No rule to make foo.cpp needed by foo.o ???
David Holmes - Sun Microsystems
David.Holmes at Sun.COM
Tue Dec 22 00:48:20 UTC 2009
Well I fixed the time problem but that didn't fix the problem. I just
updated three files and had to try the build three times before it
worked - each time it reported needing to make one of the updated files.
David Holmes - Sun Microsystems said the following on 12/21/09 17:05:
> Deepak Mathews said the following on 12/21/09 16:52:
>> Are you sure about the path to foo.cpp in the makefile is correctly
>> set during compilation.
> Yes paths are fine.
>> It also can be a timestamp issue, but only if the updated file has a
>> modification time older...it might be trivial... but the if system
>> time is behind it can cause this issue..
> I discovered that simply re-issuing the build command also fixes it.
> Just seems to take two goes to get it right.
> And the build machine time is slightly behind the fileserver on which
> the source files reside, so I think it is a timestamp issue.
>> On Mon, Dec 21, 2009 at 8:46 AM, David Holmes - Sun Microsystems
>> <David.Holmes at sun.com <mailto:David.Holmes at sun.com>> wrote:
>> I'm doing a build and get a compilation error in foo.cpp, so I fix
>> the problem that caused the error and make then aborts with
>> "No rule to make target 'foo.cpp' needed by 'foo.o'. Stop"
>> I have to do a clean and then re-build to get past this.
>> This is building hotspot on linux and the make version is 3.81
>> This is driving me nuts and wasting a lot of time!
>> Anyone got any idea why make is doing this? It is as-if it can't
>> find the updated cpp file. Could it be a timestamp issue?
>> David Holmes
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