From 71e0ce571b6fcd9a1a702c4198c9892b22b50fe7 Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Fri, 22 Apr 2016 11:52:15 +0200
Subject: [PATCH] csdp: fix build on Darwin

When the `INSTALL` file is present, `make` claims that the `install`
target is up-to-date.
---
 pkgs/applications/science/math/csdp/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/applications/science/math/csdp/default.nix b/pkgs/applications/science/math/csdp/default.nix
index 64fa4579949..67a0834c00d 100644
--- a/pkgs/applications/science/math/csdp/default.nix
+++ b/pkgs/applications/science/math/csdp/default.nix
@@ -15,6 +15,7 @@ stdenv.mkDerivation {
   '';
 
   preInstall = ''
+    rm -f INSTALL
     mkdir -p $out/bin
   '';