Ioana, thanks for the help with libssl.
Also besides this package, need a 'pkg-config' that by default in Debian10 is not installed.
For spandsp the parameter approached '--with-spandsp=/usr/include/x86_64-linux-gnu', compiled fine, but I have not tested working capacity yet.
But with the package 'amrnb' I didn’t succeed. In the `libopencore-amrwb-dev ` that comes with Debian, there are no files (interf_rom.h libamrnb.so) that are looking for a configuration script.
Advise, please, how to connect amrnb.