diff --git a/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/meson.build.in b/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/meson.build.in
index 2c6b9ca720a0..ad9c49cd6d3c 100644
--- a/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/meson.build.in
+++ b/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/meson.build.in
@@ -78,3 +78,15 @@ executable(
     sources : [ 'unifdef/unifdef.c' ],
 )
 install_man('unifdef/unifdef.1')
+
+install_data(
+    'unifdef/unifdefall.sh',
+    install_dir : get_option('bindir'),
+    install_mode : 'r-xr-xr-x',
+    rename : 'unifdefall',
+)
+install_symlink(
+    'unifdefall.1',
+    install_dir : get_option('mandir') / 'man1',
+    pointing_to : 'unifdef.1',
+)
diff --git a/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/package.nix b/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/package.nix
index adb16f58652c..4de6fb9938e6 100644
--- a/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/package.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/package.nix
@@ -14,7 +14,7 @@ mkAppleDerivation {
     "man"
   ];
 
-  xcodeHash = "sha256-oE1GJF/M4vXLTM7BBjezKqrMu9iTUlEKDBKgwyFqu3k=";
+  xcodeHash = "sha256-NurkF9AnPuaQ7Ev36PCknuTNV6z622yFi2bXZsow+xA=";
 
   postPatch = ''
     substituteInPlace rpcgen/rpc_main.c \
diff --git a/pkgs/os-specific/darwin/apple-source-releases/versions.json b/pkgs/os-specific/darwin/apple-source-releases/versions.json
index aba76661f6a2..df358bc6e9d2 100644
--- a/pkgs/os-specific/darwin/apple-source-releases/versions.json
+++ b/pkgs/os-specific/darwin/apple-source-releases/versions.json
@@ -36,8 +36,8 @@
     "version": "213.40.2"
   },
   "developer_cmds": {
-    "hash": "sha256-rgmmPHxlKPb84BHVs8oY99E8iGWbqEjS4B8H7+JK7NY=",
-    "version": "79"
+    "hash": "sha256-jgQUjN9zmqi0/7XpqzbRsJjZIYeMrxXT1Zf3qi7+o+8=",
+    "version": "83"
   },
   "diskdev_cmds": {
     "hash": "sha256-TebggzBS/HwEP3W2w2p+XvPDxsQtdTbtKEn9wik653Q=",