Change Unix Socket directory at build time

Hi,

I usualy change the unix_socket_directory in the server configuration but
I'd like to change it for good at build time. I read everywhere (here
<https://www.postgresql.org/docs/current/static/runtime-config-connection.html>
for example):
"unix_socket_directories (string)
The default value is normally /tmp, but that can be changed at build time."

Ok good but I've read ./configure --help and I cannot find how to do it.

Can anyone help me?

Regards
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Santiago DIEZ
Quark Systems & CAOBA
23 rue du Buisson Saint-Louis, 75010 Paris
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