GRPC borring ssl and openssl linking problem

[raghvendr...@gmail.com]

In my project, i am already using openssl 1.1.1g version. for my new requirement i need to use GRPC library which internally use boringSSL. When i build GRPC library and link to my project then i am getting some undefind symbol and multiple definition of ssl symbols. For my requirement , i need to use boring ssl, i can not use GRPC with existing openssl. How to avoid symbol conflict ? 

My GRPC library version is 1.31.0 and using Linux server. 

while building GRPC i tried to use -DBORINGSSL_PREFIX=grpc and -DBORINGSSL_PREFIX_SYMBOLS=/home/GRPC/symbol.txt but symbol of boring ssl are not getting changed.Even in Grpc build file i have mentioned -fvisibilty=hidden in CFLAG but problem still there.