[CMake] INCLUDE_DIRECTORIES in sub-directories doesn't work?

[Hugo Heden]

2008/11/25 Sean Soria <sean.soria at gmail.com>:
> CMakeLists.txt:
> INCLUDE_DIRECTORIES(.)
> ADD_SUBDIRECTORY(foo)
> ADD_EXECUTABLE(hello main.c foo/main.c)
>

How about an absolute path instead of a relative?

INCLUDE_DIRECTORIES( ${CMAKE_CURRENT_SOURCE_DIR} )

> foo/CMakeLists.txt:
> INCLUDE_DIRECTORIES(.)
>
> I would expect foo/main.c to be compiled with:
> /usr/bin/gcc   -I/code/xbmc/XBMC/build.test/.
> -I/code/xbmc/XBMC/build.test/foo/.   -o
> CMakeFiles/hello.dir/foo/main.o   -c
> /code/xbmc/XBMC/build.test/foo/main.c
>
> I even see the include path defined in
> foo/CMakeFiles/CMakeDirectoryInformation.cmake:
> SET(CMAKE_C_INCLUDE_PATH
>  "."
>  "foo/."
>  )
>
> Unfortunately cmake seems to ignore these and I get this instead:
> /usr/bin/gcc   -I/code/xbmc/XBMC/build.test/.   -o
> CMakeFiles/hello.dir/foo/main.o   -c
> /code/xbmc/XBMC/build.test/foo/main.c
>
> Am I missing something or is INCLUDE_DIRECTORIES broken?  I've even
> tried set_property on the directory.
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