.

However, runghc does not. This means I have no easy option when requiring a specific GHC version to run a Haskell file. This also means an executable Haskell file cannot easily express a dependency on a specific version of GHC, which may be useful in some cases.

Having to type runghc -f `which ghc-7.0.3` is tedious overhead when doing this many times in a day. Furthermore, this does not appear to work at all with a shebang'd file.

[pcapriotti]

I agree it makes sense to provide a versioned executable for runghc.

[p.capriotti@…]

commit 11ca8cdc3aa72c916f4645d4027974741a0d2c66

Author: Paolo Capriotti <p.capriotti@gmail.com>
Date:   Sun Jun 17 19:17:51 2012 +0100

    Create versioned runghc wrapper (#5873)

 utils/runghc/ghc.mk |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)