[CMake] Propagating variable to toplevel parent

Mathieu Malaterre mathieu.malaterre at gmail.com
Wed Jul 7 06:34:17 EDT 2010

Hi there,

  I am wondering if I am missing anything here. How would one
propagate a variable across subdirectories in cmake ? I thought that a
simple CACHE variable would do the trick, but using cmake 2.8.1 I had
to do the following trick

list(APPEND v "42")
# make sure to actually update the CACHE variable:
set(v ${v} CACHE INTERNAL "toto")

My goal is that at the end of the toplevel cmakelists.txt file, cmake
would have collected a list of installation path.

Thanks for comments,


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