diff --git a/qucs/config.h.cmake b/qucs/config.h.cmake
index 567ddb1e4a..cab35aebfb 100755
--- a/qucs/config.h.cmake
+++ b/qucs/config.h.cmake
@@ -1,5 +1,3 @@
-#cmakedefine LANGUAGEDIR "@LANGUAGEDIR@"
-#cmakedefine LIBRARYDIR "@LIBRARYDIR@"
 
 #define PACKAGE_VERSION "@PROJECT_VERSION@"
 #define PACKAGE_STRING "qucs @PROJECT_VERSION@"
diff --git a/qucs/configure.ac b/qucs/configure.ac
index 99d045cb51..3f6c8265e0 100644
--- a/qucs/configure.ac
+++ b/qucs/configure.ac
@@ -764,16 +764,6 @@ mingw* | *msys* | cygwin*)
 esac
 AC_SUBST(PATHXFORM)
 
-dnl Create path info.
-LANG_PATH="$prefix/share/qucs/lang/"
-AC_DEFINE_UNQUOTED([LANGUAGEDIR], ["$LANG_PATH"],
-  [Where the language files go.])
-unset LANG_PATH
-LIBRARY_PATH="$prefix/share/qucs/library/"
-AC_DEFINE_UNQUOTED([LIBRARYDIR], ["$LIBRARY_PATH"],
-  [Where the component library files go.])
-unset LIBRARY_PATH
-
 dnl Definitions at top of <config.h>.
 AH_TOP([
 /* __BEGIN_DECLS should be used at the beginning of your declarations,
diff --git a/qucs/qucs-activefilter/CMakeLists.txt b/qucs/qucs-activefilter/CMakeLists.txt
index 913cb9ecde..12a06494a1 100644
--- a/qucs/qucs-activefilter/CMakeLists.txt
+++ b/qucs/qucs-activefilter/CMakeLists.txt
@@ -25,9 +25,6 @@ IF(NOT WIN32)
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated-register ")
 ENDIF()
 
-# define variables
-SET(LANGUAGEDIR "${CMAKE_INSTALL_PREFIX}/share/qucs/lang/")
-
 #configure the header config.h
 CONFIGURE_FILE (
     "${PROJECT_SOURCE_DIR}/../config.h.cmake"
diff --git a/qucs/qucs-activefilter/main.cpp b/qucs/qucs-activefilter/main.cpp
index 73bd67da87..6f81a2e1aa 100644
--- a/qucs/qucs-activefilter/main.cpp
+++ b/qucs/qucs-activefilter/main.cpp
@@ -63,7 +63,7 @@ bool saveApplSettings(QucsActiveFilter *qucs)
 
 int main(int argc, char *argv[])
 {
-  QString LangDir;
+    QString LangDir;
     // apply default settings
     QucsSettings.x = 200;
     QucsSettings.y = 100;
@@ -72,13 +72,21 @@ int main(int argc, char *argv[])
 
     // is application relocated?
     char * var = getenv ("QUCSDIR");
+    QDir QucsDir;
     if (var != NULL) {
-      QDir QucsDir = QDir (var);
+      QucsDir = QDir (var);
       QString QucsDirStr = QucsDir.canonicalPath ();
       LangDir =
         QDir::convertSeparators (QucsDirStr + "/share/qucs/lang/");
     } else {
-      LangDir = LANGUAGEDIR;
+      QString QucsApplicationPath = QCoreApplication::applicationDirPath();
+#ifdef __APPLE__
+      QucsDir = QDir(QucsApplicationPath.section("/bin",0,0));
+#else
+      QucsDir = QDir(QucsApplicationPath);
+      QucsDir.cdUp();
+#endif
+      LangDir = QucsDir.canonicalPath() + "/share/qucs/lang/";
     }
 
     loadSettings();
diff --git a/qucs/qucs-attenuator/CMakeLists.txt b/qucs/qucs-attenuator/CMakeLists.txt
index 49b56bee1e..3466ebacf5 100644
--- a/qucs/qucs-attenuator/CMakeLists.txt
+++ b/qucs/qucs-attenuator/CMakeLists.txt
@@ -17,9 +17,6 @@ SET(CMAKE_BUILD_TYPE Debug)
 
 ADD_DEFINITIONS( -DHAVE_CONFIG_H )
 
-# define variables
-SET(LANGUAGEDIR "${CMAKE_INSTALL_PREFIX}/share/qucs/lang/")
-
 # configure the header config.h
 CONFIGURE_FILE (
     "${PROJECT_SOURCE_DIR}/../config.h.cmake"
diff --git a/qucs/qucs-attenuator/main.cpp b/qucs/qucs-attenuator/main.cpp
index c431107a6e..bec266af82 100644
--- a/qucs/qucs-attenuator/main.cpp
+++ b/qucs/qucs-attenuator/main.cpp
@@ -71,13 +71,21 @@ int main( int argc, char ** argv )
 
   // is application relocated?
   char * var = getenv ("QUCSDIR");
+  QDir QucsDir;
   if (var != NULL) {
-    QDir QucsDir = QDir (var);
+    QucsDir = QDir (var);
     QString QucsDirStr = QucsDir.canonicalPath ();
     QucsSettings.LangDir =
       QDir::convertSeparators (QucsDirStr + "/share/qucs/lang/");
   } else {
-    QucsSettings.LangDir = LANGUAGEDIR;
+    QString QucsApplicationPath = QCoreApplication::applicationDirPath();
+#ifdef __APPLE__
+    QucsDir = QDir(QucsApplicationPath.section("/bin",0,0));
+#else
+    QucsDir = QDir(QucsApplicationPath);
+    QucsDir.cdUp();
+#endif
+    QucsSettings.LangDir = QucsDir.canonicalPath() + "/share/qucs/lang/";
   }
 
   loadSettings();
diff --git a/qucs/qucs-edit/CMakeLists.txt b/qucs/qucs-edit/CMakeLists.txt
index b5bdddcb0e..4d24714dda 100644
--- a/qucs/qucs-edit/CMakeLists.txt
+++ b/qucs/qucs-edit/CMakeLists.txt
@@ -17,9 +17,6 @@ SET(CMAKE_BUILD_TYPE Debug)
 
 ADD_DEFINITIONS( -DHAVE_CONFIG_H )
 
-# define variables
-SET(LANGUAGEDIR "${CMAKE_INSTALL_PREFIX}/share/qucs/lang/")
-
 # configure the header config.h
 CONFIGURE_FILE (
     "${PROJECT_SOURCE_DIR}/../config.h.cmake"
diff --git a/qucs/qucs-edit/main.cpp b/qucs/qucs-edit/main.cpp
index 7d5ed91219..a441d318ae 100644
--- a/qucs/qucs-edit/main.cpp
+++ b/qucs/qucs-edit/main.cpp
@@ -99,13 +99,21 @@ int main(int argc, char *argv[])
 
   // is application relocated?
   char * var = getenv ("QUCSDIR");
+  QDir QucsDir;
   if (var != NULL) {
-    QDir QucsDir = QDir (var);
+    QucsDir = QDir (var);
     QString QucsDirStr = QucsDir.canonicalPath ();
     QucsSettings.LangDir =
       QDir::convertSeparators (QucsDirStr + "/share/qucs/lang/");
   } else {
-    QucsSettings.LangDir = LANGUAGEDIR;
+    QString QucsApplicationPath = QCoreApplication::applicationDirPath();
+#ifdef __APPLE__
+    QucsDir = QDir(QucsApplicationPath.section("/bin",0,0));
+#else
+    QucsDir = QDir(QucsApplicationPath);
+    QucsDir.cdUp();
+#endif
+    QucsSettings.LangDir = QucsDir.canonicalPath() + "/share/qucs/lang/";
   }
 
   loadSettings();
diff --git a/qucs/qucs-filter-v2/CMakeLists.txt b/qucs/qucs-filter-v2/CMakeLists.txt
index efdb441434..9f90cb4bba 100644
--- a/qucs/qucs-filter-v2/CMakeLists.txt
+++ b/qucs/qucs-filter-v2/CMakeLists.txt
@@ -2,8 +2,6 @@ PROJECT(qucsfilter-v2 CXX C)
 CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
 cmake_policy(VERSION 2.6)
 
-SET(LANGUAGEDIR TRUE)
-
 SET(CMAKE_BUILD_TYPE Debug)
 
