diff --git a/pkgs/development/libraries/glibc/locales.nix b/pkgs/development/libraries/glibc/locales.nix
index 6edbb6837b58..d47af97f191f 100644
--- a/pkgs/development/libraries/glibc/locales.nix
+++ b/pkgs/development/libraries/glibc/locales.nix
@@ -1,90 +1,101 @@
-/* This function builds just the `lib/locale/locale-archive' file from
-   Glibc and nothing else.  If `allLocales' is true, all supported
-   locales are included; otherwise, just the locales listed in
-   `locales'.  See localedata/SUPPORTED in the Glibc source tree for
-   the list of all supported locales:
-   https://sourceware.org/git/?p=glibc.git;a=blob;f=localedata/SUPPORTED
+/*
+  This function builds just the `lib/locale/locale-archive' file from
+  Glibc and nothing else.  If `allLocales' is true, all supported
+  locales are included; otherwise, just the locales listed in
+  `locales'.  See localedata/SUPPORTED in the Glibc source tree for
+  the list of all supported locales:
+  https://sourceware.org/git/?p=glibc.git;a=blob;f=localedata/SUPPORTED
 */
 
-{ lib, stdenv, buildPackages, callPackage, writeText, glibc
-, allLocales ? true, locales ? [ "en_US.UTF-8/UTF-8" ]
-, linuxHeaders, withLinuxHeaders ? !stdenv.cc.isGNU
+{
+  lib,
+  stdenv,
+  buildPackages,
+  callPackage,
+  writeText,
+  glibc,
+  allLocales ? true,
+  locales ? [ "en_US.UTF-8/UTF-8" ],
+  linuxHeaders,
+  withLinuxHeaders ? !stdenv.cc.isGNU,
 }:
 
-(callPackage ./common.nix ({ inherit stdenv; } // lib.optionalAttrs withLinuxHeaders {
-  inherit linuxHeaders;
-}) {
-  pname = "glibc-locales";
-  extraNativeBuildInputs = [ glibc ];
-  inherit withLinuxHeaders;
-}).overrideAttrs(finalAttrs: previousAttrs: {
+(callPackage ./common.nix
+  ({ inherit stdenv; } // lib.optionalAttrs withLinuxHeaders { inherit linuxHeaders; })
+  {
+    pname = "glibc-locales";
+    extraNativeBuildInputs = [ glibc ];
+    inherit withLinuxHeaders;
+  }
+).overrideAttrs
+  (
+    finalAttrs: previousAttrs: {
 
-  builder = ./locales-builder.sh;
+      builder = ./locales-builder.sh;
 
-  outputs = [ "out" ];
+      outputs = [ "out" ];
 
-  LOCALEDEF_FLAGS = [
-    (if stdenv.hostPlatform.isLittleEndian
-    then "--little-endian"
-    else "--big-endian")
-  ];
+      LOCALEDEF_FLAGS = [
+        (if stdenv.hostPlatform.isLittleEndian then "--little-endian" else "--big-endian")
+      ];
 
-  preBuild = (previousAttrs.preBuild or "") + ''
-      # Awful hack: `localedef' doesn't allow the path to `locale-archive'
-      # to be overriden, but you *can* specify a prefix, i.e. it will use
-      # <prefix>/<path-to-glibc>/lib/locale/locale-archive.  So we use
-      # $TMPDIR as a prefix, meaning that the locale-archive is placed in
-      # $TMPDIR/nix/store/...-glibc-.../lib/locale/locale-archive.
-      LOCALEDEF_FLAGS+=" --prefix=$TMPDIR"
+      preBuild =
+        (previousAttrs.preBuild or "")
+        + ''
+          # Awful hack: `localedef' doesn't allow the path to `locale-archive'
+          # to be overriden, but you *can* specify a prefix, i.e. it will use
+          # <prefix>/<path-to-glibc>/lib/locale/locale-archive.  So we use
+          # $TMPDIR as a prefix, meaning that the locale-archive is placed in
+          # $TMPDIR/nix/store/...-glibc-.../lib/locale/locale-archive.
+          LOCALEDEF_FLAGS+=" --prefix=$TMPDIR"
 
-      mkdir -p $TMPDIR/"${buildPackages.glibc.out}/lib/locale"
+          mkdir -p $TMPDIR/"${buildPackages.glibc.out}/lib/locale"
 
-      echo 'C.UTF-8/UTF-8 \' >> ../glibc-2*/localedata/SUPPORTED
+          echo 'C.UTF-8/UTF-8 \' >> ../glibc-2*/localedata/SUPPORTED
 
