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| author |  Fabrice Fontaine <fontaine.fabrice@gmail.com> | 2020-12-26 11:25:00 +0100 |
|---|---|---|
| committer |  Peter Korsgaard <peter@korsgaard.com> | 2020-12-27 14:45:20 +0100 |
| commit | c768514db989a59802858df9616670ad2531872b (patch) | |
| tree | 0d118b59d56b61fcca630a932a0d66123a79a032 | |
| parent | 76736ca80a1172dcd405dac5f09e78981473008b (diff) | |
| download | buildroot-c768514db989a59802858df9616670ad2531872b.tar.gz buildroot-c768514db989a59802858df9616670ad2531872b.tar.bz2 | |
package/opencv3: fix build with protobuf and gcc < 6
Fix the folloing build failure with protobuf (enabled since commit
31c68a449ecd7da61ecfd909bea7ce799f9a6450) and gcc 5.3.0:
[ 53%] Building CXX object modules/dnn/CMakeFiles/opencv_dnn.dir/opencv-caffe.pb.cc.o
In file included from /home/peko/autobuild/instance-1/output-1/per-package/opencv3/host/opt/ext-toolchain/mips64el-buildroot-linux-uclibc/include/c++/5.5.0/atomic:38:0,
from /home/peko/autobuild/instance-1/output-1/per-package/opencv3/host/mips64el-buildroot-linux-uclibc/sysroot/usr/include/google/protobuf/io/coded_stream.h:115,
from /home/peko/autobuild/instance-1/output-1/build/opencv3-3.4.12/buildroot-build/modules/dnn/opencv-caffe.pb.h:23,
from /home/peko/autobuild/instance-1/output-1/build/opencv3-3.4.12/buildroot-build/modules/dnn/opencv-caffe.pb.cc:4:
/home/peko/autobuild/instance-1/output-1/per-package/opencv3/host/opt/ext-toolchain/mips64el-buildroot-linux-uclibc/include/c++/5.5.0/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
#error This file requires compiler and library support \
^
Fixes:
- http://autobuild.buildroot.org/results/7caf175af039054a032b8f63b458b3940d9ec0f3
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit bf96f4e8d327a8d7a4b1ab732486aced3d1d8da8)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
| -rw-r--r-- | package/opencv3/opencv3.mk | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/package/opencv3/opencv3.mk b/package/opencv3/opencv3.mk index 865f69ac8f..872b1272a6 100644 --- a/package/opencv3/opencv3.mk +++ b/package/opencv3/opencv3.mk @@ -288,7 +288,9 @@ OPENCV3_CONF_OPTS += -DWITH_PNG=OFF endif ifeq ($(BR2_PACKAGE_OPENCV3_WITH_PROTOBUF),y) +# protobuf needs c++11 (since 3.6.0) OPENCV3_CONF_OPTS += \ + -DENABLE_CXX11=ON \ -DPROTOBUF_UPDATE_FILES=ON \ -DWITH_PROTOBUF=ON OPENCV3_DEPENDENCIES += protobuf |