diff --git a/.gitignore b/.gitignore
index 87781c7..7197ada 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 /liborcus-0.7.1.tar.xz
 /liborcus-0.9.2.tar.xz
 /liborcus-0.11.0.tar.xz
+/liborcus-0.11.1.tar.xz
diff --git a/0001-Fix-for-OSX-build-inside-LibreOffice.patch b/0001-Fix-for-OSX-build-inside-LibreOffice.patch
deleted file mode 100644
index beb8fb8..0000000
--- a/0001-Fix-for-OSX-build-inside-LibreOffice.patch
+++ /dev/null
@@ -1,770 +0,0 @@
-From a1df2d984d527931c6cbbe6547856283bdbf6a9b Mon Sep 17 00:00:00 2001
-From: Kohei Yoshida <kohei.yoshida@gmail.com>
-Date: Sun, 6 Mar 2016 21:21:31 -0500
-Subject: [PATCH] Fix for OSX build inside LibreOffice.
-
----
- include/orcus/sax_ns_parser.hpp          |   2 +-
- slickedit/orcus.vpj                      | 178 ++++---------------------------
- src/liborcus/dom_tree.cpp                |  12 +--
- src/liborcus/json_document_tree.cpp      |  29 +++--
- src/liborcus/json_document_tree_test.cpp |   2 +-
- src/liborcus/ods_content_xml_context.cpp |   2 +-
- src/liborcus/opc_reader.cpp              |   2 +-
- src/liborcus/orcus_gnumeric.cpp          |   2 +-
- src/liborcus/orcus_import_ods.cpp        |   2 +-
- src/liborcus/orcus_import_xlsx.cpp       |   2 +-
- src/liborcus/orcus_xls_xml.cpp           |   2 +-
- src/liborcus/orcus_xlsx.cpp              |  20 ++--
- src/liborcus/orcus_xml.cpp               |   4 +-
- src/liborcus/xlsx_sheet_context.cpp      |   8 +-
- src/liborcus/xml_map_tree.cpp            |   6 +-
- src/liborcus/xml_structure_tree.cpp      |   4 +-
- src/liborcus/yaml_document_tree.cpp      |  34 +++---
- src/mso/encryption_info.cpp              |   3 +-
- src/orcus_filter_global.cpp              |   2 +-
- src/orcus_json_main.cpp                  |   2 +-
- src/orcus_yaml_main.cpp                  |   2 +-
- src/parser/json_parser_base.cpp          |   2 +-
- src/parser/sax_parser_base.cpp           |   2 +-
- src/parser/string_pool.cpp               |   4 +-
- src/parser/yaml_parser_base.cpp          |   2 +-
- src/spreadsheet/document.cpp             |   2 +-
- 26 files changed, 95 insertions(+), 237 deletions(-)
-
-diff --git a/include/orcus/sax_ns_parser.hpp b/include/orcus/sax_ns_parser.hpp
-index 680f39d..49a2b48 100644
---- a/include/orcus/sax_ns_parser.hpp
-+++ b/include/orcus/sax_ns_parser.hpp
-@@ -142,7 +142,7 @@ private:
- 
-         void start_element(const sax::parser_element& elem)
-         {
--            m_scopes.push_back(make_unique<__sax::elem_scope>());
-+            m_scopes.push_back(orcus::make_unique<__sax::elem_scope>());
-             __sax::elem_scope& scope = *m_scopes.back();
-             scope.ns = m_ns_cxt.get(elem.ns);
-             scope.name = elem.name;
-diff --git a/src/liborcus/dom_tree.cpp b/src/liborcus/dom_tree.cpp
-index 255a7d7..1b4588b 100644
---- a/src/liborcus/dom_tree.cpp
-+++ b/src/liborcus/dom_tree.cpp
-@@ -177,7 +177,7 @@ void dom_tree::content::print(ostream& os, const xmlns_context& /*cxt*/) const
- dom_tree::content::~content() {}
- 
- dom_tree::dom_tree(xmlns_context& cxt) :
--    mp_impl(make_unique<dom_tree_impl>(cxt)) {}
-+    mp_impl(orcus::make_unique<dom_tree_impl>(cxt)) {}
- 
- dom_tree::~dom_tree() {}
- 
-@@ -242,7 +242,7 @@ void dom_tree::start_element(xmlns_id_t ns, const pstring& name)
- 
-     // Append new element as a child element of the current element.
-     p = mp_impl->m_elem_stack.back();
--    p->child_nodes.push_back(make_unique<element>(ns, name_safe));
-+    p->child_nodes.push_back(orcus::make_unique<element>(ns, name_safe));
-     p = static_cast<element*>(p->child_nodes.back().get());
-     p->attrs.swap(mp_impl->m_cur_attrs);
-     mp_impl->m_elem_stack.push_back(p);
-@@ -269,7 +269,7 @@ void dom_tree::set_characters(const pstring& val)
- 
-     element* p = mp_impl->m_elem_stack.back();
-     val2 = mp_impl->m_pool.intern(val2).first; // Make sure the string is persistent.
--    p->child_nodes.push_back(make_unique<content>(val2));
-+    p->child_nodes.push_back(orcus::make_unique<content>(val2));
- }
- 
- void dom_tree::set_attribute(xmlns_id_t ns, const pstring& name, const pstring& val)
-@@ -283,7 +283,7 @@ void dom_tree::set_attribute(xmlns_id_t ns, const pstring& name, const pstring&
- 
- void dom_tree::set_doctype(const sax::doctype_declaration& dtd)
- {
--    mp_impl->m_doctype = make_unique<sax::doctype_declaration>(dtd);  // make a copy.
