diff --git a/libguile/gc_os_dep.c b/libguile/gc_os_dep.c
new file mode 100644
index 000000000..df0ce6d63
--- /dev/null
+++ b/libguile/gc_os_dep.c
@@ -0,0 +1,10 @@
+/* This is a dummy file.  It will be replaced with the real thing when
+   all copyright issues have been settled. */
+
+#include <stddef.h>
+
+void *
+scm_get_stack_base ()
+{
+    return NULL;
+}