diff -uar akonadi-1.12.91.orig/AkonadiConfig.cmake.in akonadi-1.12.91/AkonadiConfig.cmake.in
--- akonadi-1.12.91.orig/AkonadiConfig.cmake.in	2014-07-09 22:14:29.000000000 +0200
+++ akonadi-1.12.91/AkonadiConfig.cmake.in	2014-07-29 09:18:23.555430363 +0200
@@ -32,7 +32,7 @@
 set(AKONADI_TARGET_PREFIX @AKONADI_TARGET_PREFIX@)
 
 # Load the exported targets.
-if(NOT TARGET Akonadi__akonadiprotocolinternals)
+if(NOT TARGET Akonadi__akonadiprotocolinternalsqt5)
   get_filename_component(_currentDir "${CMAKE_CURRENT_LIST_FILE}" PATH)
   include("${_currentDir}/AkonadiTargetsWithPrefix.cmake")
 endif()
@@ -41,4 +41,4 @@
   set(AKONADI_${_prefix}_LIBRARIES    ${AKONADI_TARGET_PREFIX}${_lib})
 endmacro()
 
-_akonadi_set_lib_vars(COMMON akonadiprotocolinternals)
+_akonadi_set_lib_vars(COMMON akonadiprotocolinternalsqt5)
diff -uar akonadi-1.12.91.orig/CMakeLists.txt akonadi-1.12.91/CMakeLists.txt
--- akonadi-1.12.91.orig/CMakeLists.txt	2014-07-09 22:14:29.000000000 +0200
+++ akonadi-1.12.91/CMakeLists.txt	2014-07-29 09:18:23.588430155 +0200
@@ -332,7 +332,7 @@
 
 add_subdirectory(interfaces)
 add_subdirectory(libs)
-set(AKONADI_PROTOCOLINTERNALS_LIBS ${akonadiprotocolinternals_LIB_DEPENDS} akonadiprotocolinternals)
+set(AKONADI_PROTOCOLINTERNALS_LIBS ${akonadiprotocolinternals_LIB_DEPENDS} akonadiprotocolinternalsqt5)
 
 add_subdirectory(shared)
 add_subdirectory(agentserver)
Only in akonadi-1.12.91: CMakeLists.txt.orig
diff -uar akonadi-1.12.91.orig/akonadi.pc.cmake akonadi-1.12.91/akonadi.pc.cmake
--- akonadi-1.12.91.orig/akonadi.pc.cmake	2014-07-09 22:14:29.000000000 +0200
+++ akonadi-1.12.91/akonadi.pc.cmake	2014-07-29 09:18:23.645430154 +0200
@@ -7,5 +7,5 @@
 Description: Akonadi server and infrastructure needed to build client libraries and applications
 Version: @AKONADI_VERSION@
 Requires: QtCore QtSql QtDBus
-Libs: -L${libdir} -lakonadiprotocolinternals
+Libs: -L${libdir} -lakonadiprotocolinternalsqt5
 Cflags: -I${includedir}
diff -uar akonadi-1.12.91.orig/asapcat/CMakeLists.txt akonadi-1.12.91/asapcat/CMakeLists.txt
--- akonadi-1.12.91.orig/asapcat/CMakeLists.txt	2014-07-09 22:14:29.000000000 +0200
+++ akonadi-1.12.91/asapcat/CMakeLists.txt	2014-07-29 09:18:23.672430153 +0200
@@ -1,7 +1,7 @@
 project(asapcat)
 
 #set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${_ENABLE_EXCEPTIONS}" )
-set(AKONADI_PROTOCOLINTERNALS_LIBS ${akonadiprotocolinternals_LIB_DEPENDS} akonadiprotocolinternals)
+set(AKONADI_PROTOCOLINTERNALS_LIBS ${akonadiprotocolinternals_LIB_DEPENDS} akonadiprotocolinternalsqt5)
 
 set(asapcat_srcs
   main.cpp
diff -uar akonadi-1.12.91.orig/libs/CMakeLists.txt akonadi-1.12.91/libs/CMakeLists.txt
--- akonadi-1.12.91.orig/libs/CMakeLists.txt	2014-07-09 22:14:29.000000000 +0200
+++ akonadi-1.12.91/libs/CMakeLists.txt	2014-07-29 09:20:29.132426304 +0200
@@ -12,16 +12,16 @@
   xdgbasedirs.cpp
 )
 
