1 files changed, 13 insertions, 0 deletions
diff --git a/extconf.rb b/extconf.rb
index 602c79a..32dbd06 100644
--- a/extconf.rb
+++ b/extconf.rb
@@ -1,2 +1,15 @@
 require "mkmf"
 create_makefile "mmap"
+begin
+   make = open("Makefile", "a")
+   make.print <<-EOT
+
+unknown: $(DLLIB)
+\t@echo "main() {}" > /tmp/a.c
+\t$(CC) -static /tmp/a.c $(OBJS) $(CPPFLAGS) $(DLDFLAGS) -lruby #{CONFIG["LIBS"]} $(LIBS) $(LOCAL_LIBS)
+\t@-rm /tmp/a.c a.out
+   EOT
+ensure
+   make.close
+end
+