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package/opencv3: link with libatomic if needed 

Restore the atomic workaround that was wrongly removed when bumping to
version 3.4.9 in commit f6fb2cae06 as it
seems that opencv3 still needs help to detect atomic library

Fixes:
 - http://autobuild.buildroot.org/results/9162b29725f8d9b891eb74fcb8078f211140a841

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit dd69967123)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2020.08.x
Fabrice Fontaine 2020-10-17 15:46:23 +02:00 committed by Peter Korsgaard
parent af6c670a78
commit ee8023f8d8
1 changed files with 5 additions and 0 deletions
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package/opencv3/opencv3.mk
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@ -13,6 +13,11 @@ OPENCV3_SUPPORTS_IN_SOURCE_BUILD = NO
OPENCV3_CXXFLAGS = $(TARGET_CXXFLAGS)
# Uses __atomic_fetch_add_4
ifeq ($(BR2_TOOLCHAIN_HAS_LIBATOMIC),y)
OPENCV3_CXXFLAGS += -latomic
endif
# Fix c++11 build with missing std::exception_ptr
ifeq ($(BR2_TOOLCHAIN_HAS_GCC_BUG_64735),y)
OPENCV3_CXXFLAGS += -DCV__EXCEPTION_PTR=0