[cpprestsdk] Cannot find dynamic library dependencies at runtime

[klalumiere]

Describe the bug
On Linux, cpprestsdk cannot find its dynamic libraries dependencies at runtime, like libboost_random.so.1.79.0.

Environment

• OS: Linux
• Compiler: clang version 10.0.0-4ubuntu1

To Reproduce
Steps to reproduce the behavior:

1. Add a dependency on qpid-proton in vcpkg.json:

           {
               "name": "cpprestsdk",
               "version>=": "2.10.18#1"
           }

2. Link on it.
3. Compile it with the triplet x64-linux-dynamic and run your program. At runtime, you'll see an error looking like error while loading shared libraries: libboost_random.so.1.79.0: cannot open shared object file: No such file or directory. You can use lddtree to confirm that the transitive dependency missing comes from cpprestsdk.

Expected behavior
No runtime error.

Failure logs
error while loading shared libraries: libboost_random.so.1.79.0: cannot open shared object file: No such file or directory

Additional context
It's a RUNPATH (RPATH) problem. I'll open a pull request in a few seconds.

[Osyotr]

#23035 is merged, so the linked doc is outdated. Please update your vcpkg instance and use VCPKG_FIXUP_ELF_RPATH flag

[klalumiere]

This work. Thanks a lot! 😃