diff --git a/include/assert.h b/include/assert.h
index 6c3729cd640d..00b3cca48ec9 100644
--- a/include/assert.h
+++ b/include/assert.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: assert.h,v 1.25 2020/04/17 15:22:34 kamil Exp $	*/
+/*	$NetBSD: assert.h,v 1.26 2023/09/12 22:08:24 rillig Exp $	*/
 
 /*-
  * Copyright (c) 1992, 1993
@@ -48,11 +48,7 @@
 #undef assert
 
 #ifdef NDEBUG
-# ifndef __lint__
-#  define assert(e)	(__static_cast(void,0))
-# else /* !__lint__ */
-#  define assert(e)
-# endif /* __lint__ */
+# define assert(e)	(__static_cast(void,0))
 #else /* !NDEBUG */
 # if __STDC__
 #  define assert(e)							\
@@ -67,11 +63,7 @@
 
 #undef _DIAGASSERT
 #if !defined(_DIAGNOSTIC)
-# if !defined(__lint__)
-#  define _DIAGASSERT(e) (__static_cast(void,0))
-# else /* !__lint__ */
-#  define _DIAGASSERT(e)
-# endif /* __lint__ */
+# define _DIAGASSERT(e) (__static_cast(void,0))
 #else /* _DIAGNOSTIC */
 # if __STDC__
 #  define _DIAGASSERT(e)						\
@@ -85,9 +77,7 @@
 #endif /* _DIAGNOSTIC */
 
 
-#if defined(__lint__)
-#define	__assert_function__	(__static_cast(const void *,0))
-#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
 #define	__assert_function__	__func__
 #elif __GNUC_PREREQ__(2, 6)
 #define	__assert_function__	__PRETTY_FUNCTION__