Team, We have been compiling cpp files with g++ compiler on Redhat Linux OS machine and as part of this -mt option was given for g++ and it produced required binary in case # 1 but produced an error in case#2 , I'm sharing g++ version and the Redhat Linux OS version being used to compile the cpp code details below .. Can you please let us know what is the meaning of flag -mt and why it works in case#1 but not in case#2 Case#1 ---------- g++ (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23) Case# 2 ------------ g++ (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39) In this case the error produced by compiler is g++: error: unrecognized command line option -mt your help will be greatly appreciated . Thanks, Kiran
