upgrading gcc

[Rainer Müller]

Alejandro Aragon wrote:
> Hi,
> 
> I saw there is an upgrade to GCC. I saw that in order to uninstall the  
> old version I have to use the -u option to the upgrade command. Now,  
> the ideal thing would be of course to upgrade it and if the upgraded  
> version works, to uninstall the old version. Is this something that  
> can be done after upgrading? I'm concerned about not using the -u  
> option and then having both the upgraded and the outdated versions of  
> the same compiler in the system. Thank you all,

You can have multiple versions installed, but only one of them being active.

Read more about it in our guide,
http://guide.macports.org/#internals.images

Rainer