无法使用 g++ 编译 opencv 程序答案

【问题标题】：Failing to compile opencv program with g++无法使用 g++ 编译 opencv 程序
【发布时间】：2016-03-08 20:16:05
【问题描述】：

有什么想法我在这里做错了吗？

输入：

pi@raspberrypi ~/DisplayImage $ g++ DisplayImage.o -o DisplayImage `pkg-config --cflags opencv` `pkg-config --libs opencv`

输出：

/usr/bin/ld: warning: libopencv_core.so.2.4, needed by /usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libopencv_contrib.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libopencv_imgproc.so.2.4, needed by /usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libopencv_contrib.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libopencv_features2d.so.2.4, needed by /usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libopencv_contrib.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libopencv_calib3d.so.2.4, needed by /usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libopencv_contrib.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libopencv_highgui.so.2.4, needed by /usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libopencv_contrib.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libopencv_ml.so.2.4, needed by /usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libopencv_contrib.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libopencv_video.so.2.4, needed by /usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libopencv_contrib.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libopencv_objdetect.so.2.4, needed by /usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libopencv_contrib.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: /usr/lib/gcc/arm-linux-gnueabihf/4.6/../../../libopencv_core.a(rand.cpp.o): undefined reference to symbol 'pthread_getspecific@@GLIBC_2.4'
//lib/arm-linux-gnueabihf/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: ld returned 1 exit status

【问题讨论】：

您应该检查两个 pkg-config 命令的输出，看看它们是否有意义。

标签： c++ opencv g++ raspberry-pi

【解决方案1】：

如果你正在交叉编译，你可能需要pkg-config-arm-linux-gnueabi阅读类似的帖子也可能对Package opencv was not found in the pkg-config search path有帮助

【讨论】：

【解决方案2】：

This answer 有相反的参数。

pkg-config opencv --libs

【讨论】：