From 9d15d3f654d19cc929f0ece3ef7da96431d054b0 Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Sun, 3 Jan 2010 16:03:08 +0100
Subject: [PATCH] #302: Fix links generated by the ``:doc:`` role for LaTeX
 output.

For that, record the source docname in an xfileref node in node['refdoc'].
The LaTeX builder creates one big toctree out of all documents, therefore
"fromdocname" in resolve_references refers to the wrong file.
---
 CHANGES               |  2 ++
 sphinx/environment.py | 18 +++++++++---------
 sphinx/roles.py       |  1 +
 3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/CHANGES b/CHANGES
index 8aa1ca0d6..1f60c6f9c 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,6 +1,8 @@
 Release 0.6.4 (in development)
 ==============================
 
+* #302: Fix links generated by the ``:doc:`` role for LaTeX output.
+
 * #286: collect todo nodes after the whole document has been read;
   this allows placing substitution references in todo items.
 
diff --git a/sphinx/environment.py b/sphinx/environment.py
index b83b2fbf0..5c9b45f0a 100644
--- a/sphinx/environment.py
+++ b/sphinx/environment.py
@@ -53,7 +53,7 @@ default_settings = {
 
 # This is increased every time an environment attribute is added
 # or changed to properly invalidate pickle files.
-ENV_VERSION = 30
+ENV_VERSION = 31
 
 
 default_substitutions = set([
@@ -1177,7 +1177,7 @@ class BuildEnvironment:
                         docname, labelid = self.anonlabels.get(target, ('',''))
                         sectname = node.astext()
                         if not docname:
-                            self.warn(fromdocname, 'undefined label: %s' %
+                            self.warn(node['refdoc'], 'undefined label: %s' %
                                       target, node.line)
                     else:
                         # reference to the named label; the final node will
@@ -1186,7 +1186,7 @@ class BuildEnvironment:
                                                                      ('','',''))
                         if not docname:
                             self.warn(
-                                fromdocname,
+                                node['refdoc'],
                                 'undefined label: %s' % target + ' -- if you '
                                 'don\'t give a link caption the label must '
                                 'precede a section header.', node.line)
@@ -1212,10 +1212,10 @@ class BuildEnvironment:
                 elif typ == 'doc':
                     # directly reference to document by source name;
                     # can be absolute or relative
-                    docname = docname_join(fromdocname, target)
+                    docname = docname_join(node['refdoc'], target)
                     if docname not in self.all_docs:
-                        self.warn(fromdocname, 'unknown document: %s' % docname,
-                                  node.line)
+                        self.warn(node['refdoc'],
+                                  'unknown document: %s' % docname, node.line)
                         newnode = contnode
                     else:
                         if node['refcaption']:
@@ -1232,7 +1232,7 @@ class BuildEnvironment:
                     # keywords are referenced by named labels
                     docname, labelid, _ = self.labels.get(target, ('','',''))
                     if not docname:
-                        #self.warn(fromdocname, 'unknown keyword: %s' % target)
+                        #self.warn(node['refdoc'], 'unknown keyword: %s' % target)
                         newnode = contnode
                     else:
                         newnode = nodes.reference('', '')
@@ -1261,11 +1261,11 @@ class BuildEnvironment:
                                                            ('', ''))
                     if not docname:
                         if typ == 'term':
-                            self.warn(fromdocname,
+                            self.warn(node['refdoc'],
                                       'term not in glossary: %s' % target,
                                       node.line)
                         elif typ == 'citation':
-                            self.warn(fromdocname,
+                            self.warn(node['refdoc'],
                                       'citation not found: %s' % target,
                                       node.line)
                         newnode = contnode
diff --git a/sphinx/roles.py b/sphinx/roles.py
index 345461110..599de3c75 100644
--- a/sphinx/roles.py
+++ b/sphinx/roles.py
@@ -203,6 +203,7 @@ def xfileref_role(typ, rawtext, text, lineno, inliner, options={}, content=[]):
     else:
         # remove all whitespace to avoid referencing problems
         target = ws_re.sub('', target)
+    pnode['refdoc'] = env.docname
     pnode['reftarget'] = target
     pnode += innernodetypes.get(typ, nodes.literal)(rawtext, title,
                                                     classes=['xref'])