diff -urpN a/app-text/calibre/calibre-0.7.24.ebuild b/app-text/calibre/calibre-0.7.24.ebuild
--- a/app-text/calibre/calibre-0.7.24.ebuild	2010-10-21 12:08:09.000000000 +0100
+++ b/app-text/calibre/calibre-0.7.24.ebuild	2010-10-26 13:19:05.000000000 +0100
@@ -66,6 +66,9 @@ src_prepare() {
 		-i setup/install.py || die "sed'ing in the IMAGE path failed"
 
 	distutils_src_prepare
+
+	# PyQt4-4.8 compatibility - bug #342751
+	epatch "${FILESDIR}/${PN}-0.7.24-PyQt4-4.8-fix.patch"
 }
 
 src_install() {
diff -urpN a/app-text/calibre/files/calibre-0.7.24-PyQt4-4.8-fix.patch b/app-text/calibre/files/calibre-0.7.24-PyQt4-4.8-fix.patch
--- a/app-text/calibre/files/calibre-0.7.24-PyQt4-4.8-fix.patch	1970-01-01 01:00:00.000000000 +0100
+++ b/app-text/calibre/files/calibre-0.7.24-PyQt4-4.8-fix.patch	2010-10-26 13:06:59.000000000 +0100
@@ -0,0 +1,339 @@
+=== modified file 'src/calibre/gui2/lrf_renderer/main.ui'
+--- src/calibre/gui2/lrf_renderer/main.ui	2010-09-04 18:03:44 +0000
++++ src/calibre/gui2/lrf_renderer/main.ui	2010-10-24 16:16:16 +0000
+@@ -1,7 +1,8 @@
+-<ui version="4.0" >
++<?xml version="1.0" encoding="UTF-8"?>
++<ui version="4.0">
+  <class>MainWindow</class>
+- <widget class="QMainWindow" name="MainWindow" >
+-  <property name="geometry" >
++ <widget class="QMainWindow" name="MainWindow">
++  <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+@@ -9,75 +10,51 @@
+     <height>701</height>
+    </rect>
+   </property>
+-  <property name="sizePolicy" >
+-   <sizepolicy vsizetype="Minimum" hsizetype="Minimum" >
++  <property name="sizePolicy">
++   <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+     <horstretch>0</horstretch>
+     <verstretch>0</verstretch>
+    </sizepolicy>
+   </property>
+-  <property name="windowTitle" >
++  <property name="windowTitle">
+    <string>LRF Viewer</string>
+   </property>
+-  <property name="windowIcon" >
+-   <iconset resource="../../../../resources/images.qrc" >
++  <property name="windowIcon">
++   <iconset>
+     <normaloff>:/images/viewer.png</normaloff>:/images/viewer.png</iconset>
+   </property>
+-  <widget class="QWidget" name="central_widget" >
+-   <property name="geometry" >
+-    <rect>
+-     <x>0</x>
+-     <y>39</y>
+-     <width>601</width>
+-     <height>662</height>
+-    </rect>
+-   </property>
+-   <layout class="QVBoxLayout" >
+-    <property name="margin" >
++  <widget class="QWidget" name="central_widget">
++   <layout class="QVBoxLayout">
++    <property name="margin">
+      <number>0</number>
+     </property>
+     <item>
+-     <widget class="QStackedWidget" name="stack" >
+-      <property name="currentIndex" >
++     <widget class="QStackedWidget" name="stack">
++      <property name="currentIndex">
+        <number>0</number>
+       </property>
+-      <widget class="QWidget" name="viewer_page" >
+-       <property name="geometry" >
+-        <rect>
+-         <x>0</x>
+-         <y>0</y>
+-         <width>601</width>
+-         <height>662</height>
+-        </rect>
+-       </property>
+-       <layout class="QGridLayout" >
+-        <property name="margin" >
++      <widget class="QWidget" name="viewer_page">
++       <layout class="QGridLayout">
++        <property name="margin">
+          <number>0</number>
+         </property>
+-        <item row="0" column="0" >
+-         <widget class="BookView" name="graphics_view" >
+-          <property name="mouseTracking" >
++        <item row="0" column="0">
++         <widget class="BookView" name="graphics_view">
++          <property name="mouseTracking">
+            <bool>true</bool>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </widget>
+-      <widget class="QWidget" name="bar_page" >
+-       <property name="geometry" >
+-        <rect>
+-         <x>0</x>
+-         <y>0</y>
+-         <width>601</width>
+-         <height>701</height>
+-        </rect>
+-       </property>
+-       <layout class="QVBoxLayout" >
