python27: add override to build statically

pkgs/development/interpreters/python/cpython/2.7/default.nix

@@ -22,6 +22,7 @@
 , sourceVersion
 , sha256
 , passthruFun
+, static ? false
 }:
 
 assert x11Support -> tcl != null
@@ -164,7 +165,8 @@ let
   ]
     # Never even try to use lchmod on linux,
     # don't rely on detecting glibc-isms.
-  ++ optional stdenv.hostPlatform.isLinux "ac_cv_func_lchmod=no";
+  ++ optional stdenv.hostPlatform.isLinux "ac_cv_func_lchmod=no"
+  ++ optional static "LDFLAGS=-static";
 
   buildInputs =
     optional (stdenv ? cc && stdenv.cc.libc != null) stdenv.cc.libc ++

pkgs/top-level/static.nix

@@ -161,4 +161,6 @@ in {
     };
   };
 
+  python27 = super.python27.override { static = true; };
+
 }