From c354effe97be26638618e3bc0da81a3f8b384b20 Mon Sep 17 00:00:00 2001
From: Jesse Hall <jessehall@google.com>
Date: Fri, 25 Oct 2013 10:44:41 -0700
Subject: [PATCH] Fix handling of undefined
 TARGET_FORCE_HWC_FOR_VIRTUAL_DISPLAYS

related to b/8316155 - Implement HWComposer 1.3 w/ virtual display support
Change-Id: I2dc8d65a74174aa833cc491264f97f1f2df49307
---
 services/surfaceflinger/Android.mk                          | 6 ++----
 .../DisplayHardware/VirtualDisplaySurface.cpp               | 6 +++++-
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index 1a8f24375..b2bc550c9 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -51,10 +51,8 @@ ifeq ($(TARGET_DISABLE_TRIPLE_BUFFERING),true)
 	LOCAL_CFLAGS += -DTARGET_DISABLE_TRIPLE_BUFFERING
 endif
 
-ifneq ($(TARGET_FORCE_HWC_FOR_VIRTUAL_DISPLAYS),)
-    LOCAL_CFLAGS += -DFORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS=false
-else
-    LOCAL_CFLAGS += -DFORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS=true
+ifeq ($(TARGET_FORCE_HWC_FOR_VIRTUAL_DISPLAYS),true)
+    LOCAL_CFLAGS += -DFORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS
 endif
 
 ifneq ($(NUM_FRAMEBUFFER_SURFACE_BUFFERS),)
diff --git a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
index 0d6cbb4c9..bbe8d68a7 100644
--- a/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/VirtualDisplaySurface.cpp
@@ -22,7 +22,11 @@
 namespace android {
 // ---------------------------------------------------------------------------
 
-static bool sForceHwcCopy = FORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS;
+#if defined(FORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS)
+static const bool sForceHwcCopy = true;
+#else
+static const bool sForceHwcCopy = false;
+#endif
 
 #define VDS_LOGE(msg, ...) ALOGE("[%s] "msg, \
         mDisplayName.string(), ##__VA_ARGS__)