meta-openembedded/meta-oe/recipes-graphics/directfb/directfb/0001-gfx-direct-Aboid-usng-VLAs-and-printf-formats.patch

From f43ef44806ffb8e3b35d99070dde9b6cc1714d3d Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Tue, 8 Sep 2015 21:32:20 +0000
Subject: [PATCH] gfx,direct: Aboid usng VLAs and printf formats

VLAs are flagged by clang when using non-POD types, therefore replace
the usage with alloca which is exact same allocation on stack

 __attribute__((__format__ (__printf__))) is not portable as used here
 therefore disable the check for clang here, we lose no functionality

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
Upstream-Status: Pending

 lib/direct/util.h | 2 +-
 src/gfx/util.cpp  | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/direct/util.h b/lib/direct/util.h
index 72941e9..8e7fa4a 100644
--- a/lib/direct/util.h
+++ b/lib/direct/util.h
@@ -98,7 +98,7 @@
 #define D_CONST_FUNC
 #endif
 
-#if __GNUC__ >= 3
+#if __GNUC__ >= 3 && !defined __clang__
 #define D_FORMAT_PRINTF(n)         __attribute__((__format__ (__printf__, n, n+1)))
 #define D_FORMAT_VPRINTF(n)        __attribute__((__format__ (__printf__, n, 0)))
 #else
diff --git a/src/gfx/util.cpp b/src/gfx/util.cpp
index 40032bc..d1015d4 100644
--- a/src/gfx/util.cpp
+++ b/src/gfx/util.cpp
@@ -294,8 +294,8 @@ dfb_gfx_copy_regions_stereo( CoreSurface           *source,
 {
      unsigned int i, n = 0;
      DFBRectangle rect = { 0, 0, source->config.size.w, source->config.size.h };
-     DFBRectangle rects[num];
-     DFBPoint     points[num];
+     DFBRectangle *rects =  (DFBRectangle*)alloca( sizeof(struct DFBRectangle) * num);
+     DFBPoint *points =  (DFBPoint*)alloca( sizeof(struct DFBPoint) * num);
 
      for (i=0; i<num; i++) {
           DFB_REGION_ASSERT( &regions[i] );
@@ -351,8 +351,8 @@ dfb_gfx_copy_regions_client( CoreSurface             *source,
 {
      unsigned int             i, n = 0;
      DFBRectangle             rect = { 0, 0, source->config.size.w, source->config.size.h };
-     DFBRectangle             rects[num];
-     DFBPoint                 points[num];
+     DFBRectangle            *rects =  (DFBRectangle*)alloca( sizeof(struct DFBRectangle) * num);
+     DFBPoint                *points =  (DFBPoint*)alloca( sizeof(struct DFBPoint) * num);
      CoreGraphicsStateClient *client = _client ? _client : &StateClient::Get()->client;
      CardState               *state  = client->state;
      CardState                backup;
-- 
2.5.1