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make automatically remove and ignore a dependency files specified in a n


From: Christophe Vial
Subject: make automatically remove and ignore a dependency files specified in a non static rule
Date: Wed, 07 Jul 2004 20:15:02 -0700

Hi,

I found that weird behavior while experimenting with the static rules
capabilities and I'm not sure if it is a bug or a feature. Here is a
simple testcase:

        % cat Makefile
titi.test : %.test : %.testsrc
        echo "special test" 

%.test : %.testsrc
        echo "normal test"

%.testsrc:
        touch $@


        % make titi.test
touch titi.testsrc
echo "special test" 
special test


        % make toto.test
touch toto.testsrc
echo "normal test"
normal test
rm toto.testsrc

        % touch toto.ksrc ; make toto.test
touch toto.testsrc
echo "normal test"
normal test


The static rule seems to behave as I would expect. But the non static
one automatically does a rm of the dependency...
This happens with both v3.79 and v3.80. This is not platform specific.
The run with the -p option does not provide a clue about that extraneous
rm ...

if the makefile is updated to actually create the %.k targets:

        % cat Makefile
titi.test : %.test : %.testsrc
        echo "special test" > $@

%.test : %.testsrc
        echo "normal test" > $@

%.testsrc:
        touch $@
        

Then the running "make toto.test" will create toto.test and remove
toto.testsrc. Running the command "make toto.test" a second time will
simply ignore the missing dependency toto.testsrc and simply print that
the target is up to date...

Am I missing something?

Let me know if you need more informations.

Thanks,

        kifof




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