1 files changed, 2 insertions, 7 deletions

diff --git a/gl/m4/assert_h.m4 b/gl/m4/assert_h.m4
index e77524ca..d9433ef7 100644
--- a/gl/m4/assert_h.m4
+++ b/gl/m4/assert_h.m4
@@ -1,6 +1,6 @@
 # assert_h.m4
-# serial 5
-dnl Copyright (C) 2011-2025 Free Software Foundation, Inc.
+# serial 6
+dnl Copyright (C) 2011-2026 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -56,8 +56,6 @@ AC_DEFUN([gl_ASSERT_H],
   dnl The seemingly redundant parentheses are necessary for MSVC 14.
   dnl #undef assert so that programs are not tempted to use it without
   dnl specifically including assert.h.
-  dnl #undef __ASSERT_H__ so that on IRIX, when programs later include
-  dnl <assert.h>, this include actually defines assert.
   dnl Break the #undef_s apart with a comment so that 'configure' does
   dnl not comment them out.
   AH_VERBATIM([zzstatic_assert],
@@ -78,9 +76,6 @@ AC_DEFUN([gl_ASSERT_H],
              && __GNUG__ < 6 && __clang_major__ < 6)))
  #include <assert.h>
  #undef/**/assert
- #ifdef __sgi
-  #undef/**/__ASSERT_H__
- #endif
  /* Solaris 11.4 <assert.h> defines static_assert as a macro with 2 arguments.
     We need it also to be invocable with a single argument.
     Haiku 2022 <assert.h> does not define static_assert at all.  */