Add a new definition to build TruffleRuby from source.

nirvdrum · nirvdrum · commit df6415455e6c · 2023-08-16T16:52:48.000-04:00
diff --git a/rubies/truffleruby-head b/rubies/truffleruby-head
@@ -0,0 +1,6 @@
+build_package_jt() {
+    unset JAVA_HOME
+    JT_IMPORTS_DONT_ASK=true ruby tool/jt.rb build --env native --install $PREFIX_PATH
+}
+
+install_git "truffleruby-head" "https://github.com/Shopify/truffleruby.git" "integration" jt
