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Diffstat (limited to 'pkgs/development/libraries/zvbi/default.nix')
| -rw-r--r-- | pkgs/development/libraries/zvbi/default.nix | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/pkgs/development/libraries/zvbi/default.nix b/pkgs/development/libraries/zvbi/default.nix index 55a106b349e3..54de0c92816a 100644 --- a/pkgs/development/libraries/zvbi/default.nix +++ b/pkgs/development/libraries/zvbi/default.nix @@ -1,8 +1,8 @@ { pngSupport ? true , stdenv, fetchurl, x11, libpng ? null}: -assert !isNull x11; -assert pngSupport -> !isNull libpng; +assert x11 != null; +assert pngSupport -> libpng != null; derivation { name = "zvbi-0.2.5"; |