https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116080
--- Comment #14 from andi at firstfloor dot org --- The test relies on the gcc/testsuite/lib/target-supports.exp:check_effective_target_tail_call probe matching what the test does. Perhaps the way you are passing options doesn't pass them to the TCL based test code? The probe should be in the logs, perhaps you can find that or upload them somewhere.