-      # Hack to allow building of the locales (needed since glibc-2.12)
-      sed -i -e 's,^$(rtld-prefix) $(common-objpfx)locale/localedef,localedef $(LOCALEDEF_FLAGS),' ../glibc-2*/localedata/Makefile
-    ''
-      + lib.optionalString (!allLocales) ''
-      # Check that all locales to be built are supported
-      echo -n '${lib.concatMapStrings (s: s + " \\\n") locales}' \
-        | sort -u > locales-to-build.txt
-      cat ../glibc-2*/localedata/SUPPORTED | grep ' \\' \
-        | sort -u > locales-supported.txt
-      comm -13 locales-supported.txt locales-to-build.txt \
-        > locales-unsupported.txt
-      if [[ $(wc -c locales-unsupported.txt) != "0 locales-unsupported.txt" ]]; then
-        cat locales-supported.txt
-        echo "Error: unsupported locales detected:"
-        cat locales-unsupported.txt
-        echo "You should choose from the list above the error."
-        false
-      fi
+          # Hack to allow building of the locales (needed since glibc-2.12)
+          sed -i -e 's,^$(rtld-prefix) $(common-objpfx)locale/localedef,localedef $(LOCALEDEF_FLAGS),' ../glibc-2*/localedata/Makefile
+        ''
+        + lib.optionalString (!allLocales) ''
+          # Check that all locales to be built are supported
+          echo -n '${lib.concatMapStrings (s: s + " \\\n") locales}' \
+            | sort -u > locales-to-build.txt
+          cat ../glibc-2*/localedata/SUPPORTED | grep ' \\' \
+            | sort -u > locales-supported.txt
+          comm -13 locales-supported.txt locales-to-build.txt \
+            > locales-unsupported.txt
+          if [[ $(wc -c locales-unsupported.txt) != "0 locales-unsupported.txt" ]]; then
+            cat locales-supported.txt
+            echo "Error: unsupported locales detected:"
+            cat locales-unsupported.txt
+            echo "You should choose from the list above the error."
+            false
+          fi
 
-      echo SUPPORTED-LOCALES='${toString locales}' > ../glibc-2*/localedata/SUPPORTED
-    '';
+          echo SUPPORTED-LOCALES='${toString locales}' > ../glibc-2*/localedata/SUPPORTED
+        '';
 
-  # Current `nixpkgs` way of building locales is not compatible with
-  # parallel install. `locale-archive` is updated in parallel with
-  # multiple `localedef` processes and causes non-deterministic result:
-  #   https://github.com/NixOS/nixpkgs/issues/245360
-  enableParallelBuilding = false;
+      # Current `nixpkgs` way of building locales is not compatible with
+      # parallel install. `locale-archive` is updated in parallel with
+      # multiple `localedef` processes and causes non-deterministic result:
+      #   https://github.com/NixOS/nixpkgs/issues/245360
+      enableParallelBuilding = false;
 
-  makeFlags = (previousAttrs.makeFlags or []) ++ [
-    "localedata/install-locales"
-    "localedir=${builtins.placeholder "out"}/lib/locale"
-  ];
+      makeFlags = (previousAttrs.makeFlags or [ ]) ++ [
+        "localedata/install-locales"
+        "localedir=${builtins.placeholder "out"}/lib/locale"
+      ];
 
-  installPhase =
-    ''
-      mkdir -p "$out/lib/locale" "$out/share/i18n"
-      cp -v "$TMPDIR/$NIX_STORE/"*"/lib/locale/locale-archive" "$out/lib/locale"
-      cp -v ../glibc-2*/localedata/SUPPORTED "$out/share/i18n/SUPPORTED"
-    '';
+      installPhase = ''
+        mkdir -p "$out/lib/locale" "$out/share/i18n"
+        cp -v "$TMPDIR/$NIX_STORE/"*"/lib/locale/locale-archive" "$out/lib/locale"
+        cp -v ../glibc-2*/localedata/SUPPORTED "$out/share/i18n/SUPPORTED"
+      '';
 
-  setupHook = writeText "locales-setup-hook.sh"
-    ''
-      export LOCALE_ARCHIVE=@out@/lib/locale/locale-archive
-    '';
+      setupHook = writeText "locales-setup-hook.sh" ''
+        export LOCALE_ARCHIVE=@out@/lib/locale/locale-archive
+      '';
 
-  meta.description = "Locale information for the GNU C Library";
-})
+      meta.description = "Locale information for the GNU C Library";
+    }
+  )