当我尝试使用以下命令在我的 Linux 机器上获取我的库之一时:

go get -t github.com/bakape/thumbnailer

然后我收到此错误消息:

-# github.com/bakape/thumbnailer /usr/bin/ld: /usr/bin/ld: /usr/local/lib/libGraphicsMagick.a(magick_libGraphicsMagick_la-blob.o): undefined reference to symbol 'gzclose' //lib/x86_64-linux-gnu/libz.so.1: error adding symbols: DSO missing from command line collect2: error: ld returned 1 exit status

遇到这个错误的人说这是一个链接错误，他们通过在 Makefile 中添加一些额外的标签来修复它。我也这样做了，但这对我不起作用。我尝试了很多解决方案，但似乎没有一个对我有用。

我正在使用以下库: https://github.com/bakape/thumbnailer

这是生成文件:

clean:
    rm -f testdata/*_thumb.*

创建者提到了未记录的 zlib 依赖项。所有这些都已安装:

zlib1g is already the newest version (1:1.2.8.dfsg-2ubuntu4.1).
zlib1g-dev is already the newest version (1:1.2.8.dfsg-2ubuntu4.1).

-

ubuntu@root:~$ ls -F -sh /lib/x86_64-linux-gnu/libz.*
   0 /lib/x86_64-linux-gnu/libz.so.1@  104K /lib/x86_64-linux-gnu/libz.so.1.2.8

这是完整的安装过程:

