From: Sandro Santilli <strk@keybit.net>
Date: Fri, 4 Nov 2011 08:15:53 +0000 (+0000)
Subject: Fix builds againts GEOS < 3.3
X-Git-Tag: 2.0.0alpha1~771
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=174a4e7ac58adb039d756a4611f0e9edcbb42e62;p=postgis

Fix builds againts GEOS < 3.3

git-svn-id: http://svn.osgeo.org/postgis/trunk@8089 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/liblwgeom/lwgeom_geos_node.c b/liblwgeom/lwgeom_geos_node.c
index 594d6b0d5..02ac299af 100644
--- a/liblwgeom/lwgeom_geos_node.c
+++ b/liblwgeom/lwgeom_geos_node.c
@@ -85,6 +85,13 @@ lwgeom_extract_endpoints(const LWGEOM* lwg)
 static LWGEOM*
 lwgeom_extract_unique_endpoints(const LWGEOM* lwg)
 {
+#if POSTGIS_GEOS_VERSION < 33
+	lwerror("The GEOS version this postgis binary "
+	        "was compiled against (%d) doesn't support "
+	        "'GEOSUnaryUnion' function (3.3.0+ required)",
+	        POSTGIS_GEOS_VERSION);
+	return NULL;
+#else /* POSTGIS_GEOS_VERSION >= 33 */
 	LWGEOM* ret;
 	GEOSGeometry *gepu;
 	LWMPOINT *epall = lwgeom_extract_endpoints(lwg);
@@ -114,6 +121,7 @@ lwgeom_extract_unique_endpoints(const LWGEOM* lwg)
 	}
 
 	return ret;
+#endif /* POSTGIS_GEOS_VERSION >= 33 */
 }
 
 /* exported */