Cannot compile -mthreads

[emp1953]

Using GCC 3.4.6 on redhat linux
Trying to compile an application using the -mthreads option. G++ throws an error on the Makefile from cc1plus that it doesn't recognize -mthreads.

How does one set the option in the compile side to make the compiler invoke thread safe operations?

Thanks

emp

[Zaita]

Try the GCC mailing list :)

[jsmith]

-DTHREAD_SAFE