This file provide basic guide for building TDLib binary on CentOS 7.5.

Procedure can be done easily inside a Docker container:

docker run -it -v /tmp:/tmp centos:7.5.1804 bash

yum -y update yum -y install git perl make which gperf readline-devel zlib-devel

curl -JOL https://cmake.org/files/v3.11/cmake-3.11.4-Linux-x86_64.sh chmod +x cmake-3.11.4-Linux-x86_64.sh ./cmake-3.11.4-Linux-x86_64.sh --skip-license --prefix=/usr rm -f cmake-3.11.4-Linux-x86_64.sh

yum -y install centos-release-scl devtoolset-7-gcc-c++ scl enable devtoolset-7 bash

curl -JOL https://www.openssl.org/source/openssl-1.1.0h.tar.gz tar -xzf openssl-1.1.0h.tar.gz rm -f openssl-1.1.0h.tar.gz cd openssl-1.1.0h ./config --prefix=/usr/local/openssl ./config -t make install ln -s /usr/local/openssl/lib/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1 ln -s /usr/local/openssl/lib/libssl.so.1.1 /usr/lib64/libssl.so.1.1 ldd /usr/local/openssl/bin/openssl PATH=$PATH:/usr/local/openssl/bin which openssl && openssl version

curl -JOL https://zlib.net/zlib-1.2.11.tar.gz tar -xzf zlib-1.2.11.tar.gz rm -f zlib-1.2.11.tar.gz cd zlib-1.2.11 ./configure --prefix=/usr/local/zlib make && make install

git clone https://github.com/tdlib/td.git cd td mkdir build cd build cmake -DCMAKE_BUILD_TYPE=Release -DOPENSSL_ROOT_DIR=/usr/local/openssl .. cmake --build . cp libtdjson.so /tmp

Now you have the binary built, copy it to your tglib server from /tmp folder

Install OpenSSL same as above for your CentOS 7.5 server where tglib run on.

curl -JOL https://www.openssl.org/source/openssl-1.1.0h.tar.gz tar -xzf openssl-1.1.0h.tar.gz rm -f openssl-1.1.0h.tar.gz cd openssl-1.1.0h ./config --prefix=/usr/local/openssl ./config -t make install ln -s /usr/local/openssl/lib/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1 ln -s /usr/local/openssl/lib/libssl.so.1.1 /usr/lib64/libssl.so.1.1 ldd /usr/local/openssl/bin/openssl PATH=$PATH:/usr/local/openssl/bin which openssl && openssl version