From 6d928ab684327e0eeb1bf6cd889d57ca7127e8a7 Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Fri, 14 Dec 2012 13:36:04 -0500
Subject: [PATCH] Don't preserve timestamps when copying sources to the
 temporary build directory.

This should fix issues like "ZIP does not support timestamps before 1980"
---
 pkgs/stdenv/generic/setup.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/stdenv/generic/setup.sh b/pkgs/stdenv/generic/setup.sh
index 0e31c7a0f1e5..e30b0656e623 100644
--- a/pkgs/stdenv/generic/setup.sh
+++ b/pkgs/stdenv/generic/setup.sh
@@ -445,7 +445,7 @@ unpackFile() {
         *)
             if [ -d "$curSrc" ]; then
                 stripHash $curSrc
-                cp -prd $curSrc $strippedName
+                cp -prd --no-preserve=timestamps $curSrc $strippedName
             else
                 if [ -z "$unpackCmd" ]; then
                     echo "source archive $curSrc has unknown type"