| 1 | # Investigating dontcare (-include) targets to see if they're good for anything. |
| 2 | |
| 3 | # Observation 1: If a dontcare target fails during makefile remaking and is |
| 4 | # needed during the real run, make gives a misleading error that it has no |
| 5 | # rule instead of reporting the original failure. |
| 6 | |
| 7 | # Observation 2: If a required target fails, make makes do with the original |
| 8 | # error message. |
| 9 | |
| 10 | include required.mk |
| 11 | -include optional.mk |
| 12 | |
| 13 | all: required.mk |
| 14 | |
| 15 | fail%: |
| 16 | @echo "Failing to make $@" |
| 17 | false |
| 18 | |
| 19 | required.mk: fail1 |
| 20 | echo "Trying to make $@" |
| 21 | |
| 22 | optional.mk: fail1 |
| 23 | echo "Trying to make $@" |