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-rw-r--r--m4/stdio_h.m45
1 files changed, 4 insertions, 1 deletions
diff --git a/m4/stdio_h.m4 b/m4/stdio_h.m4
index 07569961f8..342b7d1f20 100644
--- a/m4/stdio_h.m4
+++ b/m4/stdio_h.m4
@@ -1,4 +1,4 @@
-# stdio_h.m4 serial 61
+# stdio_h.m4 serial 62
dnl Copyright (C) 2007-2023 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -40,6 +40,9 @@ AC_DEFUN_ONCE([gl_STDIO_H],
attribute "__gnu_printf__" instead of "__printf__"])
fi
+ dnl For defining _PRINTF_NAN_LEN_MAX.
+ gl_MUSL_LIBC
+
dnl This ifdef is an optimization, to avoid performing a configure check whose
dnl result is not used. But it does not make the test of
dnl GNULIB_STDIO_H_NONBLOCKING or GNULIB_NONBLOCKING redundant.