Linking TBB using CMake and tbb_build

[M_Z_]

I'd like to use CMake, GTest, and TBB for a project on linux, and so far I've been able to build without complaint, but the dynamic linking required by TBB has been a bit of an issue for only one of the libraries.

I'm using the CMake functions invoked like so:

    set(TBB_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/tbb)
    set(TBB_BUILD_DIR "tbb_build_dir=${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}")
    set(TBB_BUILD_PREFIX "tbb_build_prefix=tbb")

    include(${TBB_ROOT_DIR}/cmake/TBBBuild.cmake)
    
    tbb_build(TBB_ROOT ${TBB_ROOT_DIR} 
              MAKE_ARGS 
                  ${TBB_BUILD_DIR} 
                  ${TBB_BUILD_PREFIX} 
              CONFIG_DIR 
              TBB_DIR)

    find_package(TBB REQUIRED)

When running, I get the error:

    error while loading shared libraries: libtbbmalloc_debug.so.2: cannot open shared object file: No such file or directory

After Running `ldd <whatever_test_executable>` I get the following output

    linux-vdso.so.1 =>  (0x00007fff741b9000)

    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fd99a6fd000)

    libtbb_debug.so.2 => /home/mrbzapp/test_proj/build/Builds/lib/tbb_debug/libtbb_debug.so.2 (0x00007fd99a489000)

    libtbbmalloc_proxy_debug.so.2 => /home/mrbzapp/test_proj/build/Builds/lib/tbb_debug/libtbbmalloc_proxy_debug.so.2 (0x00007fd99a285000)

    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fd99a081000)

    libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007fd999dd4000)

    libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007fd999a99000)

    libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007fd999887000)

    librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fd99967f000)

    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fd9992f7000)

    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fd998fee000)

    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fd998dd7000)

    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fd998a0e000)

    /lib64/ld-linux-x86-64.so.2 (0x000055a935c16000)

    libtbbmalloc_debug.so.2 => not found

    libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fd9987f2000)

    libpng16.so.16 => /usr/lib/x86_64-linux-gnu/libpng16.so.16 (0x00007fd9985c0000)

    libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007fd99839e000)

    libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007fd998198000)

    libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007fd997f92000)

During build I can see that CMake (and TBB's `TBBBuild` function) is adding `/home/mrbzapp/test_proj/build/Builds/lib/tbb_debug/` to the `rpath`, and for most of the linked tbb libs they are using this path, but `libtbbmalloc_debug.so.2` is being left out in the cold and it's bringing the whole thing down with it.

What I find completely baffling is that `libtbbmalloc_debug.so.2` *does* exist, and exists alongside the other TBB libraries that *are* using the rpath set by TBB's functions.

What could I possibly be doing wrong, and what might I have to do in order to make sure all of these libraries are correctly linked at runtime and not just a handful?

[Alexey_M_Intel1]

Hello, M Z.

I was able to reproduce this problem, thank you for reporting it.
The problem is that libtbbmalloc_proxy_debug.so.2 can't find libtbbmalloc_debug.so.2
As a workaround I can propose you to "source /home/mrbzapp/test_proj/build/Builds/lib/tbb_debug/tbbvars.sh intel64" in your environment and after that execute your application.

We will notify you in this thread when we fix this problem in the Intel TBB library.