Make sure this passes Travis CI test before merging.
This is to get rid of warnings such as the following:
source/shared_lib/CMakeFiles/libmegaglest.dir/sources/feathery_ftp/ftpServer.c.o
[ 31%] Building C object
source/shared_lib/CMakeFiles/libmegaglest.dir/sources/feathery_ftp/ftpSession.c.o
cc1: warning: command line option '-std=gnu++11' is valid for C++/ObjC++
but not for C
cc1: warning: command line option '-std=gnu++11' is valid for C++/ObjC++
but not for C
[ 31%] Building C object
source/shared_lib/CMakeFiles/libmegaglest.dir/sources/feathery_ftp/ftpTargetPosix.c.o
cc1: warning: command line option '-std=gnu++11' is valid for C++/ObjC++
but not for C```
Make sure this passes Travis CI test before merging.
This is to get rid of warnings such as the following: