如何修复 C++ 链接错误：undefined reference to symbol 'crc32'

问题：

尝试编译 C++ 程序时，在链接阶段，你看到类似这样的错误消息

error.txt

/bin/ld: minio-cpp/src/utils.o: undefined reference to symbol 'crc32'
/bin/ld: /lib/x86_64-linux-gnu/libz.so.1: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

/bin/ld: minio-cpp/src/utils.o: undefined reference to symbol 'crc32'
/bin/ld: /lib/x86_64-linux-gnu/libz.so.1: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

解决方案

crc32 符号在 zlib 中定义。因此，你需要通过添加来链接 zlib

linker_flags.txt

-lz

-lz

到你的链接器标志。如果你不知道链接器标志在哪里，尝试直接添加到编译器标志。

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