Package: libmongoc-dev Version: 1.4.2-1+b1 (possible other versions too)
Ever I don't want to use the SSL I need to install libssl-dev to build packages that uses pkg-config to be builded with libmongoc-dev. If we look at the output of `pkg-config' we see no difference between `libmongoc-1.0' and `libmongoc-ssl-1.0' profiles. $ pkg-config --libs libmongoc-1.0 -lmongoc-1.0 -lssl -lcrypto -lrt -lbson-1.0 $ pkg-config --libs libmongoc-ssl-1.0 -lmongoc-1.0 -lssl -lcrypto -lrt -lbson-1.0 I suggest to remove -lssl and -lcrypto from `libmongoc-1.0' profile I am using Debian GNU/Linux 9.5, kernel 4.9.110-3+deb9u4 and libc6 2.24-11+deb9u3