File e71401a28.patch of Package pointcloud

From 04b9f09300379ad81ec979a883f8eefa8d3774ef Mon Sep 17 00:00:00 2001
From: Christoph Berg <christoph.berg@credativ.de>
Date: Wed, 8 Jan 2020 13:11:00 +0100
Subject: [PATCH] Don't overwrite CXXFLAGS from environment

---
 config.mk.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config.mk.in b/config.mk.in
index b3ff89e9..6e0aa0a6 100644
--- a/config.mk.in
+++ b/config.mk.in
@@ -1,6 +1,6 @@
 CC = @CC@
 CFLAGS = @CFLAGS@
-CXXFLAGS = -fPIC -std=c++0x
+CXXFLAGS += -fPIC -std=c++0x
 SQLPP = @SQLPP@
 
 XML2_CPPFLAGS = @XML2_CPPFLAGS@
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