1 files changed, 6 insertions, 4 deletions

diff --git a/gl/m4/exponentd.m4 b/gl/m4/exponentd.m4
index 2ef46437..08e93397 100644
--- a/gl/m4/exponentd.m4
+++ b/gl/m4/exponentd.m4
@@ -1,9 +1,11 @@
-# exponentd.m4 serial 3
-dnl Copyright (C) 2007-2008, 2010-2023 Free Software Foundation, Inc.
+# exponentd.m4
+# serial 5
+dnl Copyright (C) 2007-2008, 2010-2025 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.
-AC_DEFUN([gl_DOUBLE_EXPONENT_LOCATION],
+dnl This file is offered as-is, without any warranty.
+AC_DEFUN_ONCE([gl_DOUBLE_EXPONENT_LOCATION],
 [
   AC_CACHE_CHECK([where to find the exponent in a 'double'],
     [gl_cv_cc_double_expbit0],
@@ -83,7 +85,7 @@ int main ()
           dnl The newer VFP instructions assume little-endian order
           dnl consistently.
           AC_EGREP_CPP([mixed_endianness], [
-#if defined arm || defined __arm || defined __arm__
+#if defined __arm__
   mixed_endianness
 #endif
             ],