cm_unicode: use installFonts (#496050)

pkgs/by-name/cm/cm_unicode/package.nix

@@ -2,22 +2,24 @@
   lib,
   stdenvNoCC,
   fetchurl,
+  installFonts,
 }:
 
-stdenvNoCC.mkDerivation rec {
+stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "cm-unicode";
   version = "0.7.0";
 
   src = fetchurl {
-    url = "mirror://sourceforge/cm-unicode/cm-unicode/${version}/${pname}-${version}-otf.tar.xz";
+    url = "mirror://sourceforge/cm-unicode/cm-unicode/${finalAttrs.version}/cm-unicode-${finalAttrs.version}-otf.tar.xz";
     hash = "sha256-VIp+vk1IYbEHW15wMrfGVOPqg1zBZDpgFx+jlypOHCg=";
   };
 
-  installPhase = ''
+  nativeBuildInputs = [ installFonts ];
+
+  InstallPhase = ''
     runHook preInstall
 
-    install -m444 -Dt $out/share/fonts/opentype *.otf
-    install -m444 -Dt $out/share/doc/${pname}-${version}    README FontLog.txt
+    install -m444 -Dt $out/share/doc/$cm-unicode-${finalAttrs.version}    README FontLog.txt
 
     runHook postInstall
   '';
@@ -32,4 +34,4 @@ stdenvNoCC.mkDerivation rec {
     license = lib.licenses.ofl;
     platforms = lib.platforms.all;
   };
-}
+})