-+    mp_impl->m_doctype = orcus::make_unique<sax::doctype_declaration>(dtd);  // make a copy.
- 
-     sax::doctype_declaration& this_dtd = *mp_impl->m_doctype;
-     string_pool& pool = mp_impl->m_pool;
-@@ -360,7 +360,7 @@ void dom_tree::dump_compact(ostream& os) const
- 
-     scopes_type scopes;
- 
--    scopes.push_back(make_unique<scope>(string(), mp_impl->m_root));
-+    scopes.push_back(orcus::make_unique<scope>(string(), mp_impl->m_root));
-     while (!scopes.empty())
-     {
-         bool new_scope = false;
-@@ -418,7 +418,7 @@ void dom_tree::dump_compact(ostream& os) const
-             ++cur_scope.current_pos;
-             ostringstream elem_name;
-             elem->print(elem_name, mp_impl->m_ns_cxt);
--            scopes.push_back(make_unique<scope>(elem_name.str()));
-+            scopes.push_back(orcus::make_unique<scope>(elem_name.str()));
-             scope& child_scope = *scopes.back();
-             child_scope.nodes.swap(nodes);
-             child_scope.current_pos = child_scope.nodes.begin();
-diff --git a/src/liborcus/json_document_tree.cpp b/src/liborcus/json_document_tree.cpp
-index adafcbf..81289e1 100644
---- a/src/liborcus/json_document_tree.cpp
-+++ b/src/liborcus/json_document_tree.cpp
-@@ -55,7 +55,6 @@ using node_t = json::detail::node_t;
- 
- const char* tab = "    ";
- constexpr char quote = '"';
--constexpr char backslash = '\\';
- 
- const xmlns_id_t NS_orcus_json_xml = "http://schemas.kohei.us/orcus/2015/json";
- 
-@@ -455,13 +454,13 @@ public:
-     {
-         if (m_root)
-         {
--            json_value* jv = push_value(make_unique<json_value_array>());
-+            json_value* jv = push_value(orcus::make_unique<json_value_array>());
-             assert(jv && jv->type == node_t::array);
-             m_stack.push_back(parser_stack(jv));
-         }
-         else
-         {
--            m_root = make_unique<json_value_array>();
-+            m_root = orcus::make_unique<json_value_array>();
-             m_stack.push_back(parser_stack(m_root.get()));
-         }
-     }
-@@ -476,13 +475,13 @@ public:
-     {
-         if (m_root)
-         {
--            json_value* jv = push_value(make_unique<json_value_object>());
-+            json_value* jv = push_value(orcus::make_unique<json_value_object>());
-             assert(jv && jv->type == node_t::object);
-             m_stack.push_back(parser_stack(jv));
-         }
-         else
-         {
--            m_root = make_unique<json_value_object>();
-+            m_root = orcus::make_unique<json_value_object>();
-             m_stack.push_back(parser_stack(m_root.get()));
-         }
-     }
-@@ -504,17 +503,17 @@ public:
- 
-     void boolean_true()
-     {
--        push_value(make_unique<json_value>(node_t::boolean_true));
-+        push_value(orcus::make_unique<json_value>(node_t::boolean_true));
-     }
- 
-     void boolean_false()
-     {
--        push_value(make_unique<json_value>(node_t::boolean_false));
-+        push_value(orcus::make_unique<json_value>(node_t::boolean_false));
-     }
- 
-     void null()
-     {
--        push_value(make_unique<json_value>(node_t::null));
-+        push_value(orcus::make_unique<json_value>(node_t::null));
-     }
- 
-     void string(const char* p, size_t len, bool transient)
-@@ -524,12 +523,12 @@ public:
-             // The tree manages the life cycle of this string value.
