[Buildroot] [PATCH v3 6/8] package/opencv3: fix CMAKE_CXX_FLAGS

Samuel Martin s.martin49 at gmail.com
Sat Oct 15 09:44:35 UTC 2016


From: Max Filippov <jcmvbkbc at gmail.com>

The commit 4904c4c "package/opencv3: use BR2_TOOLCHAIN_HAS_LIBATOMIC"
overrides CMAKE_CXX_FLAGS with the single -latomic, losing all ABI
CFLAGS that are passed there by default. This breaks build on xtensa
where ABI CFLAGS contain important code generation options.

Append $(TARGET_CXXFLAGS) to CMAKE_CXX_FLAGS along with -latomic.

Fixes:
  http://autobuild.buildroot.net/results/7f1c96abd8fbb5b358a07100ab623316e9bb9dcd
  http://autobuild.buildroot.net/results/e0c93d0f6d1da0d62d4dbba211a275bfe75e9645
  http://autobuild.buildroot.net/results/53e7e4b4b6a7b48b8012799d7507f7594dbf01b2

Signed-off-by: Max Filippov <jcmvbkbc at gmail.com>
---
 package/opencv3/opencv3.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/opencv3/opencv3.mk b/package/opencv3/opencv3.mk
index 2529de9..10660a9 100644
--- a/package/opencv3/opencv3.mk
+++ b/package/opencv3/opencv3.mk
@@ -12,7 +12,7 @@ OPENCV3_LICENSE_FILES = LICENSE
 
 # Uses __atomic_fetch_add_4
 ifeq ($(BR2_TOOLCHAIN_HAS_LIBATOMIC),y)
-OPENCV3_CONF_OPTS += -DCMAKE_CXX_FLAGS="-latomic"
+OPENCV3_CONF_OPTS += -DCMAKE_CXX_FLAGS="$(TARGET_CXXFLAGS) -latomic"
 endif
 
 # OpenCV component options
-- 
2.10.0




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