[Log4cplus-devel] Failed to compile with flag "-std=c++11" in projects

[Delian Xu <del...@gm...>]

Hello,

How to make log4cplus work with compile-flag "-std=c++11" ?

It seems that log4cplus can work with c++11, but I failed to try it, please
help to have a look, thanks!


$ g++ -Wall* -std=c++11* main_trader.cpp liblog4cplus.a -lpthread

/tmp/ccrHnjIt.o: In function
`log4cplus::detail::macros_get_logger(log4cplus::Logger&&)':
main_trader.cpp:(.text._ZN9log4cplus6detail17macros_get_loggerEONS_6LoggerE[_ZN9log4cplus6detail17macros_get_loggerEONS_6LoggerE]+0x2a):
*undefined reference to `log4cplus::Logger::Logger(log4cplus::Logger&&)*'
collect2: error: ld returned 1 exit status


I use macros like "LOG4CPLUS_ERROR(Logger::getRoot(), p)" in my code.

I'm using Ubuntu13.04, x64.  with g++ 4.7
$   g++ --version
g++ (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3



----------------------------------------------------------------------------------------------------------------------
I compiled log4cplus myself, with 'default' option or flags.

(In log4cplus-1.1.2-rc3:)  $ cat ./config.log |grep "c++11"

configure:5755: checking CXXFLAGS for gcc -Wc++11-compat
configure:5782: g++ -c -g -O2 -Wall -Wextra -pedantic -Wstrict-aliasing
-Wstrict-overflow -Woverloaded-virtual -Wold-style-cast -Wc++0x-compat
-pedantic -Werror  -Wc++11-compat  -D_GNU_SOURCE=1 conftest.cpp >&5
configure:5796: result: -Wc++11-compat