-             s = m_pool.intern(s).first;
- 
--        push_value(make_unique<json_value_string>(s));
-+        push_value(orcus::make_unique<json_value_string>(s));
-     }
- 
-     void number(double val)
-     {
--        push_value(make_unique<json_value_number>(val));
-+        push_value(orcus::make_unique<json_value_number>(val));
-     }
- 
-     void swap(std::unique_ptr<json_value>& other_root)
-@@ -554,8 +553,8 @@ struct node::impl
-     impl(const json_value* jv) : m_node(jv) {}
- };
- 
--node::node(const json_value* jv) : mp_impl(make_unique<impl>(jv)) {}
--node::node(const node& other) : mp_impl(make_unique<impl>(other.mp_impl->m_node)) {}
-+node::node(const json_value* jv) : mp_impl(orcus::make_unique<impl>(jv)) {}
-+node::node(const node& other) : mp_impl(orcus::make_unique<impl>(other.mp_impl->m_node)) {}
- node::node(node&& rhs) : mp_impl(std::move(rhs.mp_impl)) {}
- node::~node() {}
- 
-@@ -720,12 +719,12 @@ struct json_document_tree::impl
-     std::unique_ptr<string_pool> m_own_pool;
-     string_pool& m_pool;
- 
--    impl() : m_own_pool(make_unique<string_pool>()), m_pool(*m_own_pool) {}
-+    impl() : m_own_pool(orcus::make_unique<string_pool>()), m_pool(*m_own_pool) {}
-     impl(string_pool& pool) : m_pool(pool) {}
- };
- 
--json_document_tree::json_document_tree() : mp_impl(make_unique<impl>()) {}
--json_document_tree::json_document_tree(string_pool& pool) : mp_impl(make_unique<impl>(pool)) {}
-+json_document_tree::json_document_tree() : mp_impl(orcus::make_unique<impl>()) {}
-+json_document_tree::json_document_tree(string_pool& pool) : mp_impl(orcus::make_unique<impl>(pool)) {}
- json_document_tree::~json_document_tree() {}
- 
- void json_document_tree::load(const std::string& strm, const json_config& config)
-diff --git a/src/liborcus/json_document_tree_test.cpp b/src/liborcus/json_document_tree_test.cpp
-index da16150..4b4fcbd 100644
---- a/src/liborcus/json_document_tree_test.cpp
-+++ b/src/liborcus/json_document_tree_test.cpp
-@@ -193,7 +193,7 @@ std::unique_ptr<json_document_tree> get_doc_tree(const char* filepath)
-     cout << "--- original" << endl;
-     cout << strm << endl;
- 
--    auto doc = make_unique<json_document_tree>();
-+    auto doc = orcus::make_unique<json_document_tree>();
-     doc->load(strm, test_config);
- 
-     return doc;
-diff --git a/src/liborcus/ods_content_xml_context.cpp b/src/liborcus/ods_content_xml_context.cpp
-index f496353..c4e706d 100644
---- a/src/liborcus/ods_content_xml_context.cpp
-+++ b/src/liborcus/ods_content_xml_context.cpp
-@@ -588,7 +588,7 @@ void ods_content_xml_context::push_cell_value()
-         ods_session_data& ods_data =
-             static_cast<ods_session_data&>(*get_session_context().mp_data);
-         ods_data.m_formulas.push_back(
--            make_unique<ods_session_data::formula>(
-+            orcus::make_unique<ods_session_data::formula>(
-                 m_tables.size()-1, m_row, m_col, m_cell_attr.formula_grammar, m_cell_attr.formula));
- 
-         ods_session_data::formula& formula_data = *ods_data.m_formulas.back();
-diff --git a/src/liborcus/opc_reader.cpp b/src/liborcus/opc_reader.cpp
-index 814b2cf..666530e 100644
---- a/src/liborcus/opc_reader.cpp
-+++ b/src/liborcus/opc_reader.cpp
-@@ -244,7 +244,7 @@ void opc_reader::read_content_types()
-         m_config, m_ns_repo, opc_tokens,
-         reinterpret_cast<const char*>(&buffer[0]), buffer.size());
- 
--    auto handler = make_unique<xml_simple_stream_handler>(
-+    auto handler = orcus::make_unique<xml_simple_stream_handler>(
-         new opc_content_types_context(m_session_cxt, opc_tokens));
- 
-     parser.set_handler(handler.get());
-diff --git a/src/liborcus/orcus_gnumeric.cpp b/src/liborcus/orcus_gnumeric.cpp
-index 1873c0e..c29bef9 100644
---- a/src/liborcus/orcus_gnumeric.cpp
-+++ b/src/liborcus/orcus_gnumeric.cpp
-@@ -82,7 +82,7 @@ void orcus_gnumeric::read_content_xml(const char* p, size_t size)
- {
-     xml_stream_parser parser(get_config(), mp_impl->m_ns_repo, gnumeric_tokens, p, size);
- 
--    auto handler = make_unique<gnumeric_content_xml_handler>(
-+    auto handler = orcus::make_unique<gnumeric_content_xml_handler>(
-         mp_impl->m_cxt, gnumeric_tokens, mp_impl->mp_factory);
- 
-     parser.set_handler(handler.get());
-diff --git a/src/liborcus/orcus_import_ods.cpp b/src/liborcus/orcus_import_ods.cpp
-index af1135e..2d76dbb 100644
---- a/src/liborcus/orcus_import_ods.cpp
-+++ b/src/liborcus/orcus_import_ods.cpp
-@@ -32,7 +32,7 @@ void import_ods::read_styles(const char* p, size_t n, spreadsheet::iface::import
- 
-     session_context cxt;
-     odf_styles_map_type styles_map;
--    auto context = make_unique<styles_context>(cxt, odf_tokens, styles_map, styles);
-+    auto context = orcus::make_unique<styles_context>(cxt, odf_tokens, styles_map, styles);
- 
-     xml_simple_stream_handler stream_handler(context.release());
- 
-diff --git a/src/liborcus/orcus_import_xlsx.cpp b/src/liborcus/orcus_import_xlsx.cpp
