darwin.diskdev_cmds: fix build with clang 16

Fix an implicit `int` on argc, which is an error with newer clangs.

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

@@ -5,12 +5,17 @@ let
   xnu-src = if stdenv.isAarch64 then macosPackages_11_0_1.xnu.src else xnu.src;
   arch = if stdenv.isAarch64 then "arm" else "i386";
 in appleDerivation {
+  patches = [
+    # Fixes a build failure with newer versions of clang that make implicit int an error.
+    ./fix-implicit-int.patch
+  ];
+
   nativeBuildInputs = [ xcbuildHook ];
   buildInputs = [ libutil ];
 
   env.NIX_CFLAGS_COMPILE = "-I.";
   NIX_LDFLAGS = "-lutil";
-  patchPhase = ''
+  prePatch = ''
     # ugly hacks for missing headers
     # most are bsd related - probably should make this a drv
     unpackFile ${Libc.src}

pkgs/os-specific/darwin/apple-source-releases/diskdev_cmds/fix-implicit-int.patch

@@ -0,0 +1,11 @@
+diff -ur a/diskdev_cmds.xcodeproj/project.pbxproj b/diskdev_cmds.xcodeproj/project.pbxproj
+--- a/quota.tproj/quota.c	2021-10-06 01:13:40.000000000 -0400
++++ b/quota.tproj/quota.c	2023-10-27 08:24:05.960965958 -0400
+@@ -115,6 +115,7 @@
+ 
+ int
+ main(argc, argv)
++	int argc;
+ 	char *argv[];
+ {
+ 	int ngroups;