The current project that I am working on has multiple projects layered through
subdirectories. The project was a conversion from traditional makefiles and
when we do a cmake build from the root of the source tree all is done
correctly. The issue comes to when we try and build a single component from a
out of source build directory (we are requiring out of source builds).
I have found a temp solution for example
/trunk/a
/trunk/b
/trunk/c
a requires b and b requires c to build correctly. As long as they dont share
dependencies, if I use add_subdirectory(src ${CMAKE_BINARY_DIR}/<project>) for
each it works to build the deps as needed. The issue is if both a and c require
the another dep pulled in the same way. The error that comes up is through a
policy error of CMP0013.
Yes, I could disable the policy, but would prefer a more elegant solution for
the issue. Any help would be appreciated.
--Philip
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