ogles_gpgpu compile error about acf HOT 3 CLOSED

You need to use a C++11 compiler. I believe 4.8 implements most of C++11, but you need to specify a toolchain in order to enable that with -std=c++11

https://stackoverflow.com/a/29984837

I think that will work. In general it will be better to use g++-5, which is tested in the CI config. Here are two examples of gcc w/ C++11 toolchains that should work:

• https://github.com/ruslo/polly/blob/master/gcc-5.cmake SEE CXX11 FLAGS
• https://github.com/ruslo/polly/blob/master/gcc-4-8-c11.cmake SEE CXX11 FLAG

from acf.

Thank you for your support!!!

Actually I compiled with gcc-4-8-c11 compiler right after post this issue, but there's some build issues.
It fails at building libprotobuf, error log is like following:

[ 21%] Built target libprotobuf
make[4]: Leaving directory ~/.hunter/_Base/e7fe3f0/596fe5f/a0274a8/Build/OpenCV/Build/OpenCV-Release-prefix/src/OpenCV-Release-build' make[3]: *** [all] Error 2 make[3]: Leaving directory /.hunter/_Base/e7fe3f0/596fe5f/a0274a8/Build/OpenCV/Build/OpenCV-Release-prefix/src/OpenCV-Release-build'
make[2]: Leaving directory ~/.hunter/_Base/e7fe3f0/596fe5f/a0274a8/Build/OpenCV/Build' make[1]: Leaving directory /.hunter/_Base/e7fe3f0/596fe5f/a0274a8/Build/OpenCV/Build'
make[2]: *** [OpenCV-Release-prefix/src/OpenCV-Release-stamp/OpenCV-Release-build] Error 2
make[1]: *** [CMakeFiles/OpenCV-Release.dir/all] Error 2
make: *** [all] Error 2

[hunter ** FATAL ERROR **] Build step failed (dir: /.hunter/_Base/e7fe3f0/596fe5f/a0274a8/Build/OpenCV
[hunter ** FATAL ERROR **] [Directory:/.hunter/_Base/Download/Hunter/0.22.8/e7fe3f0/Unpacked/cmake/projects/OpenCV]

(Home directory is mannually edited as ~)
When I use g++-5 compiler, it success without any compile issue.
Thanks a lot!

from acf.

👍

The opencv protobuf dependency fails on several not-quite-latest compilers for some reason. It isn't required for acf and another fix would be just to exclude it from the OpenCV dependency list in the LOCAL config, although g++-5 is probably a better/easier fix.

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