1make: Unknown modifier ":Z" 2 while evaluating "${:Z}" with value "" 3 in command "@echo ${:Z}" 4 in target "provoke-error" 5 in make[2] in directory "<curdir>" 6*** Error code 2 (continuing) 7 8Stop. 9make: stopped making "disabled-compat" in unit-tests 10make: Unknown modifier ":Z" 11 while evaluating "${:Z}" with value "" 12 in command "@echo ${:Z}" 13 in target "provoke-error" 14 in make[2] in directory "<curdir>" 15*** [disabled-parallel] Error code 2 16 17make: stopped making "disabled-parallel" in unit-tests 18make: Unknown modifier ":Z" 19 while evaluating "${:Z}" with value "" 20 in command "@echo ${:Z}" 21 in target "provoke-error" 22 in make[2] in directory "<curdir>" 23 in command "make -f varname-make_stack_trace.mk provoke-error" 24 in target "enabled-compat" 25 in make[1] in directory "<curdir>" 26*** Error code 2 (continuing) 27 28Stop. 29make: stopped making "enabled-compat" in unit-tests 30make: Unknown modifier ":Z" 31 while evaluating "${:Z}" with value "" 32 in command "@echo ${:Z}" 33 in target "provoke-error" 34 in make[2] in directory "<curdir>" 35 in target "enabled-parallel" 36 in make[1] in directory "<curdir>" 37*** [enabled-parallel] Error code 2 38 39make: stopped making "enabled-parallel" in unit-tests 40exit status 0 41