Fix linking for python with external ncurses (spack#45803)

Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>

var/spack/repos/builtin/packages/python/package.py

@@ -641,10 +641,11 @@ def configure_args(self):
         else:
             config_args.append("--without-system-expat")
 
-        if "+ctypes" in spec:
-            config_args.append("--with-system-ffi")
-        else:
-            config_args.append("--without-system-ffi")
+        if self.version < Version("3.12.0"):
+            if "+ctypes" in spec:
+                config_args.append("--with-system-ffi")
+            else:
+                config_args.append("--without-system-ffi")
 
         if "+tkinter" in spec:
             config_args.extend(
@@ -668,6 +669,9 @@ def configure_args(self):
         if cflags:
             config_args.append("CFLAGS={0}".format(" ".join(cflags)))
 
+        if self.version >= Version("3.12.0") and sys.platform == "darwin":
+            config_args.append("CURSES_LIBS={0}".format(spec["ncurses"].libs.link_flags))
+
         return config_args
 
     def configure(self, spec, prefix):