g++ compiler produces an error on Redhat Linux # 4.8.5-39

[Jonathan Wakely]

Your question is inappropriate on this mailing list, and I already
answered it on the gcc-help list anyway.


On Thu, 28 May 2020 at 18:22, kiran kumar vangara via Gcc
<gcc@gcc.gnu.org> wrote:
>
> 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