crc32() missing when building libzip on OSX 10.9
c, libz, linker-errors, osx-mavericks, undefined-reference
Solution
You seem to be missing to link a against `libz`.
Get the developer files for zlib somewhere and add `-lz` to the (end of the command line of the) link command.
Problem
I've downloaded the latest release of libzip and am currently trying to build it on OSX and failing: ``` 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 ``` It needs a crc32 function but it doesn't include one nor does it seem to link to anything else. Has anyone been able to build libzip on OSX 10.9?