 # The incomplete filter-v2 only builds withs -stdlib=libstc++
diff --git a/qucs/qucs-filter-v2/qf_main.cpp b/qucs/qucs-filter-v2/qf_main.cpp
index cd035d9f74..a7bcf4e989 100644
--- a/qucs/qucs-filter-v2/qf_main.cpp
+++ b/qucs/qucs-filter-v2/qf_main.cpp
@@ -41,13 +41,21 @@ int main (int argc, char * argv []) {
 
   // is application relocated?
   char * var = getenv ("QUCSDIR");
+  QDir QucsDir;
   if (var != NULL) {
-    QDir QucsDir = QDir (var);
+    QucsDir = QDir (var);
     QString QucsDirStr = QucsDir.canonicalPath ();
     QucsSettings.LangDir =
       QDir::convertSeparators (QucsDirStr + "/share/qucs/lang/");
   } else {
-    QucsSettings.LangDir = LANGUAGEDIR;
+    QString QucsApplicationPath = QCoreApplication::applicationDirPath();
+#ifdef __APPLE__
+    QucsDir = QDir(QucsApplicationPath.section("/bin",0,0));
+#else
+    QucsDir = QDir(QucsApplicationPath);
+    QucsDir.cdUp();
+#endif
+    QucsSettings.LangDir = QucsDir.canonicalPath() + "/share/qucs/lang/";
   }
 
   loadSettings();
diff --git a/qucs/qucs-filter/CMakeLists.txt b/qucs/qucs-filter/CMakeLists.txt
index d8fe16cacf..c725fcc57e 100644
--- a/qucs/qucs-filter/CMakeLists.txt
+++ b/qucs/qucs-filter/CMakeLists.txt
@@ -17,9 +17,6 @@ SET(CMAKE_BUILD_TYPE Debug)
 
 ADD_DEFINITIONS( -DHAVE_CONFIG_H )
 
-# define variables
-SET(LANGUAGEDIR "${CMAKE_INSTALL_PREFIX}/share/qucs/lang/")
-
 # configure the header config.h
 CONFIGURE_FILE (
     "${PROJECT_SOURCE_DIR}/../config.h.cmake"
diff --git a/qucs/qucs-filter/main.cpp b/qucs/qucs-filter/main.cpp
index a8748b960a..69847e35e2 100644
--- a/qucs/qucs-filter/main.cpp
+++ b/qucs/qucs-filter/main.cpp
@@ -84,13 +84,21 @@ int main(int argc, char *argv[])
 
   // is application relocated?
   char * var = getenv ("QUCSDIR");
+  QDir QucsDir;
   if (var != NULL) {
-    QDir QucsDir = QDir (var);
+    QucsDir = QDir (var);
     QString QucsDirStr = QucsDir.canonicalPath ();
     QucsSettings.LangDir =
       QDir::convertSeparators (QucsDirStr + "/share/qucs/lang/");
   } else {
-    QucsSettings.LangDir = LANGUAGEDIR;
+    QString QucsApplicationPath = QCoreApplication::applicationDirPath();
+#ifdef __APPLE__
+    QucsDir = QDir(QucsApplicationPath.section("/bin",0,0));
+#else
+    QucsDir = QDir(QucsApplicationPath);
+    QucsDir.cdUp();
+#endif
+    QucsSettings.LangDir = QucsDir.canonicalPath() + "/share/qucs/lang/";
   }
 
   loadSettings();
diff --git a/qucs/qucs-help/CMakeLists.txt b/qucs/qucs-help/CMakeLists.txt
index cf6fcca7c0..92fc529294 100644
--- a/qucs/qucs-help/CMakeLists.txt
+++ b/qucs/qucs-help/CMakeLists.txt
@@ -17,9 +17,6 @@ SET(CMAKE_BUILD_TYPE Debug)
 
 ADD_DEFINITIONS( -DHAVE_CONFIG_H )
 
-# define variables
-SET(LANGUAGEDIR "${CMAKE_INSTALL_PREFIX}/share/qucs/lang/")
-
 # configure the header config.h
 CONFIGURE_FILE (
     "${PROJECT_SOURCE_DIR}/../config.h.cmake"
diff --git a/qucs/qucs-lib/CMakeLists.txt b/qucs/qucs-lib/CMakeLists.txt
index 583b32b4c7..98101feb9b 100644
--- a/qucs/qucs-lib/CMakeLists.txt
+++ b/qucs/qucs-lib/CMakeLists.txt
@@ -17,10 +17,6 @@ SET(CMAKE_BUILD_TYPE Debug)
 
