diff --git a/CMakeLists.txt b/CMakeLists.txt
index 76ed13dd..dbd92dc0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ project(QCA)
 cmake_minimum_required(VERSION 2.4.5)
 
 option(BUILD_TESTS "Create test" ON)
-option(QCA_INSTALL_IN_QT_PREFIX "Install QCA in the Qt prefix instead of the Install prefix" OFF)
+option(QCA_INSTALL_IN_QT_PREFIX "Install QCA in the Qt prefix instead of the Install prefix" ON)
 
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules" )
 
@@ -23,22 +23,20 @@ if (Qt5Core_FOUND)
 
   include(GNUInstallDirs)
   setup_qt5_dirs()
-  set(LIB_INSTALL_DIR "${CMAKE_INSTALL_LIBDIR}")
-  set(QCA_LIB_SUFFIX "qt5" CACHE STRING "Qca library suffix")
 else()
   set(QT_MIN_VERSION "4.7.0")
   find_package(Qt4 REQUIRED)
   # properly set up compile flags (QT_DEBUG/QT_NO_DEBUG, ...)
   include(${QT_USE_FILE})
-  set(QCA_LIB_SUFFIX "" CACHE STRING "Qca library suffix")
-  set(LIB_SUFFIX "" CACHE STRING "Define suffix of directory name (32/64)" )
-  set(LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}" CACHE PATH "Directory where lib will install")
 endif()
+set(LIB_SUFFIX "" CACHE STRING "Define suffix of directory name (32/64)" )
+set(LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}" CACHE PATH "Directory where lib will install")
 
 set(QCA_LIB_MAJOR_VERSION "2")
 set(QCA_LIB_MINOR_VERSION "0")
 set(QCA_LIB_PATCH_VERSION "3")
 
+set(QCA_LIB_SUFFIX "" CACHE STRING "Qca library suffix")
 if(QCA_LIB_SUFFIX)
   set(QCA_LIB_NAME qca-${QCA_LIB_SUFFIX})
   set(QCA_MANPAGE_NAME qcatool2-${QCA_LIB_SUFFIX}.1)
@@ -91,11 +89,9 @@ set(CMAKE_INCLUDE_DIRECTORIES_PROJECT_BEFORE ON)
 set(qca_INCLUDEDIR "${CMAKE_CURRENT_SOURCE_DIR}/include" )
 set(LIBRARY_OUTPUT_PATH "${CMAKE_BINARY_DIR}/lib${LIB_SUFFIX}" )
 
