[moved from opencv] suppress noisy warning

  * add -Wno-psabi when using GCC 6
  * add -Wundef for CUDA 10
  * add -Wdeprecated-declarations when using GCC 7
  * add -Wstrict-aliasing and -Wtautological-compare for GCC 7
  * replace cudaThreadSynchronize with cudaDeviceSynchronize

original commit: https://github.com/opencv/opencv/commit/40c71a2463f27ec8625cba4823fcb82f8bb77590

modules/cudalegacy/CMakeLists.txt

@@ -4,7 +4,7 @@ endif()
 
 set(the_description "CUDA-accelerated Computer Vision (legacy)")
 
-ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4127 /wd4130 /wd4324 /wd4512 /wd4310 -Wundef -Wmissing-declarations -Wuninitialized -Wshadow)
+ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4127 /wd4130 /wd4324 /wd4512 /wd4310 -Wundef -Wmissing-declarations -Wuninitialized -Wshadow -Wdeprecated-declarations -Wstrict-aliasing -Wtautological-compare)
 
 ocv_define_module(cudalegacy opencv_core opencv_video
   OPTIONAL opencv_objdetect opencv_imgproc opencv_calib3d opencv_cudaarithm opencv_cudafilters opencv_cudaimgproc)

modules/cudaobjdetect/CMakeLists.txt

@@ -4,6 +4,6 @@ endif()
 
 set(the_description "CUDA-accelerated Object Detection")
 
-ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4127 /wd4324 /wd4512 -Wundef -Wmissing-declarations -Wshadow)
+ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4127 /wd4324 /wd4512 -Wundef -Wmissing-declarations -Wshadow -Wstrict-aliasing)
 
 ocv_define_module(cudaobjdetect opencv_objdetect opencv_cudaarithm opencv_cudawarping OPTIONAL opencv_cudalegacy WRAP python)

modules/cudaobjdetect/src/cuda/hog.cu

@@ -448,7 +448,7 @@ namespace cv { namespace cuda { namespace device
            compute_confidence_hists_kernel_many_blocks<nthreads, nblocks><<<grid, threads>>>(
                    img_win_width, img_block_width, win_block_stride_x, win_block_stride_y,
                    block_hists, coefs, free_coef, threshold, confidences);
-           cudaSafeCall(cudaThreadSynchronize());
+           cudaSafeCall(cudaDeviceSynchronize());
        }
 
 

modules/cudaoptflow/CMakeLists.txt

@@ -4,7 +4,7 @@ endif()
 
 set(the_description "CUDA-accelerated Optical Flow")
 
-ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4127 /wd4324 /wd4512 -Wundef -Wmissing-declarations -Wshadow)
+ocv_warnings_disable(CMAKE_CXX_FLAGS /wd4127 /wd4324 /wd4512 -Wundef -Wmissing-declarations -Wshadow -Wstrict-aliasing)
 
 ocv_define_module(cudaoptflow opencv_video opencv_optflow opencv_cudaarithm opencv_cudawarping opencv_cudaimgproc OPTIONAL opencv_cudalegacy WRAP python)