在 OSX 10.9 上构建 libzip 时缺少 crc32()

Question

我已经下载了最新版本的 libzip，目前正在尝试在 OSX 上构建它，但失败了：

Linking C shared library libzip.dylib
Undefined symbols for architecture x86_64:
  "_crc32", referenced from:
      __zip_filerange_crc in zip_filerange_crc.o
      _crc_read in zip_source_crc.o
      _decrypt in zip_source_pkware.o
      __zip_string_crc32 in zip_string.o
     (maybe you meant: __zip_string_crc32)
  "_deflate", referenced from:
      _compress_read in zip_source_deflate.o
     (maybe you meant: _zip_source_deflate)
  "_deflateEnd", referenced from:
      _deflate_compress in zip_source_deflate.o
  "_deflateInit2_", referenced from:
      _deflate_compress in zip_source_deflate.o
  "_inflate", referenced from:
      _decompress_read in zip_source_deflate.o
  "_inflateEnd", referenced from:
      _deflate_decompress in zip_source_deflate.o
  "_inflateInit2_", referenced from:
      _deflate_decompress in zip_source_deflate.o
  "_zError", referenced from:
      __zip_error_strerror in zip_error_strerror.o
      _zip_error_to_str in zip_error_to_str.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [libzip.3.0.dylib] Error 1
make[2]: *** [CMakeFiles/zip.dir/all] Error 2
make[1]: *** [CMakeFiles/zip.dir/rule] Error 2
make: *** [zip] Error 2

它需要一个 crc32 函数，但它不包含一个，也似乎没有链接到其他任何东西。有没有人能够在 OSX 10.9 上构建 libzip？

Answer 1

您似乎缺少将 a 链接到 libz。

在某处获取 zlib 的开发人员文件并将-lz 添加到链接命令（命令行的末尾）。