1 files changed, 4 insertions, 6 deletions

diff --git a/gl/m4/byteswap.m4 b/gl/m4/byteswap.m4
index 1083b4c..99aeb68 100644
--- a/gl/m4/byteswap.m4
+++ b/gl/m4/byteswap.m4
@@ -1,5 +1,5 @@
-# byteswap.m4 serial 4
-dnl Copyright (C) 2005, 2007, 2009-2021 Free Software Foundation, Inc.
+# byteswap.m4 serial 5
+dnl Copyright (C) 2005, 2007, 2009-2022 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.
@@ -10,10 +10,8 @@ AC_DEFUN([gl_BYTESWAP],
 [
   dnl Prerequisites of lib/byteswap.in.h.
   AC_CHECK_HEADERS([byteswap.h], [
-    BYTESWAP_H=''
+    GL_GENERATE_BYTESWAP_H=false
   ], [
-    BYTESWAP_H='byteswap.h'
+    GL_GENERATE_BYTESWAP_H=true
   ])
-  AC_SUBST([BYTESWAP_H])
-  AM_CONDITIONAL([GL_GENERATE_BYTESWAP_H], [test -n "$BYTESWAP_H"])
 ])