【发布时间】：2019-04-01 00:29:57
【问题描述】：
我正在尝试在最新的 OSX 上构建 C connector for MariaDB，但它似乎因与 SSL 相关的错误而失败。我使用 Macports (/opt/local/lib/openssl) 安装了 SSL，并添加了一个指向它的包含：
find_package(OpenSSL REQUIRED)
target_include_directories(tests PRIVATE ${OPENSSL_INCLUDE_DIR})
但构建它会返回相同的错误：
~/chi/databaseclient/cpp/ninja/mariadb-connector-c-src
⟩ ninja
[81/115] Building C object libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/inflate.c.o
zlib/inflate.c:1475:61: warning: shifting a negative signed value is undefined [-Wshift-negative-value]
if (strm == Z_NULL || strm->state == Z_NULL) return -1L << 16;
~~~ ^
1 warning generated.
[89/115] Linking C shared library libmariadb/libmariadb.3.dylib
FAILED: libmariadb/libmariadb.3.dylib
: && /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -O2 -g -DNDEBUG -DDBUG_OFF -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk -dynamiclib -Wl,-headerpad_max_install_names -compatibility_version 3.0.0 -current_version 3.0.0 -o libmariadb/libmariadb.3.dylib -install_name /Users/ruihpacheco/chi/databaseclient/cpp/ninja/mariadb-connector-c-src/libmariadb/libmariadb.3.dylib libmariadb/CMakeFiles/mariadb_obj.dir/__/plugins/auth/my_auth.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/plugins/auth/old_password.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/plugins/pvio/pvio_socket.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_array.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_charset.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_hash.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_net.c.o libmariadb/CMakeFiles/mariadb_obj.dir/mariadb_charset.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_time.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_default.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_errmsg.c.o libmariadb/CMakeFiles/mariadb_obj.dir/mariadb_lib.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_list.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_pvio.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_tls.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_alloc.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_compress.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_init.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_password.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_ll2str.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_sha1.c.o libmariadb/CMakeFiles/mariadb_obj.dir/mariadb_stmt.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_loaddata.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_stmt_codec.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_string.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_dtoa.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_client_plugin.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_io.c.o libmariadb/CMakeFiles/mariadb_obj.dir/secure/openssl.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/adler32.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/compress.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/crc32.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/deflate.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/gzclose.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/gzlib.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/gzread.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/gzwrite.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/infback.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/inffast.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/inflate.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/inftrees.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/trees.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/uncompr.c.o libmariadb/CMakeFiles/mariadb_obj.dir/__/zlib/zutil.c.o libmariadb/CMakeFiles/mariadb_obj.dir/mariadb_dyncol.c.o libmariadb/CMakeFiles/mariadb_obj.dir/mariadb_async.c.o libmariadb/CMakeFiles/mariadb_obj.dir/ma_context.c.o /usr/lib/libiconv.dylib /usr/lib/libssl.dylib /usr/lib/libcrypto.dylib && :
Undefined symbols for architecture x86_64:
"_X509_check_host", referenced from:
_ma_tls_verify_server_cert in openssl.c.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
[91/115] Building C object unittest/libmariadb/CMakeFiles/ps_bugs.dir/ps_bugs.c.o
ninja: build stopped: subcommand failed.
【问题讨论】：
-
看起来你正在链接系统 ssl: /usr/lib/libssl.dylib 上的链接命令，但听起来你包括一个非系统 ssl 库。所以肯定有可能存在某种不匹配。尝试使用系统 ssl 进行编译和链接，或者使用 brew 安装的，但不要混合使用。
-
这不是我的，是 MariaDB 的。
-
抱歉，措辞不好。 s/你是/它是/
-
关于您添加在链接期间未使用的 macports openSSL 发行版的观点仍然有效。我实际上也不确定它是否被用作包含。取出 macports openssl 的额外包含内容并发布构建错误？
标签： macos mariadb ninja mariadb-connector-c