[CMake] Correct way to make an arbitrary file trigger a reconfigure...

[Malfettone, Kris]

Anyone?



From: cmake-bounces at cmake.org [mailto:cmake-bounces at cmake.org] On Behalf Of Malfettone, Kris
Sent: Thursday, October 03, 2013 8:43 AM
To: cmake at cmake.org
Subject: [CMake] Correct way to make an arbitrary file trigger a reconfigure...

Hi, I am trying to make cmake reconfigure whenever a certain file is touched.  This is because the file ends up listing out a set of directories that need to be built during the build.  Currently I do a trick where I use configure file to write out a file that will never be used but causes the input file to trigger reconfigures.
For example:

configure_file( file_i_care_about.txt ${CMAKE_CURRENT_BINARY_DIR}/tmp_file_that_isn't_used.txt )

Is there another recommended way or is this the best approach.  I have tried searching for this but haven't found anything on it yet.

-Kris

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