[CMake] Linker Include Path

[Matthias Schweinoch]

Hi all,


I'm using cmake (2.8.5) to build a set of C++ libraries. I have a 
project directory structure which is basically organized like this:



package/component/CMakeLists.txt
package/component/inc/foo.hpp
package/component/src/foo.cpp


Boiled down, my CMakeLists.txt for this component looks like this:


SET(HEADERS inc/foo.hpp)
SET(SOURCES src/foo.cpp)
SET(LIBS whatever)
INCLUDE_DIRECTORIES(inc)
ADD_LIBRARY(MyLib ${HEADERS} ${SOURCES})
TARGET_LINK_LIBRARIES(MyLib ${LIBRARIES})


This has worked fine for me. Now, however, I would like to add another 
subdirectory to the src tree (this has organizational reasons), 
resulting in something like this:



package/component/CMakeLists.txt
package/component/inc/foo.hpp
package/component/src/foo.cpp
package/component/src/xyz/xyz.cpp


I modified the SOURCES assignment in my CMakeLists.txt like so:


SET(SOURCES src/foo.cpp src/xyz/xyz.cpp)


While this does compile, it does not link. I assume that this is because 
the xyz.o is put in



CURRENT_BINARY_OUTPUT/xyz/xyz.o


and the linker does not include that subdirectory. If I move the source 
file up by one level (i.e. into the src directory), everything compiles 
and links just fine, but that's not really an acceptable solution. Is 
there some (portable) way to tell CMake to include the xyz output path 
so that xyz.o is found at link time?




Thanks in advance for your help!


  Matthias
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Re: [CMake] Linker Include Path

[Matthias Schweinoch]

Sorry, never mind: Problem has resolved itself. The linker error was due 
to some other dependency.



On 28/10/11 20:44, Matthias Schweinoch wrote:

Hi all,


I'm using cmake (2.8.5) to build a set of C++ libraries. I have a 
project directory structure which is basically organized like this:



package/component/CMakeLists.txt
package/component/inc/foo.hpp
package/component/src/foo.cpp


Boiled down, my CMakeLists.txt for this component looks like this:


SET(HEADERS inc/foo.hpp)
SET(SOURCES src/foo.cpp)
SET(LIBS whatever)
INCLUDE_DIRECTORIES(inc)
ADD_LIBRARY(MyLib ${HEADERS} ${SOURCES})
TARGET_LINK_LIBRARIES(MyLib ${LIBRARIES})


This has worked fine for me. Now, however, I would like to add another 
subdirectory to the src tree (this has organizational reasons), 
resulting in something like this:



package/component/CMakeLists.txt
package/component/inc/foo.hpp
package/component/src/foo.cpp
package/component/src/xyz/xyz.cpp


I modified the SOURCES assignment in my CMakeLists.txt like so:


SET(SOURCES src/foo.cpp src/xyz/xyz.cpp)


While this does compile, it does not link. I assume that this is 
because the xyz.o is put in



CURRENT_BINARY_OUTPUT/xyz/xyz.o


and the linker does not include that subdirectory. If I move the 
source file up by one level (i.e. into the src directory), everything 
compiles and links just fine, but that's not really an acceptable 
solution. Is there some (portable) way to tell CMake to include the 
xyz output path so that xyz.o is found at link time?




Thanks in advance for your help!


  Matthias
--

Powered by www.kitware.com

Visit other Kitware open-source projects at 
http://www.kitware.com/opensource/opensource.html


Please keep messages on-topic and check the CMake FAQ at: 
http://www.cmake.org/Wiki/CMake_FAQ


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http://www.cmake.org/mailman/listinfo/cmake



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[CMake] How to specify out-of-source build/lib/bin directories

[Matthias Schweinoch]

Hi all,

I'm a new cmake user and I'm having a little trouble. Perhaps someone here can 
help me: I was wondering if it is possible to specify a build path manually 
within the toplevel CMakeLists.txt file? I did read the wiki about 
out-of-source build environments, but the examples all used ccmake for setting 
it up (or I missed it). The same applies to lib/bin paths, i.e. I would like to 
specify an out-of-source lib directory and an out-of-source bin directory to 
place the executables in... what would be the appropriate command for this?

Finally, I use doxygen for documentation. What would I need to add to the 
CMakeLists.txt file such that when I run 'make', the command 'doxygen Doxyfile' 
is executed in the toplevel source directory?

Thanks in advance for the help!

Matthias Schweinoch
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