diff --git a/CHANGES b/CHANGES
index faabb32ad..8b52dd47c 100644
--- a/CHANGES
+++ b/CHANGES
@@ -145,10 +145,17 @@ Bugs fixed
 * #4924: html search: Upper characters problem in any other languages
 * #4932: apidoc: some subpackage is ignored if sibling subpackage contains a
   module starting with underscore
-* #4938, #4939: i18n doesn't handle node.title correctly tat used for contents,
-  topic, admonition, table and section.
+* #4863, #4938, #4939: i18n doesn't handle node.title correctly tat used for
+  contents, topic, admonition, table and section.
 * #4913: i18n: literal blocks in bullet list are not translated
-* #4962: cpp domain: raises TypeError on duplicate declaration
+* #4962: C++, raised TypeError on duplicate declaration.
+* #4825: C++, properly parse expr roles and give better error messages when
+  (escaped) line breaks are present.
+* C++, properly use ``desc_addname`` nodes for prefixes of names.
+* #4915, #4916: links on search page are broken when using dirhtml builder
+* #4969: autodoc: constructor method should not have return annotation
+* latex: deeply nested enumerated list which is beginning with non-1 causes
+  LaTeX engine crashed
 
 Testing
 --------
diff --git a/sphinx/builders/epub3.py b/sphinx/builders/epub3.py
index 5d3384b46..c1e6ab98a 100644
--- a/sphinx/builders/epub3.py
+++ b/sphinx/builders/epub3.py
@@ -190,7 +190,7 @@ class Epub3Builder(_epub_base.EpubBuilder):
                 navstack[-1].children.append(navpoint)
                 navstack.append(navpoint)
             else:
-                raise
+                raise RuntimeError('Should never reach here. It might be a bug.')
 
         return navstack[0].children
 
diff --git a/sphinx/domains/cpp.py b/sphinx/domains/cpp.py
index 98eabb956..830f15f29 100644
--- a/sphinx/domains/cpp.py
+++ b/sphinx/domains/cpp.py
@@ -12,7 +12,7 @@
 import re
 from copy import deepcopy
 
-from docutils import nodes
+from docutils import nodes, utils
 from docutils.parsers.rst import directives
 from six import iteritems, text_type
 
@@ -1967,26 +1967,34 @@ class ASTNestedName(ASTBase):
             prefix = ''  # type: unicode
             first = True
             names = self.names[:-1] if mode == 'lastIsName' else self.names
+            # If lastIsName, then wrap all of the prefix in a desc_addname,
+            # else append directly to signode.
+            # NOTE: Breathe relies on the prefix being in the desc_addname node,
+            #       so it can remove it in inner declarations.
+            dest = signode
+            if mode == 'lastIsName':
+                dest = addnodes.desc_addname()
             for i in range(len(names)):
                 name = names[i]
                 template = self.templates[i]
                 if not first:
-                    signode += nodes.Text('::')
+                    dest += nodes.Text('::')
                     prefix += '::'
                 if template:
-                    signode += nodes.Text("template ")
+                    dest += nodes.Text("template ")
                 first = False
                 if name != '':
                     if (name.templateArgs and  # type: ignore
                             iTemplateParams < len(templateParams)):
                         templateParamsPrefix += text_type(templateParams[iTemplateParams])
                         iTemplateParams += 1
-                    name.describe_signature(signode, 'markType',  # type: ignore
+                    name.describe_signature(dest, 'markType',  # type: ignore
                                             env, templateParamsPrefix + prefix, symbol)
                 prefix += text_type(name)
             if mode == 'lastIsName':
                 if len(self.names) > 1:
-                    signode += addnodes.desc_addname('::', '::')
+                    dest += addnodes.desc_addname('::', '::')
+                    signode += dest
                 if self.templates[-1]:
                     signode += nodes.Text("template ")
                 self.names[-1].describe_signature(signode, mode, env, '', symbol)
@@ -5961,7 +5969,7 @@ class CPPExprRole(object):
         class Warner(object):
             def warn(self, msg):
                 inliner.reporter.warning(msg, line=lineno)
-
+        text = utils.unescape(text).replace('\n', ' ')
         env = inliner.document.settings.env
         parser = DefinitionParser(text, Warner(), env.config)
         try:
diff --git a/sphinx/ext/autodoc/__init__.py b/sphinx/ext/autodoc/__init__.py
index 1ebf6399b..353188aaf 100644
--- a/sphinx/ext/autodoc/__init__.py
+++ b/sphinx/ext/autodoc/__init__.py
@@ -1035,9 +1035,11 @@ class FunctionDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):  # typ
             # typing) we try to use the constructor signature as function
             # signature without the first argument.
             try:
-                args = Signature(self.object.__new__, bound_method=True).format_args()
+                sig = Signature(self.object.__new__, bound_method=True, has_retval=False)
+                args = sig.format_args()
             except TypeError:
-                args = Signature(self.object.__init__, bound_method=True).format_args()
+                sig = Signature(self.object.__init__, bound_method=True, has_retval=False)
+                args = sig.format_args()
 
         # escape backslashes for reST
         args = args.replace('\\', '\\\\')
@@ -1090,7 +1092,7 @@ class ClassDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):  # type:
                 not(inspect.ismethod(initmeth) or inspect.isfunction(initmeth)):
             return None
         try:
-            return Signature(initmeth, bound_method=True).format_args()
+            return Signature(initmeth, bound_method=True, has_retval=False).format_args()
         except TypeError:
             # still not possible: happens e.g. for old-style classes
             # with __init__ in C
diff --git a/sphinx/themes/basic/layout.html b/sphinx/themes/basic/layout.html
index a25a18b90..4795f7397 100644
--- a/sphinx/themes/basic/layout.html
+++ b/sphinx/themes/basic/layout.html
@@ -87,7 +87,7 @@
 {%- endmacro %}
 
