1 files changed, 10 insertions, 3 deletions
diff --git a/nixpkgs/pkgs/development/libraries/fontconfig/make-fonts-conf.nix b/nixpkgs/pkgs/development/libraries/fontconfig/make-fonts-conf.nix
index cfe0a21e1d35..a03f7446b0ab 100644
--- a/nixpkgs/pkgs/development/libraries/fontconfig/make-fonts-conf.nix
+++ b/nixpkgs/pkgs/development/libraries/fontconfig/make-fonts-conf.nix
@@ -1,5 +1,11 @@
-{ runCommand, stdenv, lib, libxslt, fontconfig, dejavu_fonts, fontDirectories
-, impureFontDirectories ? [
+{ runCommand, stdenv, lib, libxslt, fontconfig, dejavu_fonts }:
+
+let fontconfig_ = fontconfig; in
+{
+  fontconfig ? fontconfig_
+  # an array of fonts, e.g. `[ pkgs.dejavu_fonts.minimal ]`
+,  fontDirectories
+  , impureFontDirectories ? [
     # nix user profile
     "~/.nix-profile/lib/X11/fonts" "~/.nix-profile/share/fonts"
   ]
@@ -11,7 +17,8 @@
   # darwin paths
   ++ lib.optionals stdenv.isDarwin [ "/Library/Fonts" "/System/Library/Fonts" ]
   # nix default profile
-  ++ [ "/nix/var/nix/profiles/default/lib/X11/fonts" "/nix/var/nix/profiles/default/share/fonts" ] }:
+  ++ [ "/nix/var/nix/profiles/default/lib/X11/fonts" "/nix/var/nix/profiles/default/share/fonts" ]
+}:
 
 runCommand "fonts.conf"
   {