[CMake] Parallel build with custom command

[Bill Hoffman]

On 10/7/2014 10:26 AM, Ruslan Baratov wrote:
>
> I'm expecting 1 message `Script run`, but I have 5 messages. If I modify
> `generate.cmake` script so it always write the file then everything
> works fine.
Ah OK, I see.  Your depend never gets up to date.  If you touch 
generate.cmake, and the file already exists, then generate.cmake will 
always be newer than the file.  And it will always try to run it.  So 
this is expected.

-Bill