gcc 4.7.3-r1 can't create executables
an error I got after updating to gcc 4.7.4-r1

After updating gcc to version 4.7.3-r1 I got:

C compiler cannot create executbles

I did:

# gcc-config -c
gcc-config: Active gcc profile is invalid!
[1] x86-pc-linux-gnu-4.7.3

# gcc-config x86-pc-linux-gnu-4.7.3
Switching native-compiler to x86-pc-linux-gnu-4.7.3

That fixed it for me. (: