[ context: https://lists.gnu.org/archive/html/guix-devel/2017-02/msg00966.html ] Currently 'guix build' supports '--target=' option to allow cross-compilation, but 'guix environment' doe not. Sometimes it would be nice to peek at the environment that 'guix build' creates. Concrete example: When debugging 're2' cross-compilation error I used the following command to build a package: ./pre-inst-env guix build --check re2 --target=alpha-unknown-linux-gnu --no-grafts I was not sure what does g++ vs. TARGET-g++ means in guix. Would be nice to have an ability to get exactly build environment as: ./pre-inst-env guix environment re2 --target=alpha-unknown-linux-gnu --no-grafts Thanks! -- Sergei