++      <widget class="QWidget" name="bar_page">
++       <layout class="QVBoxLayout">
+         <item>
+          <spacer>
+-          <property name="orientation" >
++          <property name="orientation">
+            <enum>Qt::Vertical</enum>
+           </property>
+-          <property name="sizeHint" stdset="0" >
++          <property name="sizeHint" stdset="0">
+            <size>
+             <width>20</width>
+             <height>40</height>
+@@ -86,34 +63,34 @@
+          </spacer>
+         </item>
+         <item>
+-         <widget class="QFrame" name="frame_2" >
+-          <property name="frameShape" >
++         <widget class="QFrame" name="frame_2">
++          <property name="frameShape">
+            <enum>QFrame::StyledPanel</enum>
+           </property>
+-          <property name="frameShadow" >
++          <property name="frameShadow">
+            <enum>QFrame::Raised</enum>
+           </property>
+-          <layout class="QVBoxLayout" >
++          <layout class="QVBoxLayout">
+            <item>
+-            <widget class="QProgressBar" name="progress_bar" >
+-             <property name="maximum" >
++            <widget class="QProgressBar" name="progress_bar">
++             <property name="maximum">
+               <number>0</number>
+              </property>
+-             <property name="value" >
++             <property name="value">
+               <number>-1</number>
+              </property>
+             </widget>
+            </item>
+            <item>
+-            <widget class="QLabel" name="progress_label" >
+-             <property name="font" >
++            <widget class="QLabel" name="progress_label">
++             <property name="font">
+               <font>
+                <pointsize>11</pointsize>
+                <weight>75</weight>
+                <bold>true</bold>
+               </font>
+              </property>
+-             <property name="text" >
++             <property name="text">
+               <string>Parsing LRF file</string>
+              </property>
+             </widget>
+@@ -123,10 +100,10 @@
+         </item>
+         <item>
+          <spacer>
+-          <property name="orientation" >
++          <property name="orientation">
+            <enum>Qt::Vertical</enum>
+           </property>
+-          <property name="sizeHint" stdset="0" >
++          <property name="sizeHint" stdset="0">
+            <size>
+             <width>20</width>
+             <height>40</height>
+@@ -140,93 +117,85 @@
+     </item>
+    </layout>
+   </widget>
+-  <widget class="QToolBar" name="tool_bar" >
+-   <property name="geometry" >
+-    <rect>
+-     <x>0</x>
+-     <y>0</y>
+-     <width>601</width>
+-     <height>39</height>
+-    </rect>
+-   </property>
+-   <property name="windowTitle" >
++  <widget class="QToolBar" name="tool_bar">
++   <property name="windowTitle">
+     <string>LRF Viewer toolbar</string>
+    </property>
+-   <property name="allowedAreas" >
++   <property name="allowedAreas">
+     <set>Qt::AllToolBarAreas</set>
+    </property>
+-   <attribute name="toolBarArea" >
+-    <enum>TopToolBarArea</enum>
+-   </attribute>
+-   <attribute name="toolBarBreak" >
+-    <bool>true</bool>
+-   </attribute>
+-   <addaction name="action_back" />
+-   <addaction name="action_forward" />
+-   <addaction name="separator" />
+-   <addaction name="action_open_ebook" />
+-   <addaction name="action_configure" />
+-   <addaction name="separator" />
+-   <addaction name="action_previous_page" />
+-   <addaction name="action_next_page" />
+-   <addaction name="separator" />
++   <attribute name="toolBarArea">
++    <enum>Qt::TopToolBarArea</enum>
++   </attribute>
++   <attribute name="toolBarBreak">
++    <bool>false</bool>
++   </attribute>
++   <addaction name="action_back"/>
++   <addaction name="action_forward"/>
++   <addaction name="separator"/>
++   <addaction name="action_open_ebook"/>
