2011/7/12 Jean-Christophe Fillion-Robin <jchris.filli...@kitware.com>
> Hi Daniel,
>
> This sounds like a great feature :), do you think you could also associate
> a test with your changes ?
>
Done. I have updated the test and the documentation. Everything is in the
'genexp' branch of git://github.com/purpleKarrot/CMake.git
> Out of curiosity, why "*the right set of include directories is unknown
> until all components
> have been processed*" ?
>
> If it resumes not to be the case, I believe using a CMakeCache variable
> could do the job.
>
> For example:
>
> # Clear foo bar
> set(FOOBAR_DIRS "" CACHE STRING "Foobar dirs" FORCE)
>
> ...
>
> add_subdirectory(C)
> set(C_DIRS ..) # Collect C directories
> set(FOOBAR_DIRS ${FOOBAR_DIRS} ${C_DIRS} CACHE STRING "Foobar dirs" FORCE)
> include_directories(${FOOBAR_DIRS})
> add_libraries(C ...)
>
>
> ...
>
> add_subdirectory(B)
> set(B_DIRS ..) # Collect B directories
> set(FOOBAR_DIRS ${FOOBAR_DIRS} ${B_DIRS} CACHE STRING "Foobar dirs" FORCE)
> include_directories(${FOOBAR_DIRS})
> add_libraries(B ...)
>
> ...
>
> add_subdirectory(A)
> set(A_DIRS ..) # Collect A directories
> set(FOOBAR_DIRS ${FOOBAR_DIRS} ${A_DIRS} CACHE STRING "Foobar dirs" FORCE)
> include_directories(${FOOBAR_DIRS})
> add_libraries(A ...)
>
This works for the simple A->B->C dag from my example, but only because you
already knew the dependencies. Otherwise you would not have reordered them.
What if additionally C depends on A?
cheers, Daniel
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