-index 2f9f172..0d4a933 100644
---- a/src/liborcus/orcus_import_xlsx.cpp
-+++ b/src/liborcus/orcus_import_xlsx.cpp
-@@ -33,7 +33,7 @@ void import_xlsx::read_table(const char* p, size_t n, spreadsheet::iface::import
-         return;
- 
-     session_context cxt;
--    auto handler = make_unique<xlsx_table_xml_handler>(cxt, ooxml_tokens, *table);
-+    auto handler = orcus::make_unique<xlsx_table_xml_handler>(cxt, ooxml_tokens, *table);
- 
-     xmlns_repository ns_repo;
-     ns_repo.add_predefined_values(NS_ooxml_all);
-diff --git a/src/liborcus/orcus_xls_xml.cpp b/src/liborcus/orcus_xls_xml.cpp
-index 2849219..22ffeab 100644
---- a/src/liborcus/orcus_xls_xml.cpp
-+++ b/src/liborcus/orcus_xls_xml.cpp
-@@ -92,7 +92,7 @@ void orcus_xls_xml::read_stream(const char* content, size_t len)
-     xml_stream_parser parser(
-         get_config(), mp_impl->m_ns_repo, xls_xml_tokens, content, len);
- 
--    auto handler = make_unique<xls_xml_handler>(
-+    auto handler = orcus::make_unique<xls_xml_handler>(
-         mp_impl->m_cxt, xls_xml_tokens, mp_impl->mp_factory);
- 
-     parser.set_handler(handler.get());
-diff --git a/src/liborcus/orcus_xlsx.cpp b/src/liborcus/orcus_xlsx.cpp
-index 8c578e6..7c1e46c 100644
---- a/src/liborcus/orcus_xlsx.cpp
-+++ b/src/liborcus/orcus_xlsx.cpp
-@@ -286,7 +286,7 @@ void orcus_xlsx::read_workbook(const string& dir_path, const string& file_name)
-     if (buffer.empty())
-         return;
- 
--    auto handler = make_unique<xml_simple_stream_handler>(
-+    auto handler = orcus::make_unique<xml_simple_stream_handler>(
-         new xlsx_workbook_context(mp_impl->m_cxt, ooxml_tokens));
- 
-     xml_stream_parser parser(
-@@ -341,7 +341,7 @@ void orcus_xlsx::read_sheet(const string& dir_path, const string& file_name, xls
-         get_config(), mp_impl->m_ns_repo, ooxml_tokens,
-         reinterpret_cast<const char*>(&buffer[0]), buffer.size());
- 
--    auto handler = make_unique<xlsx_sheet_xml_handler>(
-+    auto handler = orcus::make_unique<xlsx_sheet_xml_handler>(
-         mp_impl->m_cxt, ooxml_tokens, data->id-1, sheet);
- 
-     parser.set_handler(handler.get());
-@@ -373,7 +373,7 @@ void orcus_xlsx::read_shared_strings(const string& dir_path, const string& file_
-         get_config(), mp_impl->m_ns_repo, ooxml_tokens,
-         reinterpret_cast<const char*>(&buffer[0]), buffer.size());
- 
--    auto handler = make_unique<xml_simple_stream_handler>(
-+    auto handler = orcus::make_unique<xml_simple_stream_handler>(
-         new xlsx_shared_strings_context(
-             mp_impl->m_cxt, ooxml_tokens, mp_impl->mp_factory->get_shared_strings()));
- 
-@@ -406,7 +406,7 @@ void orcus_xlsx::read_styles(const string& dir_path, const string& file_name)
-         get_config(), mp_impl->m_ns_repo, ooxml_tokens,
-         reinterpret_cast<const char*>(&buffer[0]), buffer.size());
- 
--    auto handler = make_unique<xml_simple_stream_handler>(
-+    auto handler = orcus::make_unique<xml_simple_stream_handler>(
-         new xlsx_styles_context(
-             mp_impl->m_cxt, ooxml_tokens, mp_impl->mp_factory->get_styles()));
- 
-@@ -441,7 +441,7 @@ void orcus_xlsx::read_table(const std::string& dir_path, const std::string& file
-     if (buffer.empty())
-         return;
- 
--    auto handler = make_unique<xlsx_table_xml_handler>(mp_impl->m_cxt, ooxml_tokens, *table);
-+    auto handler = orcus::make_unique<xlsx_table_xml_handler>(mp_impl->m_cxt, ooxml_tokens, *table);
- 
-     xml_stream_parser parser(
-         get_config(), mp_impl->m_ns_repo, ooxml_tokens,
-@@ -471,7 +471,7 @@ void orcus_xlsx::read_pivot_cache_def(const std::string& dir_path, const std::st
-     if (buffer.empty())
-         return;
- 
--    auto handler = make_unique<xlsx_pivot_cache_def_xml_handler>(mp_impl->m_cxt, ooxml_tokens);
-+    auto handler = orcus::make_unique<xlsx_pivot_cache_def_xml_handler>(mp_impl->m_cxt, ooxml_tokens);
- 
-     xml_stream_parser parser(
-         get_config(), mp_impl->m_ns_repo, ooxml_tokens,
-@@ -502,7 +502,7 @@ void orcus_xlsx::read_pivot_cache_rec(const std::string& dir_path, const std::st
-     if (buffer.empty())
-         return;
- 
--    auto handler = make_unique<xlsx_pivot_cache_rec_xml_handler>(mp_impl->m_cxt, ooxml_tokens);
-+    auto handler = orcus::make_unique<xlsx_pivot_cache_rec_xml_handler>(mp_impl->m_cxt, ooxml_tokens);
- 
-     xml_stream_parser parser(
-         get_config(), mp_impl->m_ns_repo, ooxml_tokens,
-@@ -532,7 +532,7 @@ void orcus_xlsx::read_pivot_table(const std::string& dir_path, const std::string
-     if (buffer.empty())
-         return;
- 
--    auto handler = make_unique<xlsx_pivot_table_xml_handler>(mp_impl->m_cxt, ooxml_tokens);
-+    auto handler = orcus::make_unique<xlsx_pivot_table_xml_handler>(mp_impl->m_cxt, ooxml_tokens);
- 
-     xml_stream_parser parser(
-         get_config(), mp_impl->m_ns_repo, ooxml_tokens,
-@@ -567,7 +567,7 @@ void orcus_xlsx::read_rev_headers(const std::string& dir_path, const std::string
-         get_config(), mp_impl->m_ns_repo, ooxml_tokens,
