[CMake] Disallowing in-source builds

[aaron.meadows at thomsonreuters.com]

Hi all.

 

Is there a good way to disallow in-source builds?  Ideally, I'd like to
prevent it before any cruft is written into the source tree.  I
experimented with writing a function into my CMakelists file and calling
it.  The function checked if CMAKE_BINARY_DIR was equal to
CMAKE_SOURCE_DIR and messaged a FATAL_ERROR if that was the case.  This
works ok, but still generates a CMakeFiles directory and a
CMakeCache.txt file.

 

The second half of the question is of course, is there an easy way to
clean out a source tree if an in-source build was accidentally kicked
off?  (short of dividing the files by their timestamp and removing the
newer ones, etc..)

 

Thanks!

 

--aaron

 

Aaron Meadows
Software Engineer

Thomson Reuters

Phone: 314.468.3530
Mobile: 636.541.6139
aaron.meadows at thomsonreuters.com
thomsonreuters.com

 



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