ext/wdm/extconf.rb in wdm-0.0.3 vs ext/wdm/extconf.rb in wdm-0.1.0

@@ -1,9 +1,27 @@
 require 'mkmf'
+require 'rbconfig'
 
-if have_library("kernel32") and
+def generate_makefile
+  create_makefile("wdm_ext")
+end
+
+def generate_dummy_makefile
+  File.open("Makefile", "w") do |f|
+    f.puts dummy_makefile('wdm_ext').join
+  end
+end
+
+def windows?
+  RbConfig::CONFIG['host_os'] =~ /mswin|mingw|cygwin/
+end
+
+if windows? and
+   have_library("kernel32") and
    have_header("windows.h") and
    have_header("ruby.h")    and
    have_const('HAVE_RUBY_ENCODING_H')
 then
-    create_makefile("wdm")
+   generate_makefile()
+else
+  generate_dummy_makefile() 
 end