diff --git a/libc/private/bionic_config.h b/libc/private/bionic_config.h
new file mode 100644
index 0000000..0c9811c
--- /dev/null
+++ b/libc/private/bionic_config.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _BIONIC_CONFIG_H_
+#define _BIONIC_CONFIG_H_
+
+// valloc(3) and pvalloc(3) were removed from POSIX 2004. We do not include them
+// for LP64, but the symbols remain in LP32 for binary compatibility.
+#if !defined(__LP64__)
+#define HAVE_DEPRECATED_MALLOC_FUNCS 1
+#endif
+
+#endif // _BIONIC_CONFIG_H_