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Diffstat (limited to 'gnulib-m4/isnand.m4')
-rw-r--r--gnulib-m4/isnand.m48
1 files changed, 4 insertions, 4 deletions
diff --git a/gnulib-m4/isnand.m4 b/gnulib-m4/isnand.m4
index 03da55d6..4eadde7c 100644
--- a/gnulib-m4/isnand.m4
+++ b/gnulib-m4/isnand.m4
@@ -1,5 +1,5 @@
-# isnand.m4 serial 11
-dnl Copyright (C) 2007-2018 Free Software Foundation, Inc.
+# isnand.m4 serial 12
+dnl Copyright (C) 2007-2022 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.
@@ -58,7 +58,7 @@ AC_DEFUN([gl_HAVE_ISNAND_IN_LIBM],
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <math.h>
- #if __GNUC__ >= 4
+ #if (__GNUC__ >= 4) || (__clang_major__ >= 4)
# undef isnand
# define isnand(x) __builtin_isnan ((double)(x))
#elif defined isnan
@@ -81,7 +81,7 @@ AC_DEFUN([gl_HAVE_ISNAND_NO_LIBM],
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <math.h>
- #if __GNUC__ >= 4
+ #if (__GNUC__ >= 4) || (__clang_major__ >= 4)
# undef isnand
# define isnand(x) __builtin_isnan ((double)(x))
#else