尝试通过Cocoa Pods构建Cocoa Lumberjack/Swift。编译最新标签3.2.0时，DDOSLogger.m中出现错误。以下是一个示例：
.../Pods/CocoaLumberjack/Classes/DDOSLogger.m:68:17: error: static_assert failed "formatters/labels/descriptions must be a constant string"
os_log_debug(OS_LOG_DEFAULT, msg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In module 'os' imported from .../Pods/CocoaLumberjack/Classes/DDOSLogger.m:18:
/Applications/Xcode 8.3.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk/usr/include/os/log.h:271:9: note: expanded from macro 'os_log_debug'
os_log_with_type(log, OS_LOG_TYPE_DEBUG, format, ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode 8.3.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk/usr/include/os/log.h:175:9: note: expanded from macro 'os_log_with_type'
OS_LOG_CALL_WITH_FORMAT(_os_log_impl, \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In module 'os' imported from .../Pods/CocoaLumberjack/Classes/DDOSLogger.m:18:
/Applications/Xcode 8.3.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk/usr/include/os/trace_base.h:59:28: note: expanded from macro 'OS_LOG_CALL_WITH_FORMAT'
OS_LOG_PRAGMA_PUSH OS_LOG_STRING(LOG, _os_fmt_str, fmt); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode 8.3.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk/usr/include/os/trace_base.h:50:9: note: expanded from macro 'OS_LOG_STRING'
_Static_assert(__builtin_constant_p(_str), \
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~
.../Pods/CocoaLumberjack/Classes/DDOSLogger.m:68:17: error: array initializer must be an initializer list or string literal
In module 'os' imported from .../Pods/CocoaLumberjack/Classes/DDOSLogger.m:18:
/Applications/Xcode 8.3.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk/usr/include/os/log.h:271:9: note: expanded from macro 'os_log_debug'
os_log_with_type(log, OS_LOG_TYPE_DEBUG, format, ##__VA_ARGS__)
^
/Applications/Xcode 8.3.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk/usr/include/os/log.h:175:9: note: expanded from macro 'os_log_with_type'
OS_LOG_CALL_WITH_FORMAT(_os_log_impl, \
^
In module 'os' imported from .../Pods/CocoaLumberjack/Classes/DDOSLogger.m:18:
/Applications/Xcode 8.3.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk/usr/include/os/trace_base.h:59:47: note: expanded from macro 'OS_LOG_CALL_WITH_FORMAT'
OS_LOG_PRAGMA_PUSH OS_LOG_STRING(LOG, _os_fmt_str, fmt); \
^
.../Pods/CocoaLumberjack/Classes/DDOSLogger.m:68:46: error: os_log() format argument is not a string constant
os_log_debug(OS_LOG_DEFAULT, msg);
^~~
In module 'os' imported from .../Pods/CocoaLumberjack/Classes/DDOSLogger.m:18:
/Applications/Xcode 8.3.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk/usr/include/os/log.h:271:50: note: expanded from macro 'os_log_debug'
os_log_with_type(log, OS_LOG_TYPE_DEBUG, format, ##__VA_ARGS__)
^~~~~~
/Applications/Xcode 8.3.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk/usr/include/os/log.h:176:55: note: expanded from macro 'os_log_with_type'
(&__dso_handle, _log_tmp, _type_tmp), format, ##__VA_ARGS__); \
^~~~~~
In module 'os' imported from .../Pods/CocoaLumberjack/Classes/DDOSLogger.m:18:
/Applications/Xcode 8.3.2.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk/usr/include/os/trace_base.h:60:65: note: expanded from macro 'OS_LOG_CALL_WITH_FORMAT'
uint8_t _os_fmt_buf[__builtin_os_log_format_buffer_size(fmt, ##__VA_ARGS__)]; \
^~~
我已更新cocoa pods，并在最新的Xcode 8.3.1上尝试过，清理了所有内容等等，但都没有成功。让我惊讶的是，我找不到任何关于这个问题的讨论...显然我没有收到信息，因为其他人要么已经解决了这个问题，要么正在使用较旧的标签。 使用标签3.1.0可以正常工作，我相信除了其他功能外，它不包括DDOSLogger。