[CMake] macro withunexpected results

[ope]

Alexander Neundorf schrieb:
> On Friday 24 August 2007 15:02, you wrote:
>>>> macro(ADD_SUBDIRECTORIES dirlist)
>>>>   set(prefix " + ")
>>>>   MESSAGE(STATUS "add_subdirectories: ${ARGN}")
>>>>   foreach(subdir ${dirlist})
>>>>     MESSAGE(STATUS "${prefix}${subdir}")
>>>>     add_subdirectory(${subdir})
>>>>   endforeach(subdir ${dirlist})
>>>> endmacro(ADD_SUBDIRECTORIES)
>>>>
>>>> using this gets:
>>>>
>>>> ...
>>>> -- Scanning for sub projects in extra:
>>>> -- Adding est;boost;threadpool
>>>> -- add_subdirectories: boost;threadpool
>>>> --  + est
>>>> ...
>>> The macro has one argument "dirlist" which gets the first argument: est.
>>> The remaining arguments go into ARGN. You are iterating over the first
>>> argument only.
>> Thanks, I changed to:
>>
>> macro(ADD_SUBDIRECTORIES)
>>   set(prefix " + ")
>>   MESSAGE(STATUS "add_subdirectories: ${ARGN}")
>>   foreach(subdir ${ARGN})
>>     MESSAGE(STATUS "${prefix}${subdir}")
>>     add_subdirectory(${subdir})
>>   endforeach(subdir ${ARGN})
>> endmacro(ADD_SUBDIRECTORIES)
>>
>> and got:
>>
>> -- Scanning for sub projects in extra:
>> -- Adding est;boost;threadpool
>> -- add_subdirectories: est;boost;threadpool
>> --  + est
>> --  + boost
>> -- Scanning ...
>>
>> The last is missing, why?
> 
> 
> This should work, maybe there is something in the CMakeCache.txt or some file 
> not saved or ...

macro(ADD_SUBDIRECTORIES)
  set(prefix " + ")
  MESSAGE(STATUS "add_subdirectories: ${ARGN}")
  foreach(subdir ${ARGN})
    MESSAGE(STATUS "${prefix}${subdir}")
    add_subdirectory(${subdir})
  endforeach(subdir ${ARGN})
endmacro(ADD_SUBDIRECTORIES)

gets for:

$ find . -name CMakeLists.txt|sort
./CMakeLists.txt
./extra/boost/CMakeLists.txt
./extra/boost/libs/asio/CMakeLists.txt
./extra/boost/libs/CMakeLists.txt
./extra/boost/libs/md5/CMakeLists.txt
./extra/boost/libs/md5/src/CMakeLists.txt
./extra/boost/libs/system/CMakeLists.txt
./extra/boost/libs/system/src/CMakeLists.txt
./extra/CMakeLists.txt
./extra/est/CMakeLists.txt
./extra/threadpool/CMakeLists.txt
./src/CMakeLists.txt
./src/downloader/CMakeLists.txt
./src/libs/CMakeLists.txt
./src/libs/inet_io/CMakeLists.txt
./src/libs/inet_io/src/CMakeLists.txt
./src/settings/CMakeLists.txt

where the following files contains the macro add_subdirectories()
$ find . -name CMakeLists.txt -exec egrep --with-filename
add_subdirectories {} \;
./src/libs/CMakeLists.txt:add_subdirectories(${SUBLIBS_DIRS})
./src/CMakeLists.txt:add_subdirectories(${SUBPROJECT_DIRS})
./extra/boost/libs/CMakeLists.txt:add_subdirectories(${BOOST_SUBPROJECT_DIRS})
./extra/CMakeLists.txt:add_subdirectories(${EXTRA_PROJECT_DIRS})

and inside build dir:

$ rm -rf * && cmake ..
...
-- Scanning for sub projects in extra:
-- add_subdirectories: est;boost;threadpool
--  + est
--  + boost
-- Scanning for sub projects in extra/boost/libs:
-- add_subdirectories: md5;asio;system
--  + md5
--  + asio
--  + system
--  + threadpool
-- Scanning for sub projects in src:
-- add_subdirectories: libs;downloader;settings
--  + libs
-- Scanning for sub projects in src/libs:
-- add_subdirectories: inet_io
--  + inet_io
--  + downloader
--  + settings
-- Configuring done
...


That is confusing, isn't it?

Thanks,
Olaf