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

[Sean Soria]

That would add the included directories to every source in the
project.  I want it included _only_ for the foo directory.

On Tue, Nov 25, 2008 at 2:59 PM, THE HIGHHAT <thehighhat at gmail.com> wrote:
> On Tue, Nov 25, 2008 at 3:43 PM, Sean Soria <sean.soria at gmail.com> wrote:
>> No, this doesn't work either:
>> CMakeLists.txt:
>> ADD_SUBDIRECTORY(foo)
>> ADD_EXECUTABLE(hello main.c foo/main.c)
>>
>> foo/CMakeLists.txt:
>> SET_PROPERTY(SOURCE main.c PROPERTY INCLUDE_DIRECTORIES
>> ${CMAKE_CURRENT_SOURCE_DIR})
>>
>> On Tue, Nov 25, 2008 at 2:26 PM, Sean Soria <sean.soria at gmail.com> wrote:
>>> Include doesn't seem to do what I would expect either.  I want to add
>>> include directories for any files found in foo.  it seems
>>> include_directories doesn't do it because there must be a target in
>>> that directory.  would setting the source property do it?
>>>
>>> On Tue, Nov 25, 2008 at 2:10 PM, Bill Hoffman <bill.hoffman at kitware.com> wrote:
>>>> Sean Soria wrote:
>>>>>
>>>>> I had them switched originally and just double checked.  This also doesn't
>>>>> work:
>>>>> CMakeLists.txt:
>>>>> ADD_SUBDIRECTORY(foo)
>>>>> ADD_EXECUTABLE(hello main.c foo/main.c)
>>>>>
>>>>> foo/CMakeLists.txt:
>>>>> INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
>>>>>
>>>>
>>>> The problem is the add_subdirectory.  Although the docs are not clear on
>>>> this include_directories is essentially a directory property.  It sets the
>>>> include directories for all targets in that directory.  You could use
>>>> include instead.
>>>>
>>>> include(foo/includes.cmake)
>>>>
>>>>
>>>> -Bill
>>>>
>>>>
>>>
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>
> Use the cache to overcome scope issues....
>
>
> CMakeLists.txt:
>
> add_subdirectory ( foo )
> include_directories ( ${NESTED_DIRS} )
> add_executable ( hello main.c )
>
>
> foo/CMakeLists.txt:
>
> set ( NESTED_DIRS  ${CMAKE_CURRENT_SOURCE_DIR}  CACHE INTERNAL "DIRS" )
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