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在ubuntu16上面安装了HI3536的交叉编译工具链之后，在编译自己的代码时报如下的错误：
D_FILE_OFFSET_BITS=64 -I../include -g -rdynamic -std=c++11 -o flowdetect_demo ./main.o -lpthread -L../lib -lopencv_highgui -lopencv_imgproc -lopencv_core -lopencv_imgcodecs -lopencv_video -lopencv_videoio -lflowdetect
/opt/hisi-linux/x86-arm/arm-hisiv300-linux/bin/../lib/gcc/arm-hisiv300-linux-uclibcgnueabi/4.8.3/../../../../arm-hisiv300-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_videoio.so, needed by ../lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv300-linux/bin/../lib/gcc/arm-hisiv300-linux-uclibcgnueabi/4.8.3/../../../../arm-hisiv300-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_imgcodecs.so, needed by ../lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv300-linux/bin/../lib/gcc/arm-hisiv300-linux-uclibcgnueabi/4.8.3/../../../../arm-hisiv300-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_imgproc.so, needed by ../lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)
/opt/hisi-linux/x86-arm/arm-hisiv300-linux/bin/../lib/gcc/arm-hisiv300-linux-uclibcgnueabi/4.8.3/../../../../arm-hisiv300-linux-uclibcgnueabi/bin/ld: warning: ../../lib/libopencv_core.so, needed by ../lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)
截图如下：
这是因为电脑的ubuntu16是64位的，而交叉编译工具链是32位的，解决方法是
sudo apt install lib32z1-dev
原文链接: https://www.cnblogs.com/cumtchw/p/13549268.html
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