-         reinterpret_cast<const char*>(&buffer[0]), buffer.size());
- 
--    auto handler = make_unique<xml_simple_stream_handler>(
-+    auto handler = orcus::make_unique<xml_simple_stream_handler>(
-         new xlsx_revheaders_context(mp_impl->m_cxt, ooxml_tokens));
- 
-     parser.set_handler(handler.get());
-@@ -600,7 +600,7 @@ void orcus_xlsx::read_rev_log(const std::string& dir_path, const std::string& fi
-         get_config(), mp_impl->m_ns_repo, ooxml_tokens,
-         reinterpret_cast<const char*>(&buffer[0]), buffer.size());
- 
--    auto handler = make_unique<xml_simple_stream_handler>(
-+    auto handler = orcus::make_unique<xml_simple_stream_handler>(
-         new xlsx_revlog_context(mp_impl->m_cxt, ooxml_tokens));
- 
-     parser.set_handler(handler.get());
-diff --git a/src/liborcus/orcus_xml.cpp b/src/liborcus/orcus_xml.cpp
-index 2cb7fa3..f97c4f9 100644
---- a/src/liborcus/orcus_xml.cpp
-+++ b/src/liborcus/orcus_xml.cpp
-@@ -343,7 +343,7 @@ void write_range_reference_group(
-     scopes_type scopes;
-     for (spreadsheet::row_t current_row = 0; current_row < ref.row_size; ++current_row)
-     {
--        scopes.push_back(make_unique<scope>(root)); // root element
-+        scopes.push_back(orcus::make_unique<scope>(root)); // root element
- 
-         while (!scopes.empty())
-         {
-@@ -378,7 +378,7 @@ void write_range_reference_group(
-                     // This is a non-leaf element.  Push a new scope with this
-                     // element and re-start the loop.
-                     ++cur_scope.current_child_pos;
--                    scopes.push_back(make_unique<scope>(child_elem));
-+                    scopes.push_back(orcus::make_unique<scope>(child_elem));
-                     new_scope = true;
-                     break;
-                 }
-diff --git a/src/liborcus/xlsx_sheet_context.cpp b/src/liborcus/xlsx_sheet_context.cpp
-index f350049..720319a 100644
---- a/src/liborcus/xlsx_sheet_context.cpp
-+++ b/src/liborcus/xlsx_sheet_context.cpp
-@@ -547,7 +547,7 @@ void xlsx_sheet_context::end_element_cell()
-         {
-             // shared formula expression
-             session_data.m_shared_formulas.push_back(
--                make_unique<xlsx_session_data::shared_formula>(
-+                orcus::make_unique<xlsx_session_data::shared_formula>(
-                     m_sheet_id, m_cur_row, m_cur_col, m_cur_formula.shared_id,
-                     m_cur_formula.str.str(), m_cur_formula.ref.str()));
-         }
-@@ -555,14 +555,14 @@ void xlsx_sheet_context::end_element_cell()
-         {
-             // array formula expression
-             session_data.m_formulas.push_back(
--                make_unique<xlsx_session_data::formula>(
-+                orcus::make_unique<xlsx_session_data::formula>(
-                     m_sheet_id, m_cur_row, m_cur_col, m_cur_formula.str.str(), m_cur_formula.ref.str()));
-         }
-         else
-         {
-             // normal (non-shared) formula expression
-             session_data.m_formulas.push_back(
--                make_unique<xlsx_session_data::formula>(
-+                orcus::make_unique<xlsx_session_data::formula>(
-                     m_sheet_id, m_cur_row, m_cur_col, m_cur_formula.str.str()));
-         }
-     }
-@@ -570,7 +570,7 @@ void xlsx_sheet_context::end_element_cell()
-     {
-         // shared formula without formula expression
-         session_data.m_shared_formulas.push_back(
--            make_unique<xlsx_session_data::shared_formula>(
-+            orcus::make_unique<xlsx_session_data::shared_formula>(
-                 m_sheet_id, m_cur_row, m_cur_col, m_cur_formula.shared_id));
-     }
-     else if (m_cur_formula.type == spreadsheet::formula_t::data_table)
-diff --git a/src/liborcus/xml_map_tree.cpp b/src/liborcus/xml_map_tree.cpp
-index 132ccb9..69fbc75 100644
---- a/src/liborcus/xml_map_tree.cpp
-+++ b/src/liborcus/xml_map_tree.cpp
-@@ -666,7 +666,7 @@ xml_map_tree::linkable* xml_map_tree::get_element_stack(
-         {
-             // Insert a new element of this name.
-             children.push_back(
--                make_unique<element>(
-+                orcus::make_unique<element>(
-                     token.ns, m_names.intern(token.name.get(), token.name.size()).first,
-                     element_unlinked, reference_unknown));
-             cur_element = children.back().get();
-@@ -695,7 +695,7 @@ xml_map_tree::linkable* xml_map_tree::get_element_stack(
-             throw xpath_error("This attribute is already linked.  You can't link the same attribute twice.");
- 
-         attrs.push_back(
--            make_unique<attribute>(
-+            orcus::make_unique<attribute>(
-                 token.ns, m_names.intern(token.name.get(), token.name.size()).first, ref_type));
- 
-         ret = attrs.back().get();
-@@ -710,7 +710,7 @@ xml_map_tree::linkable* xml_map_tree::get_element_stack(
-         {
-             // No element of that name exists.
