1 files changed, 24 insertions, 0 deletions
diff --git a/gc/mmtk/extconf.rb b/gc/mmtk/extconf.rb
new file mode 100644
index 0000000000..c0e788037e
--- /dev/null
+++ b/gc/mmtk/extconf.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+require_relative "../extconf_base"
+
+# Statically link `libmmtk_ruby.a`
+$LIBS << " $(MMTK_BUILD)/$(LIBMMTK_RUBY)"
+
+rustsrcs = Dir.glob("src/*.rs", base: __dir__).map {|s| "$(srcdir)/#{s}"}
+
+create_gc_makefile("mmtk") do |makefile|
+  [
+    *makefile,
+
+    <<~MAKEFILE,
+    MMTK_BUILD = debug
+    LIBMMTK_RUBY = libmmtk_ruby.#$LIBEXT
+    RUSTSRCS = #{rustsrcs.join(" \\\n\t   ")}
+
+    ifeq ($(MMTK_BUILD), debug)
+    CPPFLAGS += -DMMTK_DEBUG
+    endif
+    MAKEFILE
+  ]
+end