From: Daniel Baston <dbaston@gmail.com>
Date: Mon, 30 Nov 2015 01:47:03 +0000 (+0000)
Subject: Prevent gcc from optimizing away minimum bounding circle test fix
X-Git-Tag: 2.3.0beta1~354
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1c2fa14cfeb1a7876b5c47d41b1c846d22a9726b;p=postgis

Prevent gcc from optimizing away minimum bounding circle test fix

git-svn-id: http://svn.osgeo.org/postgis/trunk@14451 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/liblwgeom/cunit/cu_minimum_bounding_circle.c b/liblwgeom/cunit/cu_minimum_bounding_circle.c
index 277fd7bb8..71f98cf83 100644
--- a/liblwgeom/cunit/cu_minimum_bounding_circle.c
+++ b/liblwgeom/cunit/cu_minimum_bounding_circle.c
@@ -30,7 +30,7 @@ static void mbc_test(LWGEOM* g)
 		/* We need to store the distance in a variable before the assert so that 
 		 * it is rounded from its 80-bit representation (on x86) down to 64 bits. 
 		 * */
-		double d = distance2d_pt_pt(result->center, &p);
+		volatile double d = distance2d_pt_pt(result->center, &p);
 
 		CU_ASSERT_TRUE(d <= result->radius);
 	}