The following two-line Makefile contains a spurious TAB character:
foo.o: foo.h
as shown by "cat -vet":
foo.o:^Ifoo.h$
^I$
If you create foo.c foo.h and type "make foo.o" using this Makefile,
you will get the message:
make: `foo.o' is up to date.
This behavior seems plain wrong. How can a nonexistent file be up to
date? Sun's version of make will attempt to compile foo.c, which is
arguably either correct or incorrect behavior. I can think of three
defensible behaviors for make:
(1) Complain about having a null command,
(2) "Run" the null command in some fashion, such as printing a blank line, or
(3) Ignore the null command completely, as Sun's make does.
You get to pick. :-)
--
Geoff Kuenning [EMAIL PROTECTED] http://www.cs.hmc.edu/~geoff/
The DMCA criminalizes curiosity. It would put Susie in jail for
taking her stereo apart to see how it works.
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