On 11/02/2008, David Paleino wrote: > Not true: > [Snip unrelated logic stuff.]
Yes, true. Functionally, you want foo => bar. Check (assuming here foo is absent): ,---- | [EMAIL PROTECTED]:~$ [ ! -f foo ] && echo "Doing bar 1" | Doing bar 1 | [EMAIL PROTECTED]:~$ [ -f foo ] && echo "Doing bar 2" | [EMAIL PROTECTED]:~$ [ ! ! -f foo ] || echo "Doing bar 1" | Doing bar 1 | [EMAIL PROTECTED]:~$ [ ! -f foo ] || echo "Doing bar 2" | [EMAIL PROTECTED]:~$ `---- Now, moving that to a Makefile: ,---- | #!/usr/bin/make -f | | and: | [ ! -f foo ] && echo "Doing bar 1" | [ -f foo ] && echo "Doing bar 2" | | or: | [ ! ! -f foo ] || echo "Doing bar 1" | [ ! -f foo ] || echo "Doing bar 2" `---- You now get: ,---- | [EMAIL PROTECTED]:~$ make or | [ ! ! -f foo ] || echo "Doing bar 1" | Doing bar 1 | [ ! -f foo ] || echo "Doing bar 2" | [EMAIL PROTECTED]:~$ make and | [ ! -f foo ] && echo "Doing bar 1" | Doing bar 1 | [ -f foo ] && echo "Doing bar 2" | make: *** [and] Erreur 1 `---- > but I can't understand why it couldn't suggest something like: > > [ -f Makefile ] && $(MAKE) distclean > > which triggers the same result (at least in bash -- that's why I'm > supposing that "&&" needs to be escaped somehow in Makefiles). Explained already in my first mail, and in extenso by Justin. -- Cyril Brulebois
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