From 725c85c720d64fd686a34f12f3a2d3f995349926 Mon Sep 17 00:00:00 2001
From: taku0 <mxxouy6x3m_github@tatapa.org>
Date: Wed, 4 May 2016 19:57:43 +0900
Subject: [PATCH 1/3] lp_solve: fixed build error due to defining isnan

---
 pkgs/applications/science/math/lp_solve/default.nix |  7 ++++++-
 pkgs/applications/science/math/lp_solve/isnan.patch | 13 +++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/applications/science/math/lp_solve/isnan.patch

diff --git a/pkgs/applications/science/math/lp_solve/default.nix b/pkgs/applications/science/math/lp_solve/default.nix
index b92691cb611..733cab7a3ed 100644
--- a/pkgs/applications/science/math/lp_solve/default.nix
+++ b/pkgs/applications/science/math/lp_solve/default.nix
@@ -10,10 +10,16 @@ stdenv.mkDerivation rec {
     sha256 = "176c7f023mb6b8bfmv4rfqnrlw88lsg422ca74zjh19i2h5s69sq";
   };
 
+  patches = [ ./isnan.patch ];
+
   buildCommand = ''
     . $stdenv/setup
     tar xvfz $src
     (
+    cd lp_solve*
+    eval patchPhase
+    )
+    (
     cd lp_solve*/lpsolve55
     bash ccc
     mkdir -pv $out/lib
@@ -37,7 +43,6 @@ stdenv.mkDerivation rec {
     license     = licenses.gpl2Plus;
     maintainers = with maintainers; [ smironov ];
     platforms   = platforms.unix;
-    broken      = true;
   };
 
 }
diff --git a/pkgs/applications/science/math/lp_solve/isnan.patch b/pkgs/applications/science/math/lp_solve/isnan.patch
new file mode 100644
index 00000000000..bc1983d4423
--- /dev/null
+++ b/pkgs/applications/science/math/lp_solve/isnan.patch
@@ -0,0 +1,13 @@
+diff -u a/lp_lib.h b/lp_lib.h
+--- a/lp_lib.h	2016-05-04 19:45:15.753143720 +0900
++++ b/lp_lib.h	2016-05-04 19:53:59.536920722 +0900
+@@ -59,9 +59,6 @@
+ # if defined _WIN32 && !defined __GNUC__
+ #  define isnan _isnan
+ # endif
+-#if defined NOISNAN
+-# define isnan(x) FALSE
+-#endif
+ 
+ #define SETMASK(variable, mask)     variable |= mask
+ #define CLEARMASK(variable, mask)   variable &= ~(mask)

From 3fa49d5ac424d161baf5a5e952d9be0a803985ab Mon Sep 17 00:00:00 2001
From: taku0 <mxxouy6x3m_github@tatapa.org>
Date: Wed, 4 May 2016 22:03:22 +0900
Subject: [PATCH 2/3] lp_solve: updated description

---
 pkgs/applications/science/math/lp_solve/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/applications/science/math/lp_solve/default.nix b/pkgs/applications/science/math/lp_solve/default.nix
index 733cab7a3ed..796faec34e1 100644
--- a/pkgs/applications/science/math/lp_solve/default.nix
+++ b/pkgs/applications/science/math/lp_solve/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    description = "lp_solve is a Mixed Integer Linear Programming (MILP) solver";
+    description = "A Mixed Integer Linear Programming (MILP) solver";
     homepage    = "http://lpsolve.sourceforge.net";
     license     = licenses.gpl2Plus;
     maintainers = with maintainers; [ smironov ];

From f2bab58b3ef2506674ad92aadb2aa8b5058f265b Mon Sep 17 00:00:00 2001
From: taku0 <mxxouy6x3m_github@tatapa.org>
Date: Wed, 4 May 2016 22:17:37 +0900
Subject: [PATCH 3/3] lp_solve: change source URL to mirror

---
 pkgs/applications/science/math/lp_solve/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/applications/science/math/lp_solve/default.nix b/pkgs/applications/science/math/lp_solve/default.nix
index 796faec34e1..efa0c1751d4 100644
--- a/pkgs/applications/science/math/lp_solve/default.nix
+++ b/pkgs/applications/science/math/lp_solve/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   version = "5.5.2.0";
 
   src = fetchurl {
-    url = "http://sourceforge.net/projects/lpsolve/files/lpsolve/${version}/lp_solve_${version}_source.tar.gz";
+    url = "mirror://sourceforge/project/lpsolve/lpsolve/${version}/lp_solve_${version}_source.tar.gz";
     sha256 = "176c7f023mb6b8bfmv4rfqnrlw88lsg422ca74zjh19i2h5s69sq";
   };