THIS DOESN'T WORK NEEDS CHECKING SHELL = /bin/bash REPOSITORY = https://github.com/mkdocs/mkdocs.git check_env_vars: ifdef OUTPUT_PATH OUTPUT_PATH := ${OUTPUT_PATH}/mkdocs else $(error OUTPUT_PATH is undefined) endif venv-3.11: export PYENV_VERSION=3.11 python3 -m venv venv repository: git clone ${REPOSITORY} repository 1.5.3: check_env_vars venv-3.11 repository source venv/bin/activate cd repository git checkout tags/$@ pip install mkdocs pymdown-extensions mkdocs build mkdir --parents "${OUTPUT_PATH}" cp --recursive site "${OUTPUT_PATH}/$@" .ONESHELL: .SUFFIXES: .PHONY: .DELETE_ON_ERROR: