gcc 出错 gcc-config: Active gcc profile is invalid!, 解决方法

http://forums.gentoo.org/viewtopic.php?t=27486

 

This is usually caused by
doing an emerge world that includes a gcc upgrade. What happens is, the
new gcc is compiled, but the ebuild fails to switch your system to the
new compiler. Before trying any of the solutions above, try doing:

Code:

# gcc-config

You should be presented with a list of GCC versions that are available
on your machine. Each version has a number next to it. Find the latest
version of gcc's number, (for example, 1), and type:

Code:

# gcc-config 1

...to switch to the new compiler. Then,

Code:

# source /etc/profile

... and continue emerging or whatever you were doing.