darwin.text_cmds: fix build with clang 16

pkgs/os-specific/darwin/apple-source-releases/text_cmds/default.nix

···
     done
   '';
 
-  env.NIX_CFLAGS_COMPILE = toString [ "-Wno-error=format-security" ]; # hardeningDisable doesn't cut it
+  env.NIX_CFLAGS_COMPILE = toString [
+    # hardeningDisable doesn't cut it
+    "-Wno-error=format-security"
+    # Required to build with clang 16
+    "-Wno-error=deprecated-non-prototype"
+  ];
 
   meta = {
     platforms = lib.platforms.darwin;