GHC 10.1 beta build error

installPackage: internal error: stg_ap_ppp_ret
    (GHC version 6.8.3 for i386_apple_darwin)
    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
make[2]: *** [build.stage.1] Abort trap
make[1]: *** [build.stage.1] Error 2
make: *** [stage1] Error 1

When building ghc-6.10.0.20080921

Edited Mar 09, 2019 by Ian Lynagh -

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