2006-10-29

Invalid gcc profile

Tried to install a package today and received the following horrifying output from running emerge flac

configure: error: installation or configuration problem: C compiler cannot create executables.

Found out in this (excellent) Gentoo forum thread that it was only due to the fact that $CHOSTS flag (from /etc/make.conf) was not being exported at build-time due to gcc using an invalid profile.

So I ran gcc-config -l and sure enough it outputted the following:

# gcc-config -l

* /usr/bin/gcc-config: Profile does not exist or invalid setting for /etc/env.d/gcc/i686-pc-linux-gnu-4.1.1

[1] i686-pc-linux-gnu-4.1.1 * [invalid]


To fix this problem all I had to do was to run gcc-config again only this time I had to specify the profile to use which coincidently was the only one to use anyway.

# gcc-config 1
* Switching native-compiler to i686-pc-linux-gnu-4.1.1 ... [ ok ]


Now everything compiles properly. I believe this was caused after using revdep-rebuild which was recommended by emerge when I tried to use the prune option on the "world" ebuild meta-package with emerge -P world.

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