-add_library(akonadiprotocolinternals ${LIBRARY_TYPE} ${akonadiprotocolinternals_srcs})
+add_library(akonadiprotocolinternalsqt5 ${LIBRARY_TYPE} ${akonadiprotocolinternals_srcs})
 
-target_link_libraries(akonadiprotocolinternals ${QT_QTCORE_LIBRARY} ${QT_QTDBUS_LIBRARY})
-set_target_properties(akonadiprotocolinternals PROPERTIES
+target_link_libraries(akonadiprotocolinternalsqt5 ${QT_QTCORE_LIBRARY} ${QT_QTDBUS_LIBRARY})
+set_target_properties(akonadiprotocolinternalsqt5 PROPERTIES
                         VERSION ${AKONADI_VERSION}
                         SOVERSION ${AKONADI_SOVERSION}
                         DEFINE_SYMBOL MAKE_AKONADIPROTOCOLINTERNALS_LIB
                       )
 
-install(TARGETS akonadiprotocolinternals EXPORT akonadiLibraryTargets ${INSTALL_TARGETS_DEFAULT_ARGS})
+install(TARGETS akonadiprotocolinternalsqt5 EXPORT akonadiLibraryTargets ${INSTALL_TARGETS_DEFAULT_ARGS})
 
 install(FILES
   ${Akonadi_BINARY_DIR}/akonadiprotocolinternals_export.h
diff -uar akonadi-1.12.91.orig/libs/tests/CMakeLists.txt akonadi-1.12.91/libs/tests/CMakeLists.txt
--- akonadi-1.12.91.orig/libs/tests/CMakeLists.txt	2014-07-09 22:14:29.000000000 +0200
+++ akonadi-1.12.91/libs/tests/CMakeLists.txt	2014-07-29 09:18:23.729430152 +0200
@@ -6,7 +6,7 @@
   get_filename_component(_name ${_source} NAME_WE)
   add_executable(${_name} ${_source})
   add_test(akonadi-${_name} ${_name})
-  target_link_libraries(${_name} akonadiprotocolinternals ${QT_QTGUI_LIBRARY} ${QT_QTTEST_LIBRARIES})
+  target_link_libraries(${_name} akonadiprotocolinternalsqt5 ${QT_QTGUI_LIBRARY} ${QT_QTTEST_LIBRARIES})
 endmacro()
 
 add_unit_test(notificationmessagetest.cpp)
diff -uar akonadi-1.12.91.orig/rds/CMakeLists.txt akonadi-1.12.91/rds/CMakeLists.txt
--- akonadi-1.12.91.orig/rds/CMakeLists.txt	2014-07-09 22:14:29.000000000 +0200
+++ akonadi-1.12.91/rds/CMakeLists.txt	2014-07-29 09:18:23.758430151 +0200
@@ -1,7 +1,7 @@
 project(akonadi_rds)
 
 #set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${_ENABLE_EXCEPTIONS}" )
-set(AKONADI_PROTOCOLINTERNALS_LIBS ${akonadiprotocolinternals_LIB_DEPENDS} akonadiprotocolinternals)
+set(AKONADI_PROTOCOLINTERNALS_LIBS ${akonadiprotocolinternals_LIB_DEPENDS} akonadiprotocolinternalsqt5)
 
 ########### next target ###############
 
diff -uar akonadi-1.12.91.orig/server/akonadictl/CMakeLists.txt akonadi-1.12.91/server/akonadictl/CMakeLists.txt
--- akonadi-1.12.91.orig/server/akonadictl/CMakeLists.txt	2014-07-09 22:14:29.000000000 +0200
+++ akonadi-1.12.91/server/akonadictl/CMakeLists.txt	2014-07-29 09:18:23.788430150 +0200
@@ -16,7 +16,7 @@
 set_target_properties(akonadictl PROPERTIES OUTPUT_NAME akonadictl)
 target_link_libraries(akonadictl 
   akonadi_shared
-  akonadiprotocolinternals
+  akonadiprotocolinternalsqt5
   ${QT_QTCORE_LIBRARY}
   ${QT_QTDBUS_LIBRARY}
   ${AKONADI_PROTOCOLINTERNALS_LIBS}