[Scons-users] cache not working as expected for a recompile in another directory

[Tom Tanner]

On 16/11/15 16:05, Abt, Johannes wrote:
> Hi,
>
> I have the same sources in different directories on the same host. I want to compile the sources in both directories.
> And I want to speed up the second compile by using a common cache directory for both compiles.
>
> The compile command is the same on both locations, the output of "g++ -E ..." is the same, even the (generated) object files have the same content.
> Though everything gets compiled twice. "--cache-debug=-" tells me that the object files get stored on different locations in the cache.
>
> My question is now: What data does the cache manager(?) use for calculating the hash?
>
> Regards,
> Johannes
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The directory name will be included in the command line, which is 
included as part of the calculation when determining if something needs 
to be built.