Libsslport library conflict when using components built with studio 11 & 12

Question

I have a library built with Studio 11 that links with libstlport.so in studio 11. I then build an application with studio 12 which links with studio 12 stilport.so. When I do an ldd on the application it reports that it depends on stlport.so from both studio 11 and 12. This happens even if I set LD_LIBRARY_PATH to explicitly point to the Studio 12 lib directory.
On running the application it consistently crashes at exit with the following stack trace:
std::locale::~locale()
_exit()
exit()
The problem is resolved if we build everything with Studio 11.
It should be possible to link with components build with older version of the compiler. Can someone tell us what is the right way to do this.
Thanks.
Shirish.

Answer 1

Setting LD_LIBRARY_PATH is useful for testing and for one-off programs used only by yourself, but it is not a sustainable or scalable solution. For more on this topic:
http://blogs.sun.com/rie/entry/tt_ld_library_path_tt
When you build applications using shared libraries, you usually need to set the runpath (-R option).
By default, the CC command sets the runpath to point into the compiler installation area. If parts of the application are build with different compilers, you can by deafult wind up with runpaths pointing into each compiler area, which can lead to linking two versions of a library, a recipe for disaster.
The best way to solve this problem depends on how you will use and deploy the application. I'll suggest a general solution, which works even if you deploy the application to remote systems used by others.
Create a runtime environment for the application, perhaps a directory tree like this:
myapp/
    bin/
    lib/
    doc/Main programs go in the bin directory. Shared libraries go in the lib directory.
Build shared libraries and executable programs with a relative runpath pointing into the lib directory:
CC ... -R \$ORIGIN/../libIf you build an application entirely with Studio 11, copy the studio 11 version of libstlport.so into the lib directory.
If multiple compilers are used, copy libstlport.so from the most recent compiler into the lib directory.