++   <addaction name="action_configure"/>
++   <addaction name="separator"/>
++   <addaction name="action_previous_page"/>
++   <addaction name="action_next_page"/>
++   <addaction name="separator"/>
+   </widget>
+-  <action name="action_next_page" >
+-   <property name="icon" >
+-    <iconset resource="../../../../resources/images.qrc" >
++  <action name="action_next_page">
++   <property name="icon">
++    <iconset>
+      <normaloff>:/images/next.png</normaloff>:/images/next.png</iconset>
+    </property>
+-   <property name="text" >
++   <property name="text">
+     <string>Next Page</string>
+    </property>
+   </action>
+-  <action name="action_previous_page" >
+-   <property name="icon" >
+-    <iconset resource="../../../../resources/images.qrc" >
++  <action name="action_previous_page">
++   <property name="icon">
++    <iconset>
+      <normaloff>:/images/previous.png</normaloff>:/images/previous.png</iconset>
+    </property>
+-   <property name="text" >
++   <property name="text">
+     <string>Previous Page</string>
+    </property>
+   </action>
+-  <action name="action_back" >
+-   <property name="icon" >
+-    <iconset resource="../../../../resources/images.qrc" >
++  <action name="action_back">
++   <property name="icon">
++    <iconset>
+      <normaloff>:/images/back.png</normaloff>:/images/back.png</iconset>
+    </property>
+-   <property name="text" >
++   <property name="text">
+     <string>Back</string>
+    </property>
+   </action>
+-  <action name="action_forward" >
+-   <property name="icon" >
+-    <iconset resource="../../../../resources/images.qrc" >
++  <action name="action_forward">
++   <property name="icon">
++    <iconset>
+      <normaloff>:/images/forward.png</normaloff>:/images/forward.png</iconset>
+    </property>
+-   <property name="text" >
++   <property name="text">
+     <string>Forward</string>
+    </property>
+   </action>
+-  <action name="action_next_match" >
+-   <property name="text" >
++  <action name="action_next_match">
++   <property name="text">
+     <string>Next match</string>
+    </property>
+   </action>
+-  <action name="action_open_ebook" >
+-   <property name="icon" >
+-    <iconset resource="../../../../resources/images.qrc" >
++  <action name="action_open_ebook">
++   <property name="icon">
++    <iconset>
+      <normaloff>:/images/document_open.png</normaloff>:/images/document_open.png</iconset>
+    </property>
+-   <property name="text" >
++   <property name="text">
+     <string>Open ebook</string>
+    </property>
+   </action>
+-  <action name="action_configure" >
+-   <property name="icon" >
+-    <iconset resource="../../../../resources/images.qrc" >
++  <action name="action_configure">
++   <property name="icon">
++    <iconset>
+      <normaloff>:/images/config.png</normaloff>:/images/config.png</iconset>
+    </property>
+-   <property name="text" >
++   <property name="text">
+     <string>Configure</string>
+    </property>
+   </action>
+@@ -239,7 +208,7 @@
+   </customwidget>
+  </customwidgets>
+  <resources>
+-  <include location="../../../../resources/images.qrc" />
++  <include location="../../../../resources/images.qrc"/>
+  </resources>
+  <connections/>
+ </ui>
+
+=== modified file 'src/calibre/gui2/viewer/main.ui'
+--- src/calibre/gui2/viewer/main.ui	2010-09-04 18:03:44 +0000
++++ src/calibre/gui2/viewer/main.ui	2010-10-24 16:16:16 +0000
+@@ -108,7 +108,7 @@
+     </size>
+    </property>
+    <attribute name="toolBarArea">
+-    <enum>LeftToolBarArea</enum>
++    <enum>Qt::LeftToolBarArea</enum>
+    </attribute>
+    <attribute name="toolBarBreak">
+     <bool>false</bool>
+@@ -136,7 +136,7 @@
+   </widget>
+   <widget class="QToolBar" name="tool_bar2">
+    <attribute name="toolBarArea">
+-    <enum>TopToolBarArea</enum>
++    <enum>Qt::TopToolBarArea</enum>
+    </attribute>
+    <attribute name="toolBarBreak">
+     <bool>false</bool>
+