ghcup requires make, but does not install it

ghcup fails to install GHC on a freshly installed Ubuntu because of missing make. Installing it with apt install make resolves the issue.

$ curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh

Welcome to Haskell!

This script will download and install the following binaries:
  * ghcup - The Haskell toolchain installer
            (for managing GHC/cabal versions)
  * ghc   - The Glasgow Haskell Compiler
  * cabal - The Cabal build tool

ghcup installs only into the following directory,
which can be removed anytime:
  /root/.ghcup

Press ENTER to proceed or ctrl-c to abort.
Note that this script can be re-run at any given time.


  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 6223k  100 6223k    0     0  7568k      0 --:--:-- --:--:-- --:--:-- 7562k
[ Info  ] Upgrading GHCup...
[ Warn  ] No GHCup update available

System requirements
  Install the following distro packages: build-essential curl libffi-dev libffi6 libgmp-dev libgmp10 libncurses-dev libncurses5 libtinfo5

Press ENTER to proceed or ctrl-c to abort.
Installation may take a while.


[ Info  ] downloading: https://downloads.haskell.org/~ghc/8.8.4/ghc-8.8.4-i386-deb9-linux.tar.xz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current




[ Error ] Build failed with NonZeroExit 1 "make" ["install"]
"_eghcup --cache install ghc recommended" failed!

Operating system: 16.04.6 (LTS) x32

The bootstrap script clearly instructs you to install build-essentials. Did you not follow the instructions?

Ah, I see. The thing is that Install the following distro packages: build-essential... Press ENTER to proceed ... Installation may take a while created an impression upon me that ghcup is going to install these packages itself as soon as I press Enter. It was unclear that "Installation" here refers to GHC (?) and not to build-essential.

Sorry for confusion, feel free to close. (And thanks for all hard work put into ghcup)

Maybe it needs to be worded better. Ideas?

I do not remember good idioms from Ubuntu world, unfortunately. Probably something along "Following packages must be installed before running ghcup: ..." and "Installation of GHC and cabal may take a while". Also either wait for user to press Enter before printing "Installation may take a while", or maybe print this message before the list of required packages.

closed via commit de09c950