MERCURY_OPTIONS= --deep-random-write=25 --deep-std-name --mdb-disable-progress
gmake[3]: Entering directory '/home/mercury/testing/run/build/mercury-srcdist-rotd-2026-06-09/tests/valid'
/home/mercury/testing/run/build/mercury-srcdist-rotd-2026-06-09/stage2/scripts/mmc --generate-dependencies --grade hlc.gc    --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS -O5 --intermod-opt -O0 --optimise-tailcalls --no-warn-non-tail-recursion   require_tailrec_2 > require_tailrec_2.dep_err 2>&1
gmake[3]: Leaving directory '/home/mercury/testing/run/build/mercury-srcdist-rotd-2026-06-09/tests/valid'
gmake[3]: Entering directory '/home/mercury/testing/run/build/mercury-srcdist-rotd-2026-06-09/tests/valid'
/home/mercury/testing/run/build/mercury-srcdist-rotd-2026-06-09/stage2/scripts/mmc --make-interface --grade hlc.gc    --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS -O5 --intermod-opt -O0 --optimise-tailcalls --no-warn-non-tail-recursion   require_tailrec_2
/home/mercury/testing/run/build/mercury-srcdist-rotd-2026-06-09/stage2/scripts/mmc --make-optimization-interface --grade hlc.gc    --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS -O5 --intermod-opt -O0 --optimise-tailcalls --no-warn-non-tail-recursion   require_tailrec_2
/home/mercury/testing/run/build/mercury-srcdist-rotd-2026-06-09/stage2/scripts/mmc --compile-to-c --grade hlc.gc    --mercury-linkage static --flags ../TESTS_FLAGS --flags ../WS_FLAGS -O5 --intermod-opt -O0 --optimise-tailcalls --no-warn-non-tail-recursion   require_tailrec_2 > require_tailrec_2.err 2>&1
gmake[3]: *** [/tmp/mmake.ZBeZkc:2906: require_tailrec_2.c_date] Error 1
gmake[3]: Target 'require_tailrec_2.runtest' not remade because of errors.
gmake[3]: Leaving directory '/home/mercury/testing/run/build/mercury-srcdist-rotd-2026-06-09/tests/valid'
ERROR OUTPUT
require_tailrec_2.m:123: Error in `:- pragma require_tail_recursion' for
require_tailrec_2.m:123:   function `odd2'/1:
require_tailrec_2.m:123:   the code defining this function contains no
require_tailrec_2.m:123:   recursive calls at all, tail-recursive or otherwise.
require_tailrec_2.m:180: Warning in `:- pragma require_tail_recursion' for
require_tailrec_2.m:180:   function `odd6'/1:
require_tailrec_2.m:180:   the code defining this function contains no
require_tailrec_2.m:180:   recursive calls at all, tail-recursive or otherwise.
require_tailrec_2.m:185: Warning in function `even6'/1:
require_tailrec_2.m:185:   this self-recursive call is not tail recursive.
END OF THE ERROR OUTPUT