 {%- macro script() %}
-    <script type="text/javascript" src="{{ pathto('_static/documentation_options.js', 1) }}"></script>
+    <script type="text/javascript" id="documentation_options" data-url_root="{{ pathto('', 1) }}" src="{{ pathto('_static/documentation_options.js', 1) }}"></script>
     {%- for scriptfile in script_files %}
     <script type="text/javascript" src="{{ pathto(scriptfile, 1) }}"></script>
     {%- endfor %}
diff --git a/sphinx/themes/basic/static/documentation_options.js_t b/sphinx/themes/basic/static/documentation_options.js_t
index e76f55a4e..9da9801a1 100644
--- a/sphinx/themes/basic/static/documentation_options.js_t
+++ b/sphinx/themes/basic/static/documentation_options.js_t
@@ -1,5 +1,5 @@
 var DOCUMENTATION_OPTIONS = {
-    URL_ROOT: '{{ url_root }}',
+    URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
     VERSION: '{{ release|e }}',
     LANGUAGE: '{{ language }}',
     COLLAPSE_INDEX: false,
diff --git a/sphinx/util/inspect.py b/sphinx/util/inspect.py
index 5dab5a710..7bda11503 100644
--- a/sphinx/util/inspect.py
+++ b/sphinx/util/inspect.py
@@ -309,8 +309,8 @@ class Signature(object):
     its return annotation.
     """
 
-    def __init__(self, subject, bound_method=False):
-        # type: (Callable, bool) -> None
+    def __init__(self, subject, bound_method=False, has_retval=True):
+        # type: (Callable, bool, bool) -> None
         # check subject is not a built-in class (ex. int, str)
         if (isinstance(subject, type) and
                 is_builtin_class_method(subject, "__new__") and
@@ -318,6 +318,7 @@ class Signature(object):
             raise TypeError("can't compute signature for built-in type {}".format(subject))
 
         self.subject = subject
+        self.has_retval = has_retval
         self.partialmethod_with_noargs = False
 
         if PY3:
@@ -386,7 +387,10 @@ class Signature(object):
     def return_annotation(self):
         # type: () -> Any
         if PY3 and self.signature:
-            return self.signature.return_annotation
+            if self.has_retval:
+                return self.signature.return_annotation
+            else:
+                return inspect.Parameter.empty
         else:
             return None
 
diff --git a/sphinx/writers/latex.py b/sphinx/writers/latex.py
index 6c4b66881..2c0cc0424 100644
--- a/sphinx/writers/latex.py
+++ b/sphinx/writers/latex.py
@@ -19,6 +19,7 @@ from collections import defaultdict
 from os import path
 
 from docutils import nodes, writers
+from docutils.utils.roman import toRoman
 from docutils.writers.latex2e import Babel
 from six import itervalues, text_type
 
@@ -1500,8 +1501,8 @@ class LaTeXTranslator(nodes.NodeVisitor):
 
         self.body.append('\\begin{enumerate}\n')
         if 'start' in node:
-            nested = get_nested_level(node)
-            self.body.append('\\setcounter{enum%s}{%d}\n' % ('i' * nested, node['start'] - 1))
+            enum_depth = "enum%s" % toRoman(get_nested_level(node)).lower()
+            self.body.append('\\setcounter{%s}{%d}\n' % (enum_depth, node['start'] - 1))
         if self.table:
             self.table.has_problematic = True
 
diff --git a/tests/roots/test-nested-enumerated-list/index.rst b/tests/roots/test-nested-enumerated-list/index.rst
index e1a9b5cbc..28ad72f9d 100644
--- a/tests/roots/test-nested-enumerated-list/index.rst
+++ b/tests/roots/test-nested-enumerated-list/index.rst
@@ -9,6 +9,12 @@ nested-enumerated-list
       10) Pyramid
       11) Nile River
 
+          (x) Atbara
+          (y) Blue Nile
+          (#) Sobat
+          (#) Semliki
+          (#) Kagera
+
 6. Markup
 
    iii. reStructuredText
diff --git a/tests/test_build_latex.py b/tests/test_build_latex.py
index 459ac9f1d..bfdf06b2b 100644
--- a/tests/test_build_latex.py
+++ b/tests/test_build_latex.py
@@ -1231,6 +1231,7 @@ def test_latex_nested_enumerated_list(app, status, warning):
     assert r'\setcounter{enumi}{4}' in result
     assert r'\setcounter{enumii}{3}' in result
     assert r'\setcounter{enumiii}{9}' in result
+    assert r'\setcounter{enumiv}{23}' in result
     assert r'\setcounter{enumii}{2}' in result
 
 
diff --git a/tests/test_util_inspect.py b/tests/test_util_inspect.py
index 0c7c7667d..09aff512f 100644
--- a/tests/test_util_inspect.py
+++ b/tests/test_util_inspect.py
@@ -280,6 +280,10 @@ def test_Signature_annotations():
     sig = inspect.Signature(f11).format_args()
     assert sig == '(x: CustomAnnotation, y: 123) -> None'
 
+    # has_retval=False
+    sig = inspect.Signature(f11, has_retval=False).format_args()
+    assert sig == '(x: CustomAnnotation, y: 123)'
+
 
 def test_safe_getattr_with_default():
     class Foo(object):