Author: Reiner Herrmann <reiner@reiner-h.de>
Description: Honour CPPFLAGS for proper hardening support
Forwarded: https://github.com/xplc/xplc/pull/2

--- a/config/config.mk.in
+++ b/config/config.mk.in
@@ -26,6 +26,7 @@
 CFLAGS+=@CFLAGS@
 CXX=@CXX@
 CXXFLAGS+=@CXXFLAGS@
+CPPFLAGS+=@CPPFLAGS@
 LDFLAGS+=@LDFLAGS@
 pc_version:=@pc_version@
 xplcdir_version:=@xplcdir_version@