 ubuntu@root:~$ go get -u -v -x github.com/bakape/thumbnailer
    cd /home/ubuntu/go/src/github.com/bakape/thumbnailer
    git config remote.origin.url
    github.com/bakape/thumbnailer (download)
    cd /home/ubuntu/go/src/github.com/bakape/thumbnailer
    git pull --ff-only
    cd /home/ubuntu/go/src/github.com/bakape/thumbnailer
    git submodule update --init --recursive
    cd /home/ubuntu/go/src/github.com/bakape/thumbnailer
    git show-ref
    cd /home/ubuntu/go/src/github.com/bakape/thumbnailer
    git submodule update --init --recursive
    WORK=/tmp/go-build312713059
    github.com/bakape/thumbnailer
    mkdir -p $WORK/github.com/bakape/thumbnailer/_obj/
    mkdir -p $WORK/github.com/bakape/
    cd /home/ubuntu/go/src/github.com/bakape/thumbnailer
    pkg-config --cflags libavcodec libavutil libavformat GraphicsMagick++ libavcodec libavutil libavformat libswscale
    pkg-config --libs libavcodec libavutil libavformat GraphicsMagick++ libavcodec libavutil libavformat libswscale
    CGO_LDFLAGS="-g" "-O2" "-lm" "-L/usr/local/lib" "-lGraphicsMagick++" "-lGraphicsMagick" "-lavcodec" "-lavutil" "-lavformat" "-lswscale" /usr/local/go/pkg/tool/linux_amd64/cgo -objdir $WORK/github.com/bakape/thumbnailer/_obj/ -importpath github.com/bakape/thumbnailer -- -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I $WORK/github.com/bakape/thumbnailer/_obj/ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 audio.go buf.go build_flags_gpl.go ffmpeg.go meta.go thumbnailer.go video.go
    cd $WORK
    gcc -fdebug-prefix-map=a=b -c trivial.c
    gcc -gno-record-gcc-switches -c trivial.c
    cd $WORK/github.com/bakape/thumbnailer/_obj
    gcc -I /home/ubuntu/go/src/github.com/bakape/thumbnailer -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I ./ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o ./_cgo_export.o -c _cgo_export.c
    gcc -I /home/ubuntu/go/src/github.com/bakape/thumbnailer -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I ./ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o ./audio.cgo2.o -c audio.cgo2.c
    gcc -I /home/ubuntu/go/src/github.com/bakape/thumbnailer -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I ./ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o ./buf.cgo2.o -c buf.cgo2.c
    gcc -I /home/ubuntu/go/src/github.com/bakape/thumbnailer -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I ./ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o ./build_flags_gpl.cgo2.o -c build_flags_gpl.cgo2.c
    gcc -I /home/ubuntu/go/src/github.com/bakape/thumbnailer -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I ./ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o ./ffmpeg.cgo2.o -c ffmpeg.cgo2.c
    gcc -I /home/ubuntu/go/src/github.com/bakape/thumbnailer -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I ./ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o ./meta.cgo2.o -c meta.cgo2.c
    gcc -I /home/ubuntu/go/src/github.com/bakape/thumbnailer -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I ./ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o ./thumbnailer.cgo2.o -c thumbnailer.cgo2.c
    gcc -I /home/ubuntu/go/src/github.com/bakape/thumbnailer -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I ./ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o ./video.cgo2.o -c video.cgo2.c
    cd /home/ubuntu/go/src/github.com/bakape/thumbnailer
    gcc -I . -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I $WORK/github.com/bakape/thumbnailer/_obj/ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o $WORK/github.com/bakape/thumbnailer/_obj/audio.o -c audio.c
    gcc -I . -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I $WORK/github.com/bakape/thumbnailer/_obj/ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o $WORK/github.com/bakape/thumbnailer/_obj/ffmpeg.o -c ffmpeg.c
    gcc -I . -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I $WORK/github.com/bakape/thumbnailer/_obj/ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o $WORK/github.com/bakape/thumbnailer/_obj/init.o -c init.c
    gcc -I . -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I $WORK/github.com/bakape/thumbnailer/_obj/ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o $WORK/github.com/bakape/thumbnailer/_obj/meta.o -c meta.c
    gcc -I . -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I $WORK/github.com/bakape/thumbnailer/_obj/ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o $WORK/github.com/bakape/thumbnailer/_obj/video.o -c video.c
    g++ -I . -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I $WORK/github.com/bakape/thumbnailer/_obj/ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/lodepng -std=c++17 -O3 -o $WORK/github.com/bakape/thumbnailer/_obj/compress_png.cc.o -c compress_png.cc
    g++ -I . -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I $WORK/github.com/bakape/thumbnailer/_obj/ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/lodepng -std=c++17 -O3 -o $WORK/github.com/bakape/thumbnailer/_obj/thumbnailer.cc.o -c thumbnailer.cc
    g++ -I . -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I $WORK/github.com/bakape/thumbnailer/_obj/ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/lodepng -std=c++17 -O3 -o $WORK/github.com/bakape/thumbnailer/_obj/util.cc.o -c util.cc
    cd $WORK/github.com/bakape/thumbnailer/_obj
    gcc -I /home/ubuntu/go/src/github.com/bakape/thumbnailer -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -I/usr/local/include/GraphicsMagick -I/usr/include/x86_64-linux-gnu -I ./ -g -O2 -I/home/ubuntu/go/src/github.com/bakape/thumbnailer/libimagequant -std=c11 -std=c11 -O3 -D_POSIX_C_SOURCE -std=c11 -o ./_cgo_main.o -c _cgo_main.c
    cd /home/ubuntu/go/src/github.com/bakape/thumbnailer
    g++ -I . -fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=$WORK=/tmp/go-build -gno-record-gcc-switches -o $WORK/github.com/bakape/thumbnailer/_obj/_cgo_.o $WORK/github.com/bakape/thumbnailer/_obj/_cgo_main.o $WORK/github.com/bakape/thumbnailer/_obj/_cgo_export.o $WORK/github.com/bakape/thumbnailer/_obj/audio.cgo2.o $WORK/github.com/bakape/thumbnailer/_obj/buf.cgo2.o $WORK/github.com/bakape/thumbnailer/_obj/build_flags_gpl.cgo2.o $WORK/github.com/bakape/thumbnailer/_obj/ffmpeg.cgo2.o $WORK/github.com/bakape/thumbnailer/_obj/meta.cgo2.o $WORK/github.com/bakape/thumbnailer/_obj/thumbnailer.cgo2.o $WORK/github.com/bakape/thumbnailer/_obj/video.cgo2.o $WORK/github.com/bakape/thumbnailer/_obj/audio.o $WORK/github.com/bakape/thumbnailer/_obj/ffmpeg.o $WORK/github.com/bakape/thumbnailer/_obj/init.o $WORK/github.com/bakape/thumbnailer/_obj/meta.o $WORK/github.com/bakape/thumbnailer/_obj/video.o $WORK/github.com/bakape/thumbnailer/_obj/compress_png.cc.o $WORK/github.com/bakape/thumbnailer/_obj/thumbnailer.cc.o $WORK/github.com/bakape/thumbnailer/_obj/util.cc.o -g -O2 -lm -L/usr/local/lib -lGraphicsMagick++ -lGraphicsMagick -lavcodec -lavutil -lavformat -lswscale
    # github.com/bakape/thumbnailer
    /usr/bin/ld: /usr/local/lib/libGraphicsMagick.a(magick_libGraphicsMagick_la-blob.o): undefined reference to symbol 'gzclose'
    //lib/x86_64-linux-gnu/libz.so.1: error adding symbols: DSO missing from command line
    collect2: error: ld returned 1 exit status

最佳答案

您构建了一个本地静态 GraphicsMagick，但没有正确配置它。最好的办法是使用以下命令删除当前的 GraphicsMagick:

sudo make uninstall

在 GraphicsMagick 文件夹中。

之后，只需使用以下命令安装 GraphicsMagick:

sudo apt-get install graphicsmagick

所有库链接都将由 Advanced Packaging Tool 自动处理。

关于go - 获取库时对符号 'gzclose' 的 undefined reference 错误 - 去，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/51091789/