MonadFail compatibility

[nomeata]

Trying to build the current package with GHC-8.6, I get:

[13 of 31] Compiling Graphics.PDF.Draw ( Graphics/PDF/Draw.hs, dist/build/Graphics/PDF/Draw.o )

Graphics/PDF/Draw.hs:256:5: error:
    • No instance for (Control.Monad.Fail.MonadFail Draw)
        arising from a do statement
        with the failable pattern ‘(x : xs)’
    • In a stmt of a 'do' block: (x : xs) <- gets supplyNames
      In the expression:
        do (x : xs) <- gets supplyNames
           modifyStrict $ \ s -> s {supplyNames = xs}
           return x
      In an equation for ‘supplyName’:
          supplyName
            = do (x : xs) <- gets supplyNames
                 modifyStrict $ \ s -> ...
                 return x
    |
256 |     (x:xs) <- gets supplyNames
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
cabal: Failed to build HPDF-1.4.10 (which is required by exe:tttool from
tttool-1.8).

It would be great to have HPDF with current versions of GHC, as tttool heavily relies on it.

[nomeata]

What is the maintenance status of HPDF, if I may ask?

[benjaminweb]

http://www.alpheccar.org/content/84.html, posted Nov 4, 2011 reads:

It is no more maintained because I don't have time. If some day I can find time to work on it again, I'll write a totally different API.

@alpheccar Since 7 years passed: What's the current state?