我在OpenCv交叉通信过程中遇到了问题（使用OpenWrt，发布了Attitude Adjustment（12.09-rc1），平台为ar71xx）。似乎OpenWRt链接器找不到合适的库...
[ 27%] Built target opencv_ts
Linking CXX executable ../../bin/opencv_perf_core
mips-openwrt-linux-uclibc-g++.bin: warning: environment variable 'STAGING_DIR' not defined
mips-openwrt-linux-uclibc-g++.bin: warning: environment variable 'STAGING_DIR' not defined
/home/pawel/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: skipping incompatible /usr/lib/gcc/i686-linux-gnu/4.8/libstdc++.so when searching for -lstdc++
/home/pawel/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: skipping incompatible /usr/lib/gcc/i686-linux-gnu/4.8/libstdc++.a when searching for -lstdc++
/home/pawel/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: cannot find -lv4l1
/home/pawel/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: cannot find -lavcodec
/home/pawel/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: cannot find -lavformat
/home/pawel/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: cannot find -lavutil
/home/pawel/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: cannot find -lswscale
/home/pawel/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: cannot find -lbz2
/home/pawel/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: cannot find -lz
/home/pawel/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: skipping incompatible /usr/lib/gcc/i686-linux-gnu/4.8/libstdc++.so when searching for -lstdc++
/home/pawel/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: skipping incompatible /usr/lib/gcc/i686-linux-gnu/4.8/libstdc++.a when searching for -lstdc++
collect2: ld returned 1 exit status
make[2]: *** [bin/opencv_perf_core] Błąd 1
make[1]: *** [modules/core/CMakeFiles/opencv_perf_core.dir/all] Błąd 2
make: *** [all] Błąd 2`
我堆放在这里，无法继续前进，因此我正在寻求帮助。我不会使用OpenWRT编译OpenCv，但是当我尝试从此处和此处使用库时
我收到以下错误：
Building target: misp
Invoking: Cross G++ Linker
mips-openwrt-linux-g++ -L/home/prog12/openwrtD/openwrt/opencv_libs/ar71xx-WR703N/debug/ -o "misp" ./src/main.o -lopencv_highgui -lopencv_core -lopencv_imgproc -lopencv_ml -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_objdetect -lopencv_contrib -lopencv_legacy -lopencv_flann
mips-openwrt-linux-uclibc-g++.bin: warning: environment variable 'STAGING_DIR' not defined
mips-openwrt-linux-uclibc-g++.bin: warning: environment variable 'STAGING_DIR' not defined
/home/prog12/openwrtD/openwrt/opencv_libs/ar71xx-WR703N/debug//libopencv_core.a(system.cpp.o): In function `cv::Mutex::Mutex()':
system.cpp:(.text._ZN2cv5MutexC2Ev+0x38): undefined reference to `pthread_spin_init'
system.cpp:(.text._ZN2cv5MutexC2Ev+0x40): undefined reference to `pthread_spin_init'
/home/prog12/openwrtD/openwrt/opencv_libs/ar71xx-WR703N/debug//libopencv_core.a(system.cpp.o): In function `cv::Mutex::~Mutex()':
system.cpp:(.text._ZN2cv5MutexD2Ev+0x78): undefined reference to `pthread_spin_destroy'
system.cpp:(.text._ZN2cv5MutexD2Ev+0x80): undefined reference to `pthread_spin_destroy'
/home/prog12/openwrtD/openwrt/opencv_libs/ar71xx-WR703N/debug//libopencv_core.a(system.cpp.o): In function `cv::Mutex::operator=(cv::Mutex const&)':
system.cpp:(.text._ZN2cv5MutexaSERKS0_+0xa4): undefined reference to `pthread_spin_destroy'
system.cpp:(.text._ZN2cv5MutexaSERKS0_+0xac): undefined reference to `pthread_spin_destroy'
有没有人可以帮助我？
编辑：
还面临将zlib（thx添加到old-ufo）的问题。
Building target: misp
Invoking: Cross G++ Linker
mips-openwrt-linux-g++ -L/home/prog12/openwrtD/openwrt/opencv_libs/ar71xx-WR703N/debug/ -o "misp" ./src/main.o -lpthread -lzlib -lopencv_highgui -lopencv_core -lopencv_imgproc -lopencv_ml -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_objdetect -lopencv_contrib -lopencv_legacy -lopencv_flann
mips-openwrt-linux-uclibc-g++.bin: warning: environment variable 'STAGING_DIR' not defined
mips-openwrt-linux-uclibc-g++.bin: warning: environment variable 'STAGING_DIR' not defined
/home/prog12/openwrt/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/../lib/gcc/mips-openwrt-linux-uclibc/4.6.3/../../../../mips-openwrt-linux-uclibc/bin/ld: cannot find -lzlib
这是链接问题-您必须指定所有使用过的函数的库。在这种情况下-还与-lzlib-lpthread选项链接。
对于所有类似的问题-出现错误的google函数，并找到它所属的库。然后链接到它。
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我来说两句