OpenConnect compile failing on socket()

[rv at rvsmith.co.uk]

Hello,

I am struggling to compile this. Config.log attached. I think I have  
all the dependencies but it fails to find socket().

checking for socket... no
checking for socket in -lsocket... no
configure: error: Cannot find socket() function

This is on TinyCore CorePure64 8.2. I love the elegant minimalism of  
this distro but have found before that it sometimes lacks stuff that  
nobody even bothers to list as a dependency because they just assume  
it will be there. Can you please advise how I can get past this error.

Regards,
Harvey Smith