gcc: use Nix instead of bash for conditional

Now that we use the standard builder, the commands produced by
pre-configure.nix are wrapped in a bash function.  Inside of a bash
function, `export foo=` will still add `foo` to the environment of
any child processes forked after that point, but those variables
will *not* be visible to bash code which is outside of the
function-scope in which the `export` occurs.

Weird crap like this is yet another reason why we need to move away
from using bash for logic.  Let's switch.

0 files changed, 0 insertions, 0 deletions