stdenv.lib -> lib

pkgs/openslide/default.nix

@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
     sed -i -e 's|AM_CONDITIONAL(\[WINDOWS_RESOURCES\], \[test x$RC != x\])|AM_CONDITIONAL([WINDOWS_RESOURCES], [false])|' configure.ac
   '';
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = http://openslide.org;
     description = "A C library that provides a simple interface to read whole-slide images.";
     platforms = platforms.all;