-             children.push_back(
--                make_unique<element>(
-+                orcus::make_unique<element>(
-                     token.ns, m_names.intern(token.name.get(), token.name.size()).first,
-                     element_linked, ref_type));
- 
-diff --git a/src/liborcus/xml_structure_tree.cpp b/src/liborcus/xml_structure_tree.cpp
-index f2d62bd..3a08c64 100644
---- a/src/liborcus/xml_structure_tree.cpp
-+++ b/src/liborcus/xml_structure_tree.cpp
-@@ -451,7 +451,7 @@ void xml_structure_tree::dump_compact(ostream& os) const
-     cxt.dump(os);
- 
-     element_ref ref(mp_impl->mp_root->name, &mp_impl->mp_root->prop);
--    scopes.push_back(make_unique<scope>(entity_name(), false, ref));
-+    scopes.push_back(orcus::make_unique<scope>(entity_name(), false, ref));
-     while (!scopes.empty())
-     {
-         bool new_scope = false;
-@@ -505,7 +505,7 @@ void xml_structure_tree::dump_compact(ostream& os) const
- 
-             // Push a new scope, and restart the loop with the new scope.
-             ++cur_scope.current_pos;
--            scopes.push_back(make_unique<scope>(this_elem.name, this_elem.prop->repeat));
-+            scopes.push_back(orcus::make_unique<scope>(this_elem.name, this_elem.prop->repeat));
-             scope& child_scope = *scopes.back();
-             child_scope.elements.swap(elems);
-             child_scope.current_pos = child_scope.elements.begin();
-diff --git a/src/liborcus/yaml_document_tree.cpp b/src/liborcus/yaml_document_tree.cpp
-index b7cc4bc..5aad4f2 100644
---- a/src/liborcus/yaml_document_tree.cpp
-+++ b/src/liborcus/yaml_document_tree.cpp
-@@ -254,13 +254,13 @@ public:
- 
-         if (m_root)
-         {
--            yaml_value* yv = push_value(make_unique<yaml_value_sequence>());
-+            yaml_value* yv = push_value(orcus::make_unique<yaml_value_sequence>());
-             assert(yv && yv->type == node_t::sequence);
-             m_stack.push_back(parser_stack(yv));
-         }
-         else
-         {
--            m_root = make_unique<yaml_value_sequence>();
-+            m_root = orcus::make_unique<yaml_value_sequence>();
-             m_stack.push_back(parser_stack(m_root.get()));
-         }
-     }
-@@ -276,13 +276,13 @@ public:
-         assert(m_in_document);
-         if (m_root)
-         {
--            yaml_value* yv = push_value(make_unique<yaml_value_map>());
-+            yaml_value* yv = push_value(orcus::make_unique<yaml_value_map>());
-             assert(yv && yv->type == node_t::map);
-             m_stack.push_back(parser_stack(yv));
-         }
-         else
-         {
--            m_root = make_unique<yaml_value_map>();
-+            m_root = orcus::make_unique<yaml_value_map>();
-             m_stack.push_back(parser_stack(m_root.get()));
-         }
-     }
-@@ -319,11 +319,11 @@ public:
- 
-         if (m_root)
-         {
--            yaml_value* yv = push_value(make_unique<yaml_value_string>(p, n));
-+            yaml_value* yv = push_value(orcus::make_unique<yaml_value_string>(p, n));
-             assert(yv && yv->type == node_t::string);
-         }
-         else
--            m_root = make_unique<yaml_value_string>(p, n);
-+            m_root = orcus::make_unique<yaml_value_string>(p, n);
-     }
- 
-     void number(double val)
-@@ -331,11 +331,11 @@ public:
-         assert(m_in_document);
-         if (m_root)
-         {
--            yaml_value* yv = push_value(make_unique<yaml_value_number>(val));
-+            yaml_value* yv = push_value(orcus::make_unique<yaml_value_number>(val));
-             assert(yv && yv->type == node_t::number);
-         }
-         else
--            m_root = make_unique<yaml_value_number>(val);
-+            m_root = orcus::make_unique<yaml_value_number>(val);
-     }
- 
-     void boolean_true()
-@@ -343,11 +343,11 @@ public:
-         assert(m_in_document);
-         if (m_root)
-         {
--            yaml_value* yv = push_value(make_unique<yaml_value>(node_t::boolean_true));
-+            yaml_value* yv = push_value(orcus::make_unique<yaml_value>(node_t::boolean_true));
-             assert(yv && yv->type == node_t::boolean_true);
-         }
-         else
--            m_root = make_unique<yaml_value>(node_t::boolean_true);
-+            m_root = orcus::make_unique<yaml_value>(node_t::boolean_true);
-     }
- 
-     void boolean_false()
-@@ -355,11 +355,11 @@ public:
-         assert(m_in_document);
-         if (m_root)
-         {
--            yaml_value* yv = push_value(make_unique<yaml_value>(node_t::boolean_false));
-+            yaml_value* yv = push_value(orcus::make_unique<yaml_value>(node_t::boolean_false));
-             assert(yv && yv->type == node_t::boolean_false);
-         }
-         else
--            m_root = make_unique<yaml_value>(node_t::boolean_false);
-+            m_root = orcus::make_unique<yaml_value>(node_t::boolean_false);
-     }
- 
-     void null()
-@@ -367,11 +367,11 @@ public:
-         assert(m_in_document);
-         if (m_root)
-         {
