Unable to build Janus ubuntu 22.04

Question

Unable to build Janus https://github.com/meetecho/janus-gateway in Ubuntu 22.04/

I had openssl 3.0.2 preinstalled in my system.

I built Janus using

sh autogen.sh 
./configure --prefix=/opt/janus 
make 

Got following error:

/usr/bin/ld: janus-dtls.o: undefined reference to symbol 'SSL_CTX_ctrl@@OPENSSL_3.0.0'
/usr/bin/ld: /lib/x86_64-linux-gnu/libssl.so.3: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status`

I need to build Janus in my Ubuntu 22.04

Answer 1

For the DSO missing (Dynamic linker), you need to add this to your build commands -lpthread.

For the undefined reference, it's either you completely forgot to add OpenSSL lib to your linking command, or the order is not correct.