diff --git a/lib/zassert.h b/lib/zassert.h
new file mode 100644
index 0000000..77ebf5d
--- /dev/null
+++ b/lib/zassert.h
@@ -0,0 +1,23 @@
+#ifndef _QUAGGA_ASSERT_H
+#define _QUAGGA_ASSERT_H
+
+extern void _zlog_assert_failed (const char *assertion, const char *file,
+				 unsigned int line, const char *function)
+				 __attribute__ ((noreturn));
+
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+#define __ASSERT_FUNCTION    __func__
+#elif defined(__GNUC__)
+#define __ASSERT_FUNCTION    __FUNCTION__
+#else
+#define __ASSERT_FUNCTION    NULL
+#endif
+
+#define zassert(EX) ((void)((EX) ?  0 :	\
+			    (_zlog_assert_failed(#EX, __FILE__, __LINE__, \
+						 __ASSERT_FUNCTION), 0)))
+
+#undef assert
+#define assert(EX) zassert(EX)
+
+#endif /* _QUAGGA_ASSERT_H */