<!-- DO NOT DELETE validate_template=true template_path=.github/ISSUE_TEMPLATE/--general-question.md --> ### [REQUIRED] Please fill in the following fields: * Pre-built SDK from the [website](https://firebase.google.com/download/cpp) or open-source from this repo: _____ * Firebase C++ SDK version: **_9.0.0____** * Main Firebase Components in concern: __App___ (Auth, Database, etc.) * Other Firebase Components in use: __Database___ (Auth, Database, etc.) * Platform you are using the C++ SDK on: __Ubuntu 18.04.6 LTS___ (Mac, Windows, or Linux) * Platform you are targeting: **_Desktop____** (iOS, Android, and/or desktop) ### [REQUIRED] Please describe the question here: I am building Firebase Sdk with WebRtc. while adding firebase App classes I am getting the following error. `home/webrtc/lib_webrtc/src/third_party/boringssl/src/ssl/ssl_lib.cc.o first defined here` `../firebase/libs/linux/x86_64/legacy/libfirebase_app.a(93f69bbf5771d4a5b72056dec59d993b_ssl_lib.cc.o): In function ssl_st::~ssl_st()':` `/home/runner/work/firebase-cpp-sdk/firebase-cpp-sdk/out-sdk/external/src/boringssl/src/ssl/ssl_lib.cc:655: multiple definition of ssl_st::~ssl_st()'` getting the same error for every function of `ssl_st` Stand-alone Both firebase SDK and Webrtc SDK are working fine, the above error arises upon integrating these two. here are my [CMakeLists.txt](https://github.com/firebase/firebase-cpp-sdk/files/8898645/CMakeLists.txt)