Fix mac warning about root-canal not existing

root-canal is only built for Linux, and this is now an error on internal
branches.

Fixes: 148658941
Test: on mac: `m nothing`; see fewer warnings
Change-Id: I6ab719d80fedd55eefbcfc402c2a00daca6c287a
1 file changed
tree: d0f8677dc88cc287dd3c6093a08a4ad4b1e17cb6
  1. build/
  2. docs/
  3. emu_test/
  4. libraries/
  5. scripts/
  6. tests/
  7. utils/
  8. PREUPLOAD.cfg