For information like this you will be better off going to Apple's developer forums. The people on these boards are mostly consumers just trying to use their Macs and other Apple devices. You will need to sign up as a developer to do so. Note the link at the bottom of the page which allows you to sign up for free.
Best of luck.
Thank for the answer
but unfurtunaly I can´t sign in to the developer Forum don´t know why
I suggest that I have to pay $99/year to get access to Forum
Developer Technical Support Incidents are only available to members of the iOS, Mac, and Safari Developer Programs.
for a simple answer I am not ready to pay 99$ that is rip off fraud
Welcome to Apple
NO MONEY get out of here
Hope that someone can help me with my issue how to get the gcc_select or how to change the gcc