gentoo-overlay/www-servers/varnish/files/fix-build-x86.patch

See https://bugs.gentoo.org/show_bug.cgi?id=620952

From 54b5a09f00c027da280361b30d32a4ff309ba3ab Mon Sep 17 00:00:00 2001
From: Poul-Henning Kamp <phk@FreeBSD.org>
Date: Tue, 28 Mar 2017 18:44:12 +0000
Subject: [PATCH] Try to confuse GCC to not doing FP brain-damage.

Fixes #1875 (maybe)
---
 bin/varnishd/mgt/mgt_param_tweak.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bin/varnishd/mgt/mgt_param_tweak.c b/bin/varnishd/mgt/mgt_param_tweak.c
index 12a7a52ef..b26581e2e 100644
--- a/bin/varnishd/mgt/mgt_param_tweak.c
+++ b/bin/varnishd/mgt/mgt_param_tweak.c
@@ -52,7 +52,7 @@ static int
 tweak_generic_double(struct vsb *vsb, volatile double *dest,
     const char *arg, const char *min, const char *max, const char *fmt)
 {
-	double u, minv = 0, maxv = 0;
+	volatile double u, minv = 0, maxv = 0;
 
 	if (arg != NULL) {
 		if (min != NULL) {