Maxime Devos <[email protected]> writes: > Maybe ./configure somehow picks up an old g++ from outside the "guix shell" > environment.
This turned out to be the issue. I discovered my shell startup files were mis-configured by running `guix shell --pure --check -D guix`. This is definitely a user error, and my fault, but maybe we should update the manual to include the `--check` flag? -- Katherine
