- 錯誤
usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: ../../lib/libopencv_imgcodecs.so.4.2.0: undefined reference to `png_riffle_palette_neon'
collect2: error: ld returned 1 exit status
make[2]: *** [apps/annotation/CMakeFiles/opencv_annotation.dir/build.make:89:bin/opencv_annotation] 錯誤 1
make[1]: *** [CMakeFiles/Makefile2:3746:apps/annotation/CMakeFiles/opencv_annotation.dir/all] 錯誤 2
- 解決辦法
方法一:無效
進入到3rdparty/libpng,在CMakeLists.txt頂端增加:
set(ENABLE_NEON ON)
方法二:有效
${HOME}/
opencv-3.3.1/3rdparty/libpng/pngpriv.h
/*# if (defined(ARM_NEON) || defined(__ARM_NEON)) && */
if defined(PNG_ARM_NEON) && (defined(ARM_NEON) || defined(__ARM_NEON)) && \
如上所示,把上面的一行注釋掉,增加下面一行。再次make即可。