From ab2b94613d85ba9edc659bd5e930b9ab1ec8e8a9 Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Fri, 10 May 2013 11:35:11 +0000
Subject: Fix tgamma errno setting on domain error (bug 6809).

---
 math/w_tgammaf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'math/w_tgammaf.c')

diff --git a/math/w_tgammaf.c b/math/w_tgammaf.c
index 48141354e2..8bb553e47b 100644
--- a/math/w_tgammaf.c
+++ b/math/w_tgammaf.c
@@ -22,7 +22,8 @@ __tgammaf(float x)
 	int local_signgam;
 	float y = __ieee754_gammaf_r(x,&local_signgam);
 
-	if(__builtin_expect(!__finitef(y), 0) && __finitef(x)
+	if(__builtin_expect(!__finitef(y), 0)
+	   && (__finitef (x) || __isinff (x) < 0)
 	   && _LIB_VERSION != _IEEE_) {
 	  if (x == (float)0.0)
 	    /* tgammaf pole */
-- 
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