+# This *should* work:
+# @(./$(BNTEST)|bc) | awk '{ \
+# Some broken bc's treat the pipe as a terminal :-(
+# By using a temporary file, errors detected by awk may be farther away from
+# the test that caused them; but even with the pipe there'd be some distance.
+ @(./$(BNTEST) >tmp.bntest; echo quit >>tmp.bntest; bc tmp.bntest) | awk '{ \