From de3300ed89e036516349bd532d305ca2879ed33f Mon Sep 17 00:00:00 2001
From: Michael Jumper <mjumper@apache.org>
Date: Mon, 13 Jan 2020 18:17:32 -0800
Subject: [PATCH] GUACAMOLE-249: Preserve CPPFLAGS such that modifications
 needed for FreeRDP tests affect only FreeRDP tests.

---
 configure.ac | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/configure.ac b/configure.ac
index ef8f6619..cdd75666 100644
--- a/configure.ac
+++ b/configure.ac
@@ -538,6 +538,10 @@ AC_ARG_WITH([rdp],
             [],
             [with_rdp=check])
 
+# Preserve CPPFLAGS so it can be restored later, following the addition of
+# options specific to FreeRDP tests
+OLDCPPFLAGS="$CPPFLAGS"
+
 if test "x$with_rdp" != "xno"
 then
     have_freerdp2=yes
@@ -657,6 +661,9 @@ then
 
 fi
 
+# Restore CPPFLAGS, removing FreeRDP-specific options needed for testing
+CPPFLAGS="$OLDCPPFLAGS"
+
 AM_CONDITIONAL([ENABLE_RDP], [test "x${have_freerdp2}" = "xyes"])
 
 #