From 066614a526a5c94ff48e8e4efb5b41192aa1d405 Mon Sep 17 00:00:00 2001
From: Timo Kaufmann <timokau@zoho.com>
Date: Sun, 16 Dec 2018 00:10:33 +0100
Subject: [PATCH] pythonPackages.graph-tool: fix build (#52261)

The new version of cgal introduced in #47826 requires a patch (that will
be included in the next graph-tool version).

Fixes #50446
---
 .../python-modules/graph-tool/2.x.x.nix       | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/python-modules/graph-tool/2.x.x.nix b/pkgs/development/python-modules/graph-tool/2.x.x.nix
index cd8f7c0c91ba..7c83039ecdb9 100644
--- a/pkgs/development/python-modules/graph-tool/2.x.x.nix
+++ b/pkgs/development/python-modules/graph-tool/2.x.x.nix
@@ -1,7 +1,9 @@
-{ stdenv, fetchurl, python, cairomm, sparsehash, pycairo, autoreconfHook,
-pkgconfig, boost, expat, scipy, cgal, gmp, mpfr,
-gobject-introspection, pygobject3, gtk3, matplotlib, ncurses,
-buildPythonPackage }:
+{ stdenv, fetchurl, python, cairomm, sparsehash, pycairo, autoreconfHook
+, pkgconfig, boost, expat, scipy, cgal, gmp, mpfr
+, gobject-introspection, pygobject3, gtk3, matplotlib, ncurses
+, buildPythonPackage
+, fetchpatch
+}:
 
 buildPythonPackage rec {
   pname = "graph-tool";
@@ -20,6 +22,15 @@ buildPythonPackage rec {
     sha256 = "0w7pd2h8ayr88kjl82c8fdshnk6f3xslc77gy7ma09zkbvf76qnz";
   };
 
+  patches = [
+    # fix build with cgal 4.13 (https://git.skewed.de/count0/graph-tool/issues/509)
+    (fetchpatch {
+      name = "cgal-4.13.patch";
+      url = "https://git.skewed.de/count0/graph-tool/commit/aa39e4a6b42d43fac30c841d176c75aff92cc01a.patch";
+      sha256 = "1578inb4jqwq2fhhwscn5z95nzmaxvmvk30nzs5wirr26iznap4m";
+    })
+  ];
+
   configureFlags = [
     "--with-python-module-path=$(out)/${python.sitePackages}"
     "--with-boost-libdir=${boost}/lib"