Alan W. Irwin wrote:
My obvious next step is to try and make a simple CMake example that
reliably
reproduces the bug, but this is such an important bug (at least for those
with access to multiprocessors who want to use parallel builds) that I
thought the above result was worth reporting immediately since it tends to
point the finger at something CMake is doing rather than some bug in GNU
make.
We use -j N builds all the time at Kitware for VTK, ParaView and CMake.
It is however, possible to create input to CMake that will not work in
a parallel environment. A simple example would be the best way to
figure out if there is a way around the issue you are having. One thing
you might want to look at is the add_dependancy command, and make sure
that your custom targets are built in some order. From your email, I am
not exactly sure what targets are involved and what files are created at
what time.
-Bill
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