From 83b48c89718e7b3fc2b180be992446a068f7fdcc Mon Sep 17 00:00:00 2001
From: Gavin Andresen <gavinandresen@gmail.com>
Date: Mon, 13 Jul 2015 14:28:03 -0400
Subject: [PATCH] configure --enable-debug changes

Three changes to how configure --enable-debug behaves:

1. Preserve user-passed CXXFLAGS/CFLAGS
2. Compile with -DDEBUG_LOCKORDER
3. Add -DDEBUG -DDEBUG_LOCKORDER to CPPFLAGS (since they are preprocessor options)
---
 configure.ac | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 8a54c2f76e7..7f90b5f395c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -147,12 +147,13 @@ AC_ARG_ENABLE([debug],
     [enable_debug=no])
 
 if test "x$enable_debug" = xyes; then
+    CPPFLAGS="$CPPFLAGS -DDEBUG -DDEBUG_LOCKORDER"
     if test "x$GCC" = xyes; then
-        CFLAGS="-g3 -O0 -DDEBUG"
+        CFLAGS="$CFLAGS -g3 -O0"
     fi
     
     if test "x$GXX" = xyes; then
-        CXXFLAGS="-g3 -O0 -DDEBUG"
+        CXXFLAGS="$CXXFLAGS -g3 -O0"
     fi
 fi