The unzip Nixpkgs expression does not build with the NLS attribute
selected because the patch conditionally applied conflicts with the
earlier patch [dont-hardcode-cc.patch].
The attached patch fixes the build by increasing the patch fuzz to the
size of the context.
>From 67ebd468d2780affe6653081
The attached patch fixes the build of the re2c Nixpkgs expression by
adjusting the sourceRoot to account for the unpackFile treatment of a
directory.
>From 39acc883cca970653b7b2fa5ed1c4630b11a1e9d Mon Sep 17 00:00:00 2001
From: Karn Kallio
Date: Sat, 8 Jul 2017 21:32:17 -0400
Subject: [PATCH] re2