--            yaml_value* yv = push_value(make_unique<yaml_value>(node_t::null));
-+            yaml_value* yv = push_value(orcus::make_unique<yaml_value>(node_t::null));
-             assert(yv && yv->type == node_t::null);
-         }
-         else
--            m_root = make_unique<yaml_value>(node_t::null);
-+            m_root = orcus::make_unique<yaml_value>(node_t::null);
-     }
- 
-     void swap(std::vector<document_root_type>& docs)
-@@ -396,8 +396,8 @@ struct node::impl
-     impl(const yaml_value* yv) : m_node(yv) {}
- };
- 
--node::node(const yaml_value* yv) : mp_impl(make_unique<impl>(yv)) {}
--node::node(const node& other) : mp_impl(make_unique<impl>(other.mp_impl->m_node)) {}
-+node::node(const yaml_value* yv) : mp_impl(orcus::make_unique<impl>(yv)) {}
-+node::node(const node& other) : mp_impl(orcus::make_unique<impl>(other.mp_impl->m_node)) {}
- node::node(node&& rhs) : mp_impl(std::move(rhs.mp_impl)) {}
- node::~node() {}
- 
-@@ -548,7 +548,7 @@ double node::numeric_value() const
- 
- }}
- 
--yaml_document_tree::yaml_document_tree() : mp_impl(make_unique<impl>()) {}
-+yaml_document_tree::yaml_document_tree() : mp_impl(orcus::make_unique<impl>()) {}
- yaml_document_tree::~yaml_document_tree() {}
- 
- void yaml_document_tree::load(const std::string& strm)
-diff --git a/src/mso/encryption_info.cpp b/src/mso/encryption_info.cpp
-index 1d428fc..e9bc3ad 100644
---- a/src/mso/encryption_info.cpp
-+++ b/src/mso/encryption_info.cpp
-@@ -143,11 +143,10 @@ public:
- 
- class sax_handler
- {
--    xmlns_context& m_ns_cxt;
-     vector<sax_ns_parser_attribute> m_attrs;
- 
- public:
--    sax_handler(xmlns_context& ns_cxt) : m_ns_cxt(ns_cxt) {}
-+    sax_handler(xmlns_context& /*ns_cxt*/) {}
-     void doctype(const sax::doctype_declaration&) {}
-     void start_declaration(const pstring&) {}
-     void end_declaration(const pstring&) {}
-diff --git a/src/orcus_filter_global.cpp b/src/orcus_filter_global.cpp
-index 09c2ab6..df50496 100644
---- a/src/orcus_filter_global.cpp
-+++ b/src/orcus_filter_global.cpp
-@@ -239,7 +239,7 @@ std::unique_ptr<json_config> parse_json_args(int argc, char** argv)
-         return nullptr;
-     }
- 
--    std::unique_ptr<json_config> config = make_unique<json_config>();
-+    std::unique_ptr<json_config> config = orcus::make_unique<json_config>();
- 
-     if (vm.count("input"))
-         config->input_path = vm["input"].as<string>();
-diff --git a/src/orcus_json_main.cpp b/src/orcus_json_main.cpp
-index edca63a..6a739b2 100644
---- a/src/orcus_json_main.cpp
-+++ b/src/orcus_json_main.cpp
-@@ -25,7 +25,7 @@ using namespace orcus;
- 
- std::unique_ptr<json_document_tree> load_doc(const std::string& strm, const json_config& config)
- {
--    std::unique_ptr<json_document_tree> doc(make_unique<json_document_tree>());
-+    std::unique_ptr<json_document_tree> doc(orcus::make_unique<json_document_tree>());
-     try
-     {
-         doc->load(strm, config);
-diff --git a/src/orcus_yaml_main.cpp b/src/orcus_yaml_main.cpp
-index 3d15742..c028f64 100644
---- a/src/orcus_yaml_main.cpp
-+++ b/src/orcus_yaml_main.cpp
-@@ -76,7 +76,7 @@ std::unique_ptr<yaml_config> parse_yaml_args(int argc, char** argv)
-         return nullptr;
-     }
- 
--    std::unique_ptr<yaml_config> config = make_unique<yaml_config>();
-+    std::unique_ptr<yaml_config> config = orcus::make_unique<yaml_config>();
- 
-     if (vm.count("input"))
-         config->input_path = vm["input"].as<string>();
-diff --git a/src/parser/json_parser_base.cpp b/src/parser/json_parser_base.cpp
-index 50e3f36..eff27b7 100644
---- a/src/parser/json_parser_base.cpp
-+++ b/src/parser/json_parser_base.cpp
-@@ -35,7 +35,7 @@ struct parser_base::impl
- };
- 
- parser_base::parser_base(const char* p, size_t n) :
--    ::orcus::parser_base(p, n), mp_impl(make_unique<impl>()) {}
-+    ::orcus::parser_base(p, n), mp_impl(orcus::make_unique<impl>()) {}
- 
- parser_base::~parser_base() {}
- 
-diff --git a/src/parser/sax_parser_base.cpp b/src/parser/sax_parser_base.cpp
-index 51d56a4..3cd4f25 100644
---- a/src/parser/sax_parser_base.cpp
-+++ b/src/parser/sax_parser_base.cpp
-@@ -57,7 +57,7 @@ struct parser_base::impl
- 
- parser_base::parser_base(const char* content, size_t size) :
-     ::orcus::parser_base(content, size),
--    mp_impl(make_unique<impl>()),
-+    mp_impl(orcus::make_unique<impl>()),
-     m_nest_level(0),
-     m_buffer_pos(0),
-     m_root_elem_open(true)
-diff --git a/src/parser/string_pool.cpp b/src/parser/string_pool.cpp
-index 83c0501..baba88a 100644
---- a/src/parser/string_pool.cpp
-+++ b/src/parser/string_pool.cpp
-@@ -61,7 +61,7 @@ struct string_pool::impl
-     string_store_type m_store;
- };
- 
--string_pool::string_pool() : mp_impl(make_unique<impl>()) {}
-+string_pool::string_pool() : mp_impl(orcus::make_unique<impl>()) {}
- 
- string_pool::~string_pool()
- {
-@@ -82,7 +82,7 @@ pair<pstring, bool> string_pool::intern(const char* str, size_t n)
-     if (itr == mp_impl->m_set.end())
-     {
-         // This string has not been interned.  Intern it.
