diff --git a/Mac/mwerks/mwerks_nonshared_config.h b/Mac/mwerks/mwerks_nonshared_config.h
new file mode 100644
index 00000000000..95ad73b7125
--- /dev/null
+++ b/Mac/mwerks/mwerks_nonshared_config.h
@@ -0,0 +1,2 @@
+#define HAVE_CONFIG_H
+#define USE_STDWIN
diff --git a/Mac/mwerks/mwerks_shared_config.h b/Mac/mwerks/mwerks_shared_config.h
new file mode 100644
index 00000000000..5d9c636148a
--- /dev/null
+++ b/Mac/mwerks/mwerks_shared_config.h
@@ -0,0 +1,4 @@
+#define HAVE_CONFIG_H
+#define USE_STDWIN
+#define USE_MAC_SHARED_LIBRARY
+#define USE_MAC_APPLET_SUPPORT