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-rw-r--r--pkgs/development/interpreters/python/2.7/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/development/interpreters/python/2.7/default.nix b/pkgs/development/interpreters/python/2.7/default.nix
index 4ba380436bbe..1c8ae0cf171a 100644
--- a/pkgs/development/interpreters/python/2.7/default.nix
+++ b/pkgs/development/interpreters/python/2.7/default.nix
@@ -30,7 +30,7 @@ let
       ./nix-store-mtime.patch
     ];
 
-  postPatch = ''
+  postPatch = stdenv.lib.optionalString (stdenv.gcc.libc != null) ''
     substituteInPlace ./Lib/plat-generic/regen \
                       --replace /usr/include/netinet/in.h \
                                 ${stdenv.gcc.libc}/include/netinet/in.h