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[Makefile help] self-documenting makefile #make #documenting
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| ## help: display this help message | |
| # Any line prefixed with two hashes will be output on `make help` | |
| # The colon `:` is the alignment seperator | |
| .PHONY : help | |
| help : Makefile | |
| @sed -n 's/^##//p' $< | column -t -s: |
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