From 87040137a38012e9ae680098fc5facda0ea0fcf3 Mon Sep 17 00:00:00 2001 From: Fabrice Fontaine Date: Fri, 31 May 2019 18:26:45 +0200 Subject: [PATCH] package/opencv3: fix build due to gcc bug 68485 With Microblaze Gcc version <= 9.x the build fails due to gcc bug 68485: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68485. The bug show up when building opencv3 with optimization but not when building with -O0. To work around this, if BR2_TOOLCHAIN_HAS_GCC_BUG_68458=y, we force using -O0. Fixes: - http://autobuild.buildroot.org/results/c78eac84d1c5a6702e7759cd5364da1c3e399b4b Signed-off-by: Fabrice Fontaine Reviewed-by: Giulio Benetti Signed-off-by: Thomas Petazzoni --- package/opencv3/opencv3.mk | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/package/opencv3/opencv3.mk b/package/opencv3/opencv3.mk index 292ce81432..49b29d9f1e 100644 --- a/package/opencv3/opencv3.mk +++ b/package/opencv3/opencv3.mk @@ -23,6 +23,10 @@ ifeq ($(BR2_TOOLCHAIN_HAS_GCC_BUG_64735),y) OPENCV3_CXXFLAGS += -DCV__EXCEPTION_PTR=0 endif +ifeq ($(BR2_TOOLCHAIN_HAS_GCC_BUG_68485),y) +OPENCV3_CXXFLAGS += -O0 +endif + # OpenCV component options OPENCV3_CONF_OPTS += \ -DCMAKE_CXX_FLAGS="$(OPENCV3_CXXFLAGS)" \ -- 2.30.2