how to specify the libstdc++.so.6 to use

Question

I am trying to compile a program of mine, that needs C++11 features and a newer version of boost than is installed on the target machine. I therefore compiled and installed gcc 4.9 to some local directory (/secured/local) with an in-tree build of all dependencies and the binutils. I then downloaded boost 1.55 and ran ./boostrap.sh --prefix=/secured/local && ./b4 install to install boost. Both compilations worked fine and gcc -std=c++11 also works.

My program is built using cmake with the usual FindXX.cmake procedure of finding files. I am running cmake like this:

cmake ../source/ -DBOOST_ROOT=/secured/local -DCMAKE_EXE_LINKER_FLAGS='-Wl,-rpath,/secured/local/lib'

which successfully finds my new boost installation and the new version of gcc. Compilation and linking both work flawlessly. However, upon execution of my program I am getting the following errors:

$ ./surface
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by ./surface)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by ./surface)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by ./surface)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.19' not found (required by ./surface)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by /secured/local/lib/libconfig++.so.9)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by /secured/local/lib/libboost_program_options.so.1.55.0)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by /secured/local/lib/libboost_program_options.so.1.55.0)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /secured/local/lib/libboost_program_options.so.1.55.0)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /secured/local/lib/libboost_filesystem.so.1.55.0)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /secured/local/lib/libboost_regex.so.1.55.0)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.11' not found (required by /secured/local/lib/libboost_regex.so.1.55.0)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by /secured/local/lib/libboost_regex.so.1.55.0)
./surface: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.15' not found (required by /secured/local/lib/libboost_regex.so.1.55.0)

Running objdump on boost shows

objdump -x /secured/local/lib/libboost_program_options.so.1.55.0 | grep stdc++
  NEEDED               libstdc++.so.6
  required from libstdc++.so.6:

It appears as if both the boost libs try to use the old /usr/lib64/libstdc++.so.6 instead the new one in /secured/local/lib. What did I do wrong in my procedure?

Note, that I try to avoid setting the LD_LIBRARY_PATH somewhere.

Answer 1

Installing gcc puts a libstdc++.so.6 into both $PREXIF/lib and $PREFIX/lib64. Using the latter as RPATH for boost and my program solved the issue. Using only the former results in a fall-back to the system libstdc++.so.6.