--- /dev/null
+PSYSH_SRC = bin src box.json.dist composer.json build/stub
+PSYSH_SRC_FILES = $(shell find src -type f -name "*.php")
+VERSION = $(shell git describe --tag --always --dirty=-dev)
+
+COMPOSER_OPTS = --no-interaction --no-progress --verbose
+COMPOSER_REQUIRE_OPTS = $(COMPOSER_OPTS) --no-update
+COMPOSER_UPDATE_OPTS = $(COMPOSER_OPTS) --prefer-stable --no-dev --classmap-authoritative --prefer-dist
+
+
+# Commands
+
+.PHONY: help clean build dist
+.DEFAULT_GOAL := help
+
+help:
+ @echo "\033[33mUsage:\033[0m\n make TARGET\n\n\033[33mTargets:\033[0m"
+ @grep -E '^[a-zA-Z0-9_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf " \033[32m%-7s\033[0m %s\n", $$1, $$2}'
+
+clean: ## Clean all created artifacts
+ rm -rf build/*
+ rm -rf dist/*
+ rm -rf vendor-bin/*/vendor/
+
+build: ## Compile PHARs
+build: build/psysh/psysh build/psysh-compat/psysh build/psysh-php54/psysh build/psysh-php54-compat/psysh
+
+dist: ## Build tarballs for distribution
+dist: dist/psysh-$(VERSION).tar.gz dist/psysh-$(VERSION)-compat.tar.gz dist/psysh-$(VERSION)-php54.tar.gz dist/psysh-$(VERSION)-php54-compat.tar.gz
+
+
+# All the composer stuffs
+
+composer.lock: composer.json
+ composer install
+ touch $@
+
+vendor/autoload.php: composer.lock
+ composer install
+ touch $@
+
+vendor/bin/box: vendor/autoload.php
+ composer bin box install
+ touch $@
+
+
+# Lots of PHARs
+
+build/stub: bin/build-stub bin/psysh LICENSE
+ bin/build-stub
+
+build/psysh: $(PSYSH_SRC) $(PSYSH_SRC_FILES)
+ rm -rf $@ || true
+ mkdir $@
+ cp -R $(PSYSH_SRC) $@/
+ composer config --working-dir $@ platform.php 7.0
+ composer require --working-dir $@ $(COMPOSER_REQUIRE_OPTS) php:'>=7.0.0'
+ composer update --working-dir $@ $(COMPOSER_UPDATE_OPTS)
+
+build/psysh-compat: $(PSYSH_SRC) $(PSYSH_SRC_FILES)
+ rm -rf $@ || true
+ mkdir $@
+ cp -R $(PSYSH_SRC) $@/
+ composer config --working-dir $@ platform.php 7.0
+ composer require --working-dir $@ $(COMPOSER_REQUIRE_OPTS) php:'>=7.0.0'
+ composer require --working-dir $@ $(COMPOSER_REQUIRE_OPTS) symfony/polyfill-iconv symfony/polyfill-mbstring hoa/console
+ composer update --working-dir $@ $(COMPOSER_UPDATE_OPTS)
+
+build/psysh-php54: $(PSYSH_SRC) $(PSYSH_SRC_FILES)
+ rm -rf $@ || true
+ mkdir $@
+ cp -R $(PSYSH_SRC) $@/
+ composer config --working-dir $@ platform.php 5.4
+ composer update --working-dir $@ $(COMPOSER_UPDATE_OPTS)
+
+build/psysh-php54-compat: $(PSYSH_SRC) $(PSYSH_SRC_FILES)
+ rm -rf $@ || true
+ mkdir $@
+ cp -R $(PSYSH_SRC) $@/
+ composer config --working-dir $@ platform.php 5.4
+ composer require --working-dir $@ $(COMPOSER_REQUIRE_OPTS) symfony/polyfill-iconv symfony/polyfill-mbstring hoa/console:^2.15
+ composer update --working-dir $@ $(COMPOSER_UPDATE_OPTS)
+
+build/%/psysh: vendor/bin/box build/%
+ vendor/bin/box compile --working-dir $(dir $@)
+
+
+# Dist packages
+
+dist/psysh-$(VERSION).tar.gz: build/psysh/psysh
+ tar -czf $@ $<
+
+dist/psysh-$(VERSION)-%.tar.gz: build/psysh-%/psysh
+ tar -czf $@ $<