···

       
3
       
3
       
 
       
assert !(stdenv ? cross) -> zlib != null;

     

       
4
       
4
       
 
       


     

       
5
       
5
       
 
       
stdenv.mkDerivation rec {

     

       
6
       
6
       
-
       
  name = "libpng-1.2.54";

     

       
6
       
6
       
+
       
  name = "libpng-1.2.55";

     

       
7
       
7
       
 
       


     

       
8
       
8
       
 
       
  src = fetchurl {

     

       
9
       
9
       
 
       
    url = "mirror://sourceforge/libpng/${name}.tar.xz";

     

       
10
       
10
       
-
       
    sha256 = "0wnjy7gqn0f24qrlggs7kl0ij59by413j1xmqp12n3vqh9j531fg";

     

       
10
       
10
       
+
       
    sha256 = "0zkra0b9lrpk2axassdgkqinmc2ba6b473sm52xbpyknaqs2fljy";

     

       
11
       
11
       
 
       
  };

     

       
12
       
12
       
 
       


     

       
13
       
13
       
 
       
  propagatedBuildInputs = [ zlib ];