On Fri, Nov 26, 2010 at 3:24 PM, Wylie, Brian <bnwy...@sandia.gov> wrote:
> Hi All,
>
> I want to force an 'out-of-source' build for a small project that I converted
> to use Cmake.
>
> I did a bit of searching and found variants of the following...
>
> # Make sure the build is out of source
> STRING(COMPARE EQUAL "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}" insource)
> IF(insource)
> MESSAGE(FATAL_ERROR "Do not build in your source dir please :)")
> ENDIF(insource)
>
>
> It works but it still generates a CMakeCache.txt file and a CMakeFiles
> directory in the source directory (which I've also seen others discussing)...
> is there a more official way to block 'in-source' builds that leaves the
> source dir pristine?
>
This was discussed recently by the ITK community, the best they came
up with was making CMake give instructions on how to clean up your
source tree. Hopefully this link works, and you can see what I mean,
http://www.itk.org/gitweb?p=ITK.git;a=blob;f=CMake/PreventInSourceBuilds.cmake;h=78f6b4e63ab7b08ec8bbbb7146f61adbb791a178;hb=HEAD
Marcus
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