1 files changed, 23 insertions, 0 deletions
diff --git a/include/assert.h b/include/assert.h
new file mode 100644
index 000000000..aef6cdf08
--- /dev/null
+++ b/include/assert.h
@@ -0,0 +1,23 @@
+#ifndef	__ASSERT_H
+#define	__ASSERT_H
+#include <features.h>
+
+/* If NDEBUG is defined, do nothing.
+   If not, and EXPRESSION is zero, print an error message and abort.  */
+
+#ifdef	NDEBUG
+
+#define	assert(expr)		((void) 0)
+
+#else /* Not NDEBUG.  */
+
+extern void __assert __P((const char *, const char *, int));
+
+#define	assert(expr)							      \
+  ((void) ((expr) ||							      \
+	   (__assert (__STRING(expr),				      \
+			   __FILE__, __LINE__), 0)))
+
+#endif /* NDEBUG.  */
+
+#endif /* __ASSERT_H */