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package/opencv3: link with libatomic if needed

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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>
This commit is contained in:
Fabrice Fontaine 2020-10-17 15:46:23 +02:00 committed by Yann E. MORIN
parent a2f88b45de
commit dd69967123
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