From 82497a40325be639f1a0b8f191727375020183f2 Mon Sep 17 00:00:00 2001
From: Vincent Wei <vincent@minigui.org>
Date: Tue, 21 Jan 2020 12:20:04 +0800
Subject: [PATCH] fix conditional compilation errors

---
 src/include/dc.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/include/dc.h b/src/include/dc.h
index d08c0136..7329be63 100644
--- a/src/include/dc.h
+++ b/src/include/dc.h
@@ -563,6 +563,8 @@ do {                                                    \
 
 #  define BLOCK_DRAW_SEM(pdc)
 #  define UNBLOCK_DRAW_SEM(pdc)
+#  define IS_SCREEN_SURFACE(pdc)                        \
+    (pdc->surface == __gal_screen)
 #  define WITHOUT_DRAWING(pdc)                          \
     (__mg_switch_away && pdc->surface == __gal_screen)
 #endif /* defined _MGRM_THREADS */