diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,6 +13,17 @@
 include(ECMPoQmTools)
 
 find_package(Qt5 ${QT_REQUIRED_VERSION} CONFIG REQUIRED Core Gui Widgets Qml Test)
+find_package(KF5 REQUIRED COMPONENTS
+    AkonadiCalendar
+    AkonadiNotes
+    AkonadiSearch
+    IdentityManagement
+    KontactInterface
+    Ldap
+    Runner
+    Wallet
+)
+find_package(KF5Akonadi "5.1" CONFIG REQUIRED)
 find_package(Boost REQUIRED)
 macro(assert_min_ver version)
     set(error_msg "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_VERSION} not supported")
@@ -32,7 +43,11 @@
 endif()
 
 if(UNIX)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
+    if("${CMAKE_CXX_COMPILER_VERSION}" VERSION_LESS "5.0.0.0")
+       set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y")
+    else()
+       set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
+    endif()
     set(CMAKE_CXX_STANDARD 14) # Enable C++14, with cmake >= 3.1
     set(CMAKE_CXX_EXTENSIONS OFF) # Don't enable gcc-specific extensions
 endif()
@@ -61,18 +76,6 @@
     3rdparty/kdepim/libkdepim/
 )
 
-find_package(KF5 REQUIRED COMPONENTS
-    AkonadiCalendar
-    AkonadiNotes
-    AkonadiSearch
-    IdentityManagement
-    KontactInterface
-    Ldap
-    Runner
-    Wallet
-)
-find_package(KF5Akonadi "5.1" CONFIG REQUIRED)
-
 add_subdirectory(3rdparty)
 add_subdirectory(src)
 
diff --git a/src/widgets/applicationcomponents.cpp b/src/widgets/applicationcomponents.cpp
--- a/src/widgets/applicationcomponents.cpp
+++ b/src/widgets/applicationcomponents.cpp
@@ -112,7 +112,7 @@
         ApplicationComponents *self = const_cast<ApplicationComponents*>(this);
         self->m_availablePagesView = availablePagesView;
 
-        connect(self->m_availablePagesView, &AvailablePagesView::currentPageChanged, self, &ApplicationComponents::onCurrentPageChanged);
+        connect(self->m_availablePagesView.data(), &AvailablePagesView::currentPageChanged, self, &ApplicationComponents::onCurrentPageChanged);
     }
 
     return m_availablePagesView;