From 3ecad270323a6f05879be9786579da6dd4ed91c3 Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Wed, 2 May 2018 13:24:27 -0500
Subject: [PATCH] ltrace: fix warnings and bugs using patches from debian

For details on the patches applied, see:

https://sources.debian.org/patches/ltrace/0.7.3-6/

Disabling '-Werror' may be a problem in the future again,
but for now keep things simple now that they're fixed.
---
 pkgs/development/tools/misc/ltrace/default.nix | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/tools/misc/ltrace/default.nix b/pkgs/development/tools/misc/ltrace/default.nix
index 66fbed514dc..15eac37a53a 100644
--- a/pkgs/development/tools/misc/ltrace/default.nix
+++ b/pkgs/development/tools/misc/ltrace/default.nix
@@ -10,10 +10,14 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ elfutils libunwind ];
 
-  preConfigure =
-    ''
-      configureFlags="--disable-werror"
-      makeFlagsArray=(INSTALL="install -c")
+  prePatch = let
+      debian = fetchurl {
+        url = mirror://debian/pool/main/l/ltrace/ltrace_0.7.3-6.debian.tar.xz;
+        sha256 = "0xc4pfd8qw53crvdxr29iwl8na53zmknca082kziwpvlzsick4kp";
+      };
+    in ''
+      tar xf '${debian}'
+      patches="$patches $(cat debian/patches/series | sed 's|^|debian/patches/|')"
     '';
 
   meta = with stdenv.lib; {