Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: fontconfig 0 -> 1
attrpath: fontconfig
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/japc4gb54cb3b92w3xwhcxj0yzvcl03s-packages.json.drv
building '/nix/store/japc4gb54cb3b92w3xwhcxj0yzvcl03s-packages.json.drv'...

Going to be running update for following packages:
 - fontconfig-2.17.1

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - fontconfig-2.17.1: UPDATING ...
 - fontconfig-2.17.1: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/development/libraries/fontconfig/default.nix b/pkgs/development/libraries/fontconfig/default.nix
index dee1e197dd6e..9e4c1fb36057 100644
--- a/pkgs/development/libraries/fontconfig/default.nix
+++ b/pkgs/development/libraries/fontconfig/default.nix
@@ -17,7 +17,7 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "fontconfig";
-  version = "2.17.1";
+  version = "2.18.1";
 
   outputs = [
     "bin"
@@ -30,7 +30,7 @@ stdenv.mkDerivation (finalAttrs: {
   # ref: https://github.com/NixOS/nixpkgs/pull/401037#discussion_r2055430206
   src = fetchurl {
     url = "https://gitlab.freedesktop.org/api/v4/projects/890/packages/generic/fontconfig/${finalAttrs.version}/fontconfig-${finalAttrs.version}.tar.xz";
-    hash = "sha256-n1yuk/T//B+8Ba6ZzfxwjNYN/WYS/8BRKCcCXAJvpUE=";
+    hash = "sha256-IwDz2/pyU7OkT0/uzbyN+kXd5dws+3H86vMfOUy0EDE=";
   };
 
   nativeBuildInputs = [

An auto update branch exists with message `fontconfig: 2.17.1 -> 2.18.0`. New version is 2.18.1.
The auto update branch does not match or exceed the new version.
Successfully finished processing
Automatic update generated by [nixpkgs-update](https://github.com/nix-community/nixpkgs-update) tools. This update was made based on information from passthru.updateScript.

meta.description for fontconfig is: Library for font customization and configuration

meta.homepage for fontconfig is: http://fontconfig.org/




###### Updates performed
- Ran passthru.UpdateScript

###### To inspect upstream changes





###### Impact

<b>Checks done</b>

---

- built on NixOS
- The tests defined in `passthru.tests`, if any, passed
- found 2.18.1 with grep in /nix/store/wriazcrg2b8ijr5z7g7pz56icj9p6c9a-fontconfig-2.18.1-bin
- found 2.18.1 in filename of file in /nix/store/wriazcrg2b8ijr5z7g7pz56icj9p6c9a-fontconfig-2.18.1-bin

---

<details>
<summary>
<b>Rebuild report</b> (if merged into master) (click to expand)
</summary>

```
23157 total rebuild path(s)

23157 package rebuild(s)

First fifty rebuilds by attrpath

CuboCore.coreaction
CuboCore.corearchiver
CuboCore.corefm
CuboCore.coregarage
CuboCore.corehunt
CuboCore.coreimage
CuboCore.coreinfo
CuboCore.corekeyboard
CuboCore.corepad
CuboCore.corepaint
CuboCore.corepdf
CuboCore.corepins
CuboCore.corerenamer
CuboCore.coreshot
CuboCore.corestats
CuboCore.corestuff
CuboCore.coreterminal
CuboCore.coretime
CuboCore.coretoppings
CuboCore.coreuniverse
CuboCore.libcprime
CuboCore.libcsys
DisnixWebService
LycheeSlicer
MMA
OVMF
OVMF-cloud-hypervisor
OVMF-xen
OVMFFull
R
SDL
SDL2
SDL2_Pango
SDL2_gfx
SDL2_image
SDL2_mixer
SDL2_net
SDL2_sound
SDL2_ttf
SDL_Pango
SDL_audiolib
SDL_compat
SDL_gfx
SDL_image
SDL_mixer
SDL_net
SDL_sound
SDL_stretch
SDL_ttf
```

</details>

<details>
<summary>
<b>Instructions to test this update</b> (click to expand)
</summary>

---

Either **download from the cache**:
```
nix-store -r /nix/store/wriazcrg2b8ijr5z7g7pz56icj9p6c9a-fontconfig-2.18.1-bin \
  --option binary-caches 'https://cache.nixos.org/ https://nixpkgs-update-cache.nix-community.org/' \
  --option trusted-public-keys '
  nixpkgs-update-cache.nix-community.org-1:U8d6wiQecHUPJFSqHN9GSSmNkmdiFW7GW7WNAnHW0SM=
  cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
  '
```
(The nixpkgs-update cache is only trusted for this store-path realization.)
For the cached download to work, your user must be in the `trusted-users` list or you can use `sudo` since root is effectively trusted.

Or, **build yourself**:
```
nix-build -A fontconfig https://github.com/r-ryantm/nixpkgs/archive/a630049d801392ad6e30bf7280b5e73d998fcb45.tar.gz
```
Or:
```
nix build github:r-ryantm/nixpkgs/a630049d801392ad6e30bf7280b5e73d998fcb45#fontconfig
```

After you've downloaded or built it, look at the files and if there are any, run the binaries:
```
ls -la /nix/store/wriazcrg2b8ijr5z7g7pz56icj9p6c9a-fontconfig-2.18.1-bin
ls -la /nix/store/wriazcrg2b8ijr5z7g7pz56icj9p6c9a-fontconfig-2.18.1-bin/bin
```

---

</details>
<br/>



### Pre-merge build results

Nixpkgs review skipped

---

###### Maintainer pings

cc @jtojnar for [testing](https://github.com/nix-community/nixpkgs-update/blob/main/doc/nixpkgs-maintainer-faq.md#r-ryantm-opened-a-pr-for-my-package-what-do-i-do).

> [!TIP]
> As a maintainer, if your package is located under `pkgs/by-name/*`, you can comment **`@NixOS/nixpkgs-merge-bot merge`** to automatically merge this update using the [`nixpkgs-merge-bot`](https://github.com/NixOS/nixpkgs/blob/master/ci/README.md#nixpkgs-merge-bot).
Updated existing PR
https://api.github.com/repos/NixOS/nixpkgs/pulls/524903