SHELL := bash .ONESHELL: .SHELLFLAGS := -eu -o pipefail -c .DELETE_ON_ERROR: MAKEFLAGS += --warn-undefined-variables MAKEFLAGS += --no-builtin-rules ifeq ($(origin .RECIPEPREFIX), undefined) $(error This Make does not support .RECIPEPREFIX. Please use GNU Make 4.0 or later) endif .RECIPEPREFIX = > .PHONY: build build: > nix develop -c cabal build all .PHONY: test-core test-core: > nix develop -c cabal run hbs2-core:test