bindist configure doesn't check for `make`?
User on IRC reports ghcup failing during the make
stage with:
[ ghc-make ] ghcup: make: executeFile: does not exist (No such file or directory)
indicating that bindist configure doesn't check for make existence.
https://gitlab.haskell.org/ghc/ghc/-/blob/master/distrib/configure.ac.in
We probably want to use AC_CHECK_PROG
and error out if it doesn't exist.