[CMake] CMakeCache.txt, MSVC generator, and automatic re-configuration

[Bill Hoffman]

On 6/7/2012 12:05 PM, Clifford Yapp wrote:
> I noticed when doing a recent test of our build with CMake 2.8.8 and
> MSVC that the CMakeCache.txt file seems to be getting changes applied
> to it during the generation step (primarily a lot of additions with
> the comment "Stored GUID", seemingly related to custom
> commands/targets.)  One of the things I've noticed when doing Windows
> builds is that it seems to be very important that the CMakeCache.txt
> file after Configure/Generate not be in a state that triggers an
> automatic re-running of CMake "out of the box" in MSVC - we have
> hundreds of build targets and the interactive prompting is a killer
> for usability.  From what I have seen previously, it looks like this
> automatic re-run takes place whenever the CMakeCache.txt file changes
> after the "Configure" step is complete.  That was previously happing
> due to quirks with our build, but we had found ways to avoid the
> problem and were getting a "clean" MSVC build with no CMake
> re-running. I don't recall seeing this "Stored GUID" content appearing
> in the generator step previously - is this new?
>
What version of Visual studio?  And, do you have a small reproducible 
test case for this?

-Bill