diff --git a/doc/global/compat.qdocconf b/doc/global/compat.qdocconf
index ec4cfaa7c82..12d061a28ad 100644
--- a/doc/global/compat.qdocconf
+++ b/doc/global/compat.qdocconf
@@ -1,5 +1,3 @@
-alias.include                   = input
-
 macro.0                         = "\\\\0"
 macro.n                         = "\\\\n"
 macro.r                         = "\\\\r"
diff --git a/src/tools/qdoc/config.cpp b/src/tools/qdoc/config.cpp
index 8729bf387f8..48be30c24ea 100644
--- a/src/tools/qdoc/config.cpp
+++ b/src/tools/qdoc/config.cpp
@@ -181,6 +181,7 @@ QSet<QString> Config::overrideOutputFormats;
 QMap<QString, QString> Config::extractedDirs;
 int Config::numInstances;
 QStack<QString> Config::workingDirs_;
+QMap<QString, QStringList> Config::includeFilesMap_;
 
 /*!
   \class Config
@@ -201,6 +202,7 @@ Config::Config(const QString& programName)
     lastLocation_ = Location::null;
     configVars_.clear();
     numInstances++;
+    includeFilesMap_.clear();
 }
 
 /*!
@@ -208,6 +210,7 @@ Config::Config(const QString& programName)
  */
 Config::~Config()
 {
+    includeFilesMap_.clear();
 }
 
 /*!
@@ -588,6 +591,33 @@ void Config::subVarsAndValues(const QString& var, ConfigVarMultimap& t) const
     }
 }
 
+/*!
+  Get all .qdocinc files.
+ */
+QString Config::getIncludeFilePath(const QString& fileName) const
+{
+    QString ext = fileName.mid(fileName.lastIndexOf('.'));
+    ext.prepend('*');
+
+    if (!includeFilesMap_.contains(ext)) {
+        QSet<QString> t;
+        QStringList result;
+        QStringList dirs = getCanonicalPathList(CONFIG_SOURCEDIRS);
+        QStringList::ConstIterator d = dirs.constBegin();
+        while (d != dirs.constEnd()) {
+            result += getFilesHere(*d, ext, location(), t, t);
+            ++d;
+        }
+        includeFilesMap_.insert(ext, result);
+    }
+    const QStringList& paths = (*includeFilesMap_.find(ext));
+    for (int i=0; i<paths.size(); ++i) {
+        if (paths[i].endsWith(fileName))
+            return paths[i];
+    }
+    return QString();
+}
+
 /*!
   Builds and returns a list of file pathnames for the file
   type specified by \a filesVar (e.g. "headers" or "sources").
diff --git a/src/tools/qdoc/config.h b/src/tools/qdoc/config.h
index 948f31c01ae..6efff444429 100644
--- a/src/tools/qdoc/config.h
+++ b/src/tools/qdoc/config.h
@@ -112,6 +112,7 @@ public:
                             const QString& dirsVar,
                             const QSet<QString> &excludedDirs = QSet<QString>(),
                             const QSet<QString> &excludedFiles = QSet<QString>());
+    QString getIncludeFilePath(const QString& fileName) const;
     QStringList getExampleQdocFiles(const QSet<QString> &excludedDirs, const QSet<QString> &excludedFiles);
     QStringList getExampleImageFiles(const QSet<QString> &excludedDirs, const QSet<QString> &excludedFiles);
 
@@ -160,6 +161,7 @@ private:
     static QMap<QString, QString> extractedDirs;
     static int numInstances;
     static QStack<QString> workingDirs_;
+    static QMap<QString, QStringList> includeFilesMap_;
 };
 
 #define CONFIG_ALIAS                    "alias"
diff --git a/src/tools/qdoc/doc.cpp b/src/tools/qdoc/doc.cpp
index 4d6b0b1a2cb..1e0c66cd082 100644
--- a/src/tools/qdoc/doc.cpp
+++ b/src/tools/qdoc/doc.cpp
@@ -125,6 +125,7 @@ enum {
     CMD_INCLUDE,
     CMD_INLINEIMAGE,
     CMD_INDEX,
+    CMD_INPUT,
     CMD_KEYWORD,
     CMD_L,
     CMD_LEGALESE,
@@ -242,6 +243,7 @@ static struct {
     { "include", CMD_INCLUDE, 0 },
     { "inlineimage", CMD_INLINEIMAGE, 0 },
     { "index", CMD_INDEX, 0 }, // ### don't document for now
+    { "input", CMD_INPUT, 0 },
     { "keyword", CMD_KEYWORD, 0 },
     { "l", CMD_L, 0 },
     { "legalese", CMD_LEGALESE, 0 },
@@ -923,6 +925,7 @@ void DocParser::parse(const QString& source,
                     enterPara(Atom::ImportantLeft, Atom::ImportantRight);
                     break;
                 case CMD_INCLUDE:
+                case CMD_INPUT:
                 {
                     QString fileName = getArgument();
                     QString identifier = getRestOfLine();
@@ -1681,16 +1684,17 @@ void DocParser::insertTarget(const QString &target, bool keyword)
 void DocParser::include(const QString& fileName, const QString& identifier)
 {
     if (location().depth() > 16)
-        location().fatal(tr("Too many nested '\\%1's")
-                         .arg(cmdName(CMD_INCLUDE)));
+        location().fatal(tr("Too many nested '\\%1's").arg(cmdName(CMD_INCLUDE)));
 
     QString userFriendlyFilePath;
-    // ### use current directory?
+    QString filePath = Doc::config()->getIncludeFilePath(fileName);
+#if 0
     QString filePath = Config::findFile(location(),
                                         sourceFiles,
                                         sourceDirs,
                                         fileName,
                                         userFriendlyFilePath);
+#endif
     if (filePath.isEmpty()) {
         location().warning(tr("Cannot find qdoc include file '%1'").arg(fileName));
     }
@@ -3043,6 +3047,8 @@ const QStringMultiMap &Doc::metaTagMap() const
     return priv && priv->extra ? priv->extra->metaMap : *null_QStringMultiMap();
 }
 
+const Config* Doc::config_ = 0;
+
 void Doc::initialize(const Config& config)
 {
     DocParser::tabSize = config.getInt(CONFIG_TABSIZE);
@@ -3053,8 +3059,8 @@ void Doc::initialize(const Config& config)
     DocParser::quoting = config.getBool(CONFIG_QUOTINGINFORMATION);
 
     QmlClassNode::qmlOnly = config.getBool(CONFIG_QMLONLY);
-
     QStringMap reverseAliasMap;
+    config_ = &config;
 
     QSet<QString> commands = config.subVars(CONFIG_ALIAS);
     QSet<QString>::ConstIterator c = commands.constBegin();
diff --git a/src/tools/qdoc/doc.h b/src/tools/qdoc/doc.h
index bd3d623a050..65007634a6d 100644
--- a/src/tools/qdoc/doc.h
+++ b/src/tools/qdoc/doc.h
@@ -189,10 +189,12 @@ public:
                                      Quoter &quoter,
                                      const QString &fileName);
     static QString canonicalTitle(const QString &title);
+    static const Config* config() { return config_; }
 
 private:
     void detach();
     DocPrivate *priv;
+    static const Config* config_;
 };
 typedef QList<Doc> DocList;