qt48: fix evaluation error on Darwin

2016-03-11 09:10:10 -06:00 · 2016-03-11 09:10:10 -06:00 · 9e5b2d5e3d
commit 9e5b2d5e3d
parent cd5e923f55
1 changed files with 1 additions and 1 deletions
--- a/pkgs/development/libraries/qt-4.x/4.8/default.nix
+++ b/pkgs/development/libraries/qt-4.x/4.8/default.nix
@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
      ./libressl.patch
      (substituteAll {
        src = ./dlopen-absolute-paths.diff;
-        cups = cups.out;
+        cups = if cups != null then cups.out else null;
        icu = icu.out;
        libXfixes = libXfixes.out;
        glibc = stdenv.cc.libc.out;