--        mp_impl->m_store.push_back(make_unique<string>(str, n));
-+        mp_impl->m_store.push_back(orcus::make_unique<string>(str, n));
-         pair<string_set_type::iterator,bool> r = mp_impl->m_set.insert(pstring(mp_impl->m_store.back()->data(), n));
-         if (!r.second)
-             throw general_error("failed to intern a new string instance.");
-diff --git a/src/parser/yaml_parser_base.cpp b/src/parser/yaml_parser_base.cpp
-index 656dfdc..3c93266 100644
---- a/src/parser/yaml_parser_base.cpp
-+++ b/src/parser/yaml_parser_base.cpp
-@@ -59,7 +59,7 @@ const size_t parser_base::parse_indent_end_of_stream = std::numeric_limits<size_
- const size_t parser_base::scope_empty = std::numeric_limits<size_t>::max() - 2;
- 
- parser_base::parser_base(const char* p, size_t n) :
--    ::orcus::parser_base(p, n), mp_impl(make_unique<impl>()) {}
-+    ::orcus::parser_base(p, n), mp_impl(orcus::make_unique<impl>()) {}
- 
- parser_base::~parser_base() {}
- 
-diff --git a/src/spreadsheet/document.cpp b/src/spreadsheet/document.cpp
-index a80646c..17cc113 100644
---- a/src/spreadsheet/document.cpp
-+++ b/src/spreadsheet/document.cpp
-@@ -448,7 +448,7 @@ sheet* document::append_sheet(const pstring& sheet_name, row_t row_size, col_t c
-     sheet_t sheet_index = static_cast<sheet_t>(mp_impl->m_sheets.size());
- 
-     mp_impl->m_sheets.push_back(
--        make_unique<sheet_item>(
-+        orcus::make_unique<sheet_item>(
-             *this, sheet_name_safe, sheet_index, row_size, col_size));
- 
-     mp_impl->m_context.append_sheet(
--- 
-2.5.0
-
diff --git a/LICENSE b/LICENSE
deleted file mode 100644
index fc06f95..0000000
--- a/LICENSE
+++ /dev/null
@@ -1,4 +0,0 @@
-This Source Code Form is subject to the terms of the Mozilla Public
-License, v. 2.0. If a copy of the MPL was not distributed with this
-file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
diff --git a/liborcus.spec b/liborcus.spec
index 99e22fb..c6625b1 100644
--- a/liborcus.spec
+++ b/liborcus.spec
@@ -6,14 +6,13 @@
 %bcond_without python
 
 Name: liborcus
-Version: 0.11.0
+Version: 0.11.1
 Release: 1%{?dist}
 Summary: Standalone file import filter library for spreadsheet documents
 
 License: MPLv2.0
 URL: https://gitlab.com/orcus/orcus
 Source0: http://kohei.us/files/orcus/src/%{name}-%{version}.tar.xz
-Source1: LICENSE
 
 BuildRequires: boost-devel
 BuildRequires: doxygen
@@ -27,8 +26,6 @@ BuildRequires: pkgconfig(python3)
 %endif
 BuildRequires: pkgconfig(zlib)
 
-Patch0: 0001-Fix-for-OSX-build-inside-LibreOffice.patch
-
 %description
 %{name} is a standalone file import filter library for spreadsheet
 documents. Currently under development are ODS, XLSX and CSV import
@@ -78,7 +75,6 @@ API documentation for %{name}.
 
 %prep
 %autosetup -p1
-cp %{SOURCE1} .
 
 %if %{without convtools}
 %global condopts %{?condopts} --disable-spreadsheet-model
@@ -187,6 +183,9 @@ make check %{?_smp_mflags}
 %doc doc/html
 
 %changelog
+* Mon Mar 14 2016 David Tardon <dtardon@redhat.com> - 0.11.1-1
+- new upstream release
+
 * Tue Mar 08 2016 David Tardon <dtardon@redhat.com> - 0.11.0-1
 - new upstream release
 
diff --git a/sources b/sources
index c1fbeef..bd7ed27 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-30ab8039a98d0122cbe66f5b974ded18  liborcus-0.11.0.tar.xz
+79726eadf692e0c3b79083125384d0e4  liborcus-0.11.1.tar.xz