Upstream distributes psycopg-c with prebuilt binaries as psycopg-binar on PyPI.

--- a/psycopg/setup.py
+++ b/psycopg/setup.py
@@ -29,7 +29,7 @@ extras_require = {
     ],
     # Install the stand-alone C extension module
     "binary": [
-        f"psycopg-binary == {version}; implementation_name != 'pypy'",
+        f"psycopg-c == {version}; implementation_name != 'pypy'",  # XXX-Patched
     ],
     # Install the connection pool
     "pool": [
--- a/psycopg/psycopg/_cmodule.py
+++ b/psycopg/psycopg/_cmodule.py
@@ -16,8 +16,8 @@ if pq.__impl__ == "c":
     from psycopg_c import _psycopg as _psycopg
     from psycopg_c import __version__ as __version__  # noqa: F401
 elif pq.__impl__ == "binary":
-    from psycopg_binary import _psycopg as _psycopg  # type: ignore
-    from psycopg_binary import __version__ as __version__  # type: ignore  # noqa: F401
+    from psycopg_c import _psycopg as _psycopg  # type: ignore  # XXX-Patched: s/_binary/_c/
+    from psycopg_c import __version__ as __version__  # type: ignore  # noqa: F401  # XXX-Patched: s/_binary/_c/
 elif pq.__impl__ == "python":
     _psycopg = None  # type: ignore
 else: