treewide: name -> pname

pkgs/os-specific/windows/libgnurx/default.nix

@@ -3,9 +3,10 @@
 let
   version = "2.5.1";
 in stdenv.mkDerivation rec {
-  name = "libgnurx-${version}";
+  pname = "libgnurx";
+  inherit version;
   src = fetchurl {
-    url = "mirror://sourceforge/mingw/Other/UserContributed/regex/mingw-regex-${version}/mingw-${name}-src.tar.gz";
+    url = "mirror://sourceforge/mingw/Other/UserContributed/regex/mingw-regex-${version}/mingw-${pname}-${version}-src.tar.gz";
     sha256 = "0xjxcxgws3bblybw5zsp9a4naz2v5bs1k3mk8dw00ggc0vwbfivi";
   };
 

pkgs/os-specific/windows/mingw-w64/default.nix

@@ -3,7 +3,8 @@
 let
   version = "5.0.4";
 in stdenv.mkDerivation {
-  name = "mingw-w64-${version}";
+  pname = "mingw-w64";
+  inherit version;
 
   src = fetchurl {
     url = "mirror://sourceforge/mingw-w64/mingw-w64-v${version}.tar.bz2";

pkgs/os-specific/windows/pthread-w32/default.nix

@@ -1,7 +1,7 @@
 { stdenv, fetchzip }:
 
 stdenv.mkDerivation rec {
-  name = "pthreads-w32-${version}";
+  pname = "pthreads-w32";
   version = "2.9.1";
 
   src = fetchzip {