[CMake] need two compilation to achieve success

[Michael Jackson]

On Jun 3, 2009, at 2:53 PM, eial at cs.bgu.ac.il wrote:

>
> TARGET_LINK_LIBRARIES(AgathaHud libAgathaUtils libAgathaEngine  
> libAgathaThreads)
> the error output is: /usr/lib/gcc/x86_64-pc-linux-gnu/ 
> 4.3.3/../../../../x86_64-pc-linux-gnu/bin/ld:
> cannot find -llibAgathaUtils
>
> like I've said before, the libs are generated into the bin/libs  
> folder and the actual program binary
> is created at bin

Subtle..

  You need something like:

link_directories (${PROJECT_BINARY_DIR}/bin/lib )

Assuming you only have one call to "project()"

If you are dumping libraries into bin/libs then I would set the  
following variables near the top of the top most cmakelists.txt file,  
just after the first call to "project"

# ---------- Setup output Directories -------------------------
SET (CMAKE_LIBRARY_OUTPUT_DIRECTORY
   ${PROJECT_BINARY_DIR}/bin/libs
   CACHE PATH
   "Single Directory for all Libraries"
   )

# --------- Setup the Executable output Directory -------------
SET (CMAKE_RUNTIME_OUTPUT_DIRECTORY
   ${PROJECT_BINARY_DIR}/bin
   CACHE PATH
   "Single Directory for all Executables."
   )

# --------- Setup the Executable output Directory -------------
SET (CMAKE_ARCHIVE_OUTPUT_DIRECTORY
   ${PROJECT_BINARY_DIR}/bin/libs
   CACHE PATH
   "Single Directory for all static libraries."
   )

then you can use those variables in your other sub projects if needed:

link_libraries(${CMAKE_LIBRARY_OUTPUT_DIRECTORY})

HTH.

_________________________________________________________
Mike Jackson                  mike.jackson at bluequartz.net
BlueQuartz Software                    www.bluequartz.net
Principal Software Engineer                  Dayton, Ohio