Recommendation for configure.ac fix

I've just started hacking on wine.

I've found a case of Solaris supporting the getaddrinfo function call that is 
tested in configure (via configure.ac) but I need to add specific libraries to 
the test. However, I don't think it's a good idea to overload the LIBS variable
for all the functions that are being tested in that sequence. (though that 
fixed the issue for me)

Can someone recommend the right way I should modify configure.ac?

Thanks,

Ben