diff --git a/.travis.yml b/.travis.yml
index 0353c041..27e0f9ce 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,7 @@
 language: cpp
 sudo: required
+services:
+    - docker
 os:
     - linux
     - osx
@@ -9,11 +11,8 @@ compiler:
 env:
     - CMAKE_PARAMETERS="-DUseQtFive=ON"
     - CMAKE_PARAMETERS="-DUseQtFive=OFF"
-#    - BUILDSYSTEM=outside
 matrix:
   fast_finish: true
-  allow_failures:
-    - env: CMAKE_PARAMETERS="-DUseQtFive=ON"
   exclude:
     - os: osx
       env: CMAKE_PARAMETERS="-DUseQtFive=ON"
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7e38383f..d9973882 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,8 +30,14 @@ option(UseQtFive "Build with Qt5 and libpoppler-qt5" OFF)
 if(UseQtFive)
 	#qt5
 	message(STATUS "Using Qt5 and libpoppler-qt5")
+<<<<<<< HEAD
      set(CMAKE_PREFIX_PATH "C:/Qt/Static/qtbase")
 	find_package(Qt5Core REQUIRED)
+=======
+	find_package(Qt5Core 5.1.1 REQUIRED)
+	# On lower versions, QTBUG-32100 prevents compilation at least on clang
+	# https://bugreports.qt.io/browse/QTBUG-32100
+>>>>>>> origin/master
 	find_package(Qt5Gui REQUIRED)
 	find_package(Qt5Widgets REQUIRED)
      find_package(Qt5XML REQUIRED)	
@@ -113,8 +119,13 @@ elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
 	add_definitions(-Wno-padded)
 	#   in release mode: Unrechable code / Macro expansion (these stem from QDEBUG)
 	if(NOT CMAKE_BUILD_TYPE STREQUAL "Debug" )
-		add_definitions(-Wno-unreachable-code -Wno-unreachable-code -Wno-disabled-macro-expansion)
+		add_definitions(-Wno-unreachable-code -Wno-disabled-macro-expansion)
 	endif()
+	#   Qt's moc (Meta Object Compiler) generates code that triggers warnings
+	#   about undefined behaviours.
+
+	#   So don't set Werror for it.
+	add_definitions(-Wno-error=undefined-reinterpret-cast)
 else()
 	message(WARNING "Compiling with a Non-GNU compiler. A lot less warnings will be output, so more coding errors might go undetected.")
 endif()
diff --git a/_travis/install_dependencies b/_travis/install_dependencies
index 9272d94e..91784e3a 100755
--- a/_travis/install_dependencies
+++ b/_travis/install_dependencies
@@ -12,9 +12,6 @@ if [ "$TRAVIS_OS_NAME" = "linux" ] ; then
 	# Update list of available packages in any case
 	DEPS="libboost-program-options-dev pkg-config"
 	if [ "$CMAKE_PARAMETERS" = "-DUseQtFive=ON" ] ; then
-		echo "Adding dannyedel ppa"
-		sudo add-apt-repository ppa:dannyedel/libpoppler-qt5-backports -y
-		sudo add-apt-repository ppa:ubuntu-sdk-team/ppa -y
 		DEPS="${DEPS} libpoppler-qt5-dev qtbase5-dev"
 	else
 		DEPS="${DEPS} libpoppler-qt4-dev"
diff --git a/pdfviewerwindow.cpp b/pdfviewerwindow.cpp
index c6a6c1c5..c77b171f 100644
--- a/pdfviewerwindow.cpp
+++ b/pdfviewerwindow.cpp
@@ -377,9 +377,7 @@ QString PDFViewerWindow::timeToString(const QTime & time) const
 
 QString PDFViewerWindow::timeToString(int milliseconds) const
 {
-  QTime time;
-  time.addMSecs(milliseconds);
-  return timeToString(time);
+  return timeToString(QTime(0,0).addMSecs(milliseconds));
 }