-set(QCA_PLUGIN_SUBDIR "${QCA_LIB_NAME}")
-
 if( QCA_INSTALL_IN_QT_PREFIX )
   set(QCA_PREFIX_INSTALL_DIR "${QT_PREFIX_DIR}" CACHE PATH "Directory where qca will install")
-  set(QCA_PLUGINS_INSTALL_DIR "${QT_PLUGINS_DIR}/${QCA_PLUGIN_SUBDIR}" CACHE PATH "Directory where qca plugins will install")
+  set(QCA_PLUGINS_INSTALL_DIR "${QT_PLUGINS_DIR}/crypto" CACHE PATH "Directory where qca plugins will install")
   set(QCA_BINARY_INSTALL_DIR "${QT_BINARY_DIR}" CACHE PATH "Directory where qca plugins will install")
   set(QCA_LIBRARY_INSTALL_DIR "${QT_LIBRARY_DIR}" CACHE PATH "Directory where qca library will install")
   set(QCA_FEATURE_INSTALL_DIR "${QT_MKSPECS_DIR}/features" CACHE PATH "Directory where qca feature file will install")
@@ -105,12 +101,16 @@ if( QCA_INSTALL_IN_QT_PREFIX )
   set(QCA_MAN_INSTALL_DIR "${QT_DATA_DIR}/man" CACHE PATH "Directory where qca man pages will install")
 else( QCA_INSTALL_IN_QT_PREFIX )
   set(QCA_PREFIX_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}" CACHE PATH "Directory where qca will install")
-  set(QCA_PLUGINS_INSTALL_DIR "${LIB_INSTALL_DIR}/plugins/${QCA_PLUGIN_SUBDIR}" CACHE PATH "Directory where qca plugins will install")
+  if (Qt5Core_FOUND)
+    set(QCA_PLUGINS_INSTALL_DIR "${LIB_INSTALL_DIR}/qt5/plugins/crypto" CACHE PATH "Directory where qca plugins will install")
+  else (Qt5Core_FOUND)
+    set(QCA_PLUGINS_INSTALL_DIR "${LIB_INSTALL_DIR}/qt4/plugins/crypto" CACHE PATH "Directory where qca plugins will install")
+  endif (Qt5Core_FOUND)
   set(QCA_BINARY_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Directory where qca plugins will install")
   set(QCA_LIBRARY_INSTALL_DIR "${LIB_INSTALL_DIR}" CACHE PATH "Directory where qca library will install")
-  set(QCA_FEATURE_INSTALL_DIR "${QT_MKSPECS_DIR}/features" CACHE PATH "Directory where qca feature file will install")
-  set(QCA_INCLUDE_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/include/${QCA_LIB_SUFFIX}" CACHE PATH "Directory where qca public headers will install")
-  set(QCA_PRIVATE_INCLUDE_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/include/${QCA_LIB_SUFFIX}" CACHE PATH "Directory where qca headers will install")
+  set(QCA_FEATURE_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/mkspecs/features" CACHE PATH "Directory where qca feature file will install")
+  set(QCA_INCLUDE_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/include" CACHE PATH "Directory where qca public headers will install")
+  set(QCA_PRIVATE_INCLUDE_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/include" CACHE PATH "Directory where qca headers will install")
   set(QCA_DOC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/share/doc/qca/html" CACHE PATH "Directory where qca documentation will install")
   set(QCA_MAN_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/share/man" CACHE PATH "Directory where qca man pages will install")
 endif( QCA_INSTALL_IN_QT_PREFIX )
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 95823cb5..037c9ffe 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -15,8 +15,6 @@ if(NOT MLOCK_TAKES_VOID)
   ADD_DEFINITIONS(-DMLOCK_NOT_VOID_PTR)
 endif(NOT MLOCK_TAKES_VOID)
 
-configure_file(config-qca.h.cmake "${CMAKE_CURRENT_BINARY_DIR}/config-qca.h" @ONLY)
-
 # base source files
 
 
diff --git a/src/config-qca.h.cmake b/src/config-qca.h.cmake
deleted file mode 100644
index cc098a67..00000000
--- a/src/config-qca.h.cmake
+++ /dev/null
@@ -1 +0,0 @@
-#cmakedefine QCA_PLUGIN_SUBDIR "@QCA_PLUGIN_SUBDIR@"
diff --git a/src/qca_plugin.cpp b/src/qca_plugin.cpp
index 2d359dbb..ad810b9e 100644
--- a/src/qca_plugin.cpp
+++ b/src/qca_plugin.cpp
@@ -26,7 +26,7 @@
 //   the provider.
 
 #include "qca_plugin.h"
-#include "config-qca.h"
+
 #include "qcaprovider.h"
 
 #include <QCoreApplication>
@@ -35,6 +35,7 @@
 #include <QLibrary>
 #include <QPluginLoader>
 
+#define PLUGIN_SUBDIR "crypto"
 
 namespace QCA {
 
@@ -373,7 +374,7 @@ void ProviderManager::scan()
 	{
 		logDebug(QString("Checking Qt Library Path: %1").arg(*it));
 		QDir libpath(*it);
-		QDir dir(libpath.filePath(QCA_PLUGIN_SUBDIR));
+		QDir dir(libpath.filePath(PLUGIN_SUBDIR));
 		if(!dir.exists())
 		{
 			logDebug("  (No 'crypto' subdirectory)");