Getting this error

[mac2net]

Hi
I am getting this error on an M2 MBA.
Cheers
Mike

`This file contains any messages produced by compilers etc while
running configure, to aid debugging if configure script makes a mistake.

configure
=== udns package
checking for C compiler
=== $CC (clang)
checking whenever C compiler (clang) is GNU CC
=== yes
checking whenever the C compiler (clang -Wall -W -O2 -pipe)
can produce executables
=== yes
checking for ranlib
=== ranlib
checking for getopt()
=== yes
checking for libraries needed for socket and connect
==== Command invocation failed. Command line was:
clang -Wall -W -O2 -pipe conftest.c -o conftest
==== compiler input was:
int main() { socket(); connect(); return 0; }
==== output was:
conftest.c:1:14: error: implicit declaration of function 'socket' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
int main() { socket(); connect(); return 0; }
^
conftest.c:1:24: error: implicit declaration of function 'connect' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
int main() { socket(); connect(); return 0; }
^
2 errors generated.
====
==== Command invocation failed. Command line was:
clang -Wall -W -O2 -pipe conftest.c -o conftest -lsocket -lnsl
==== compiler input was:
int main() { socket(); connect(); return 0; }
==== output was:
conftest.c:1:14: error: implicit declaration of function 'socket' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
int main() { socket(); connect(); return 0; }
^
conftest.c:1:24: error: implicit declaration of function 'connect' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
int main() { socket(); connect(); return 0; }
^
2 errors generated.
====
=== not found
=== FATAL: cannot find libraries needed for sockets
`