Hello,
We try to compile log4cxx 0.12.1 on aix, we configure with cmake, and when we try to do the make we have the folowing error : 
[root@detcisedt0005 /home/root/ext/apache-log4cxx-0.12.1/build]> make
--
--
-- log4cxx configuration summary:
--
-- Build shared library ............ : ON
-- Build tests ..................... : ON
-- Build site ...................... : OFF
-- Install prefix .................. : /home/root/ext
-- C++ compiler .................... : /opt/IBM/xlC/16.1.0/bin/xlC_r
-- log4cxx char API ................ : utf-8
-- log4cxx wchar API ............... : ON
-- log4cxx unichar API ............. : OFF
-- logchar type .................... : utf-8
-- charset ......................... : locale
-- Using libESMTP .................. : OFF
-- ODBC library .................... : OFF
-- syslog .......................... : ON
-- Qt support ...................... : OFF
-- shared_mutex implementation ..... : boost::shared_mutex
-- Applications required for tests:
-- zip ............................. : /usr/bin/zip
-- sed ............................. : /usr/bin/sed
-- gzip ............................ : /usr/bin/gzip
-- Configuring done
-- Generating done
-- Build files have been written to: /home/root/ext/apache-log4cxx-0.12.1/build
Checking configuration
Target "src/main/include/CMakeFiles/configure_log4cxx.dir/build" is up to date.
[ 0%] Built target configure_log4cxx
Scanning dependencies of target log4cxx
[ 0%] Building CXX object src/main/cpp/CMakeFiles/log4cxx.dir/action.cpp.o
1540-5200 (W) The option "langlvl=extended1y" is not supported.
"/home/root/ext/apache-log4cxx-0.12.1/src/main/cpp/action.cpp", line 19.10: 1540-0836 (S) The #include file <mutex> is not found.
"/home/root/ext/apache-log4cxx-0.12.1/src/main/include/log4cxx/rolling/action.h", line 24.10: 1540-0836 (S) The #include file <mutex> is not found.
make: The error code from the last command is 1.


Stop.
make: The error code from the last command is 2.


Stop.
make: The error code from the last command is 2.


Stop.
I found the mutex file here : 

/opt/IBM/xlC/16.1.0/include2/c++/mutex
but if I try to add this include in CMakeLists.txt with this line : 

include_directories(/opt/IBM/xlC/16.1.0/include2/c++)

I have a lot of more error that begin with : 

[ 0%] Building CXX object src/main/cpp/CMakeFiles/log4cxx.dir/action.cpp.o
1540-5200 (W) The option "langlvl=extended1y" is not supported.
"/opt/IBM/xlC/16.1.0/include2/c++/__config", line 990.25: 1540-0063 (S) The text ""C"" is unexpected.
"/opt/IBM/xlC/16.1.0/include2/c++/__nullptr", line 57.5: 1540-5239 (W) "decltype" is reserved as a keyword. To disable it, use "-qnokeyword=decltype".
"/opt/IBM/xlC/16.1.0/include2/c++/__nullptr", line 57.22: 1540-2935 (S) A C++0x feature is being used. Use the extended0x langlvl or langlvl "Nullptr" to enable this feature.
.....

any idea of the problem and how we can manage to compile this library ?
Regards
Stephane Didierjean