From 3917c8a6929702be52a9239aa93958e53484bc74 Mon Sep 17 00:00:00 2001
From: Didier Raboud <odyx@debian.org>
Date: Fri, 9 Feb 2018 17:46:08 +0100
Subject: Inheritate CXXFLAGS from the environment, to use dpkg-buildflags'

Last-Update: 2014-01-09
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 6f8e05e..4e6365c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -89,7 +89,7 @@ AC_SUBST(cups_cflags)
 warning_flags="-Wall -Wno-unknown-pragmas"
 debug_flags=""
 optimization_flags="-O2"
-CXXFLAGS="${optimization_flags} ${warning_flags} ${debug_flags} ${cups_cflags}"
+CXXFLAGS+=" ${optimization_flags} ${warning_flags} ${debug_flags} ${cups_cflags}"
 
 
 AC_CHECK_LIB(cups, cupsMarkOptions, , AC_ERROR([Can't find cups library]))