path to ghc no longer works in the 8.8.1 build
--with-ghc no longer works to build ghc (which breaks
ghcup) and the suggested replacement to use
GHC does not work.
I'd personally like to see
--with-ghc return as it will require a workaround in
ghcup (and probably other packaging tools) to support the new system anyway.
Steps to reproduce
$ curl -L --fail -O https://downloads.haskell.org/~ghc/8.8.1/ghc-8.8.1-src.tar.xz $ cd ghc-8.8.1 $ ./boot $ GHC=ghc-8.6.5 ./configure --prefix=$HOME/.ghcup/ghc/8.8.1 ... checking for gfind... no checking for find... /usr/bin/find checking for sort... /usr/bin/sort checking for GHC Git commit id... given 9c787d4d24f2b515934c8503ee2bbd7cfac4da20 checking for ghc... no configure: error: GHC is required.
Also, a minor point, but the 8.8.1 tarball required me to install alex/happy whereas this has not been needed for previous versions.