On 03/03/2015 12:46 AM, [email protected] wrote:
Hi,
my tupfile:
: hello.c |> xcopy > hello.o |> hello.o
tup only runs once and generates the hello.o. The next run tup tells
me nothing has changed. Thats ok.
If I change the hello.c and run "tup" again it still says nothing to
do. Why does tup not recognize that my hello.c file has changed? I
changed file contents with eclipse. If I delete the hello.o, tup
rebuilds and says it was deleted from outside...
Tup uses the "inputs section" (hello.c) as a reference but not as the
actual set of inputs - if the files in the inputs section aren't read
when the command runs they will be dropped as a dependency. If you add
"cat hello.c" or something to the command it should rebuild when hello.c
changes.
I think the reasoning is, by dropping dependencies like this, you can
overspecify inputs and get safe behavior with a simpler definition.
I've relied on the behavior myself I think, but it does seem odd if you
don't have the use case yourself.
Does anybody has the same issues?
Is tup not working with Windows 7 x64?
Regards,
Tobias
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