Now there is a problem when i want to compile a project which needs to ld liblog4cplus.a
When i use the compile option -std=c++11 ,then there's an error
Undefined reference to 'log4cplus::Logger::operator=(log4cplus::Logger&&)'
but whole project needs the option -std=c++11
So how can i solve this problem?
PS : Compiled on Ubuntu 12.04 ,which gcc version:4.8.2 and liblog4cplus version:1.1.3
You have to compile both your code and log4cplus library with or without the -std=c++11 flag. Mixed compilations are not supported.
log4cplus::Logger g_piano_logger;
auto logger = log4cplus::Logger::getInstance(...
g_logger = logger;
note LOG4CPLUS_HAVE_RVALUE_REFS in log4cplus-1.1.1/include/log4cplus/logger.h
Logger& operator=(const Logger& rhs);
#if defined (LOG4CPLUS_HAVE_RVALUE_REFS)
Logger (Logger && rhs);
Logger & operator = (Logger && rhs);
#endif
