[CMake] new RPATH support questions

[Alexander Neundorf]

Hi,  
  
I just updated from current cvs.  
  
CMakeLists.txt:  
  
add_library(foo SHARED foo.c)  
  
add_executable(footest main.c)  
  
target_link_libraries(footest foor)  
  
install_targets(/bin footest)  
install_targets(/lib foo)  
  
This has the effect, that footest is initially linked with rpath to the  
library in the build dir, and when installed it is linked again but  
without RPATH. I thought it should be relinked to the install RPATH ?  
  
Besides that, AFAIK previous cmake version didn't relink during  
installation. Are you sure it is a good idea to change the default  
behaviour ?  
 
Does RPATH actually only exist for executables or also for shared 
libraries ? Does it have to be set for both or is it enough if it is set 
for the executables ? 
 
For KDE I plan the following: 
 
1) CMAKE_SKIP_RPATH and create wrapper shell scripts which set 
LD_LIBRARY_PATH 
 
2) COMPILE_WITH_INSTALL_RPATH and INSTALL_RPATH= 
${CMAKE_INSTALL_PREFIX}/lib 
(for building releases) 
 
3) COMPILE_WITH_INSTALL_RPATH and INSTALL_RPATH= ${LIBRARY_OUTPUT_PATH;
${CMAKE_INSTALL_PREFIX}/lib 
(for developers, so that it runs also from the builddir) 
 
Do you think this is sensible ? 
 
I think relinking is not a good option for KDE, since this will take 
really a lot of time. 
 
Bye 
Alex 
 

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