From a13edb86318b21e224cf1365fc9c5edb05df18dc Mon Sep 17 00:00:00 2001
From: shimizukawa <shimizukawa@gmail.com>
Date: Sun, 20 Nov 2016 17:32:05 +0900
Subject: [PATCH] refs #3093: gettext build broken on substituted images.

---
 CHANGES              | 1 +
 sphinx/transforms.py | 4 ++--
 sphinx/util/nodes.py | 2 ++
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGES b/CHANGES
index 49b0ca941e..ef2997d105 100644
--- a/CHANGES
+++ b/CHANGES
@@ -11,6 +11,7 @@ Bugs fixed
 * #3074: ``add_source_parser()`` crashes in debug mode
 * #3135: ``sphinx.ext.autodoc`` crashes with plain Callable
 * #3150: Fix query word splitter in JavaScript. It behaves as same as Python's regular expression.
+* #3093: gettext build broken on substituted images.
 
 Release 1.4.8 (released Oct 1, 2016)
 ====================================
diff --git a/sphinx/transforms.py b/sphinx/transforms.py
index cb4a5779bd..ba15ae6141 100644
--- a/sphinx/transforms.py
+++ b/sphinx/transforms.py
@@ -166,7 +166,7 @@ class ApplySourceWorkaround(Transform):
 
     def apply(self):
         for n in self.document.traverse():
-            if isinstance(n, nodes.TextElement):
+            if isinstance(n, (nodes.TextElement, nodes.image)):
                 apply_source_workaround(n)
 
 
@@ -192,7 +192,7 @@ class ExtraTranslatableNodes(Transform):
     """
     make nodes translatable
     """
-    default_priority = 10
+    default_priority = 9
 
     def apply(self):
         targets = self.document.settings.env.config.gettext_additional_targets
diff --git a/sphinx/util/nodes.py b/sphinx/util/nodes.py
index e4a2fd73b8..e51ad29727 100644
--- a/sphinx/util/nodes.py
+++ b/sphinx/util/nodes.py
@@ -46,6 +46,8 @@ def apply_source_workaround(node):
         node.source = definition_list_item.source
         node.line = definition_list_item.line - 1
         node.rawsource = node.astext()  # set 'classifier1' (or 'classifier2')
+    if isinstance(node, nodes.image) and node.source is None:
+        node.source, node.line = node.parent.source, node.parent.line
     if isinstance(node, nodes.term):
         # strip classifier from rawsource of term
         for classifier in reversed(node.parent.traverse(nodes.classifier)):