From 46453c3cdad9575f264a49f003a2a9f2847708c8 Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Fri, 24 Nov 2017 21:42:55 +0000
Subject: Define __STDC_WANT_IEC_60559_TYPES_EXT__ in
 tst-strtod-round-skeleton.c.

The tst-strtod-round-skeleton.c conditionals relating to handling of
_Float64x require associated <float.h> macros, which requires
__STDC_WANT_IEC_60559_TYPES_EXT__ to be defined before <float.h> is
included if _Float64x is supported.  This patch adds the necessary
definition.

Tested for x86_64, including in conjunction with _Float64x support
patches.

	* stdlib/tst-strtod-round-skeleton.c
	(__STDC_WANT_IEC_60559_TYPES_EXT__): Define before including
	headers.
---
 ChangeLog                          | 4 ++++
 stdlib/tst-strtod-round-skeleton.c | 1 +
 2 files changed, 5 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 2a65383f12..be9ed44d83 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2017-11-24  Joseph Myers  <joseph@codesourcery.com>
 
+	* stdlib/tst-strtod-round-skeleton.c
+	(__STDC_WANT_IEC_60559_TYPES_EXT__): Define before including
+	headers.
+
 	* math/gen-tgmath-tests.py (Type.init_types): Pass suffix argument
 	for combinations of long double with _Float64 and _Float64x.
 
diff --git a/stdlib/tst-strtod-round-skeleton.c b/stdlib/tst-strtod-round-skeleton.c
index 763c9ce983..05d8a4c303 100644
--- a/stdlib/tst-strtod-round-skeleton.c
+++ b/stdlib/tst-strtod-round-skeleton.c
@@ -20,6 +20,7 @@
 /* Defining _LIBC_TEST ensures long double math functions are
    declared in the headers.  */
 #define _LIBC_TEST 1
+#define __STDC_WANT_IEC_60559_TYPES_EXT__
 #include <fenv.h>
 #include <float.h>
 #include <math.h>
-- 
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