From 92a7e9f4284a9141aeedda4c3f736927254d5340 Mon Sep 17 00:00:00 2001
From: David Seifert <soap@gentoo.org>
Date: Wed, 13 Apr 2016 21:06:01 +0200
Subject: [PATCH] dev-libs/boost: Add patch for ptr registration in
 libboost_python

Gentoo-Bug: 579616

Package-Manager: portage-2.2.28
---
 dev-libs/boost/boost-1.60.0.ebuild            |  1 +
 .../boost-1.60.0-auto-pointer-python.patch    | 42 +++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 dev-libs/boost/files/boost-1.60.0-auto-pointer-python.patch

diff --git a/dev-libs/boost/boost-1.60.0.ebuild b/dev-libs/boost/boost-1.60.0.ebuild
index c8bf2accdd25..ab69ac9e961d 100644
--- a/dev-libs/boost/boost-1.60.0.ebuild
+++ b/dev-libs/boost/boost-1.60.0.ebuild
@@ -52,6 +52,7 @@ PATCHES=(
 	"${FILESDIR}/${PN}-1.55.0-context-x32.patch"
 	"${FILESDIR}/${PN}-1.56.0-build-auto_index-tool.patch"
 	"${FILESDIR}/${PN}-1.60.0-deprecated-header-ice_not.patch"
+	"${FILESDIR}/${PN}-1.60.0-auto-pointer-python.patch"
 )
 
 python_bindings_needed() {
diff --git a/dev-libs/boost/files/boost-1.60.0-auto-pointer-python.patch b/dev-libs/boost/files/boost-1.60.0-auto-pointer-python.patch
new file mode 100644
index 000000000000..1566c3417fc1
--- /dev/null
+++ b/dev-libs/boost/files/boost-1.60.0-auto-pointer-python.patch
@@ -0,0 +1,42 @@
+From f2c465ffa508459216f7093bf95ba001ad994206 Mon Sep 17 00:00:00 2001
+From: vslashg <veloso@verylowsodium.com>
+Date: Mon, 29 Feb 2016 13:33:35 -0500
+Subject: [PATCH] Fix auto-pointer registration in Boost Python 1.60.
+
+The conditional instantiation magic of maybe_register_pointer_to_python() assumes that use_value_holder and use_back_reference will be one of the boost::mpl::bool_ types, but this assumption is no longer true in Boost 1.60, where they can be standard library bool wrappers instead.
+
+Explicitly defining these types as mpl::bool_ classes fixes https://github.com/boostorg/python/issues/56.
+---
+ boost/python/object/class_metadata.hpp | 12 +++++++-----
+ 1 file changed, 7 insertions(+), 5 deletions(-)
+
+diff --git a/boost/python/object/class_metadata.hpp b/boost/python/object/class_metadata.hpp
+index c71cf67..5009c17 100644
+--- a/boost/python/object/class_metadata.hpp
++++ b/boost/python/object/class_metadata.hpp
+@@ -164,7 +164,7 @@ struct class_metadata
+     >::type held_type;
+ 
+     // Determine if the object will be held by value
+-    typedef is_convertible<held_type*,T*> use_value_holder;
++    typedef mpl::bool_<is_convertible<held_type*,T*>::value> use_value_holder;
+     
+     // Compute the "wrapped type", that is, if held_type is a smart
+     // pointer, we're talking about the pointee.
+@@ -175,10 +175,12 @@ struct class_metadata
+     >::type wrapped;
+ 
+     // Determine whether to use a "back-reference holder"
+-    typedef mpl::or_<
+-        has_back_reference<T>
+-      , is_same<held_type_arg,T>
+-      , is_base_and_derived<T,wrapped>
++    typedef mpl::bool_<
++        mpl::or_<
++            has_back_reference<T>
++          , is_same<held_type_arg,T>
++          , is_base_and_derived<T,wrapped>
++        >::value
+     > use_back_reference;
+ 
+     // Select the holder.
-- 
2.26.2