diff --git a/Python/strtod.c b/Python/strtod.c
new file mode 100644
index 00000000000..106ec6e1363
--- /dev/null
+++ b/Python/strtod.c
@@ -0,0 +1,17 @@
+/* This is not a proper strtod() implementation, but sufficient for Python.
+   Python won't detect floating point constant overflow, though. */
+
+#include <string.h>
+
+extern double atof();
+
+/*ARGSUSED*/
+double
+strtod(p, pp)
+	char *p;
+	char **pp;
+{
+	if (pp)
+		*pp = strchr(p, '\0');
+	return atof(p);
+}