 ADD_DEFINITIONS( -DHAVE_CONFIG_H )
 
-# define variables
-SET(LANGUAGEDIR "${CMAKE_INSTALL_PREFIX}/share/qucs/lang/")
-SET(LIBRARYDIR "${CMAKE_INSTALL_PREFIX}/share/qucs/library/")
-
 # configure the header config.h
 CONFIGURE_FILE (
     "${PROJECT_SOURCE_DIR}/../config.h.cmake"
diff --git a/qucs/qucs-lib/main.cpp b/qucs/qucs-lib/main.cpp
index c78181db34..499ca379b9 100644
--- a/qucs/qucs-lib/main.cpp
+++ b/qucs/qucs-lib/main.cpp
@@ -100,8 +100,15 @@ int main(int argc, char *argv[])
     QucsSettings.LangDir =     QucsDir.canonicalPath() + "/share/qucs/lang/";
     QucsSettings.LibDir =      QucsDir.canonicalPath() + "/share/qucs/library/";
   } else {
-    QucsSettings.LangDir = LANGUAGEDIR;
-    QucsSettings.LibDir = LIBRARYDIR;
+    QString QucsApplicationPath = QCoreApplication::applicationDirPath();
+#ifdef __APPLE__
+    QucsDir = QDir(QucsApplicationPath.section("/bin",0,0));
+#else
+    QucsDir = QDir(QucsApplicationPath);
+    QucsDir.cdUp();
+#endif
+    QucsSettings.LangDir = QucsDir.canonicalPath() + "/share/qucs/lang/";
+    QucsSettings.LibDir  = QucsDir.canonicalPath() + "/share/qucs/library/";
   }
 
   loadSettings();
diff --git a/qucs/qucs-rescodes/CMakeLists.txt b/qucs/qucs-rescodes/CMakeLists.txt
index c508590ef6..e62d21f3f4 100644
--- a/qucs/qucs-rescodes/CMakeLists.txt
+++ b/qucs/qucs-rescodes/CMakeLists.txt
@@ -17,9 +17,6 @@ SET(CMAKE_BUILD_TYPE Debug)
 
 ADD_DEFINITIONS( -DHAVE_CONFIG_H )
 
-# define variables
-SET(LANGUAGEDIR "${CMAKE_INSTALL_PREFIX}/share/qucs/lang/")
-
 # configure the header config.h
 CONFIGURE_FILE (
     "${PROJECT_SOURCE_DIR}/../config.h.cmake"
diff --git a/qucs/qucs-rescodes/main.cpp b/qucs/qucs-rescodes/main.cpp
index 87a36327bd..a5fd6b29c6 100644
--- a/qucs/qucs-rescodes/main.cpp
+++ b/qucs/qucs-rescodes/main.cpp
@@ -235,7 +235,14 @@ int main( int argc, char **argv )
     QucsDir = QDir(QString(var));
     QucsSettings.LangDir =     QucsDir.canonicalPath() + "/share/qucs/lang/";
   } else {
-    QucsSettings.LangDir = LANGUAGEDIR;
+    QString QucsApplicationPath = QCoreApplication::applicationDirPath();
+#ifdef __APPLE__
+    QucsDir = QDir(QucsApplicationPath.section("/bin",0,0));
+#else
+    QucsDir = QDir(QucsApplicationPath);
+    QucsDir.cdUp();
+#endif
+    QucsSettings.LangDir = QucsDir.canonicalPath() + "/share/qucs/lang/";
   }
 
   loadSettings();
diff --git a/qucs/qucs-transcalc/CMakeLists.txt b/qucs/qucs-transcalc/CMakeLists.txt
index c306077163..b3410c942a 100644
--- a/qucs/qucs-transcalc/CMakeLists.txt
+++ b/qucs/qucs-transcalc/CMakeLists.txt
@@ -17,9 +17,6 @@ SET(CMAKE_BUILD_TYPE Debug)
 
 ADD_DEFINITIONS( -DHAVE_CONFIG_H )
 
-# define variables
-SET(LANGUAGEDIR "${CMAKE_INSTALL_PREFIX}/share/qucs/lang/")
-
 # configure the header config.h
 CONFIGURE_FILE (
     "${PROJECT_SOURCE_DIR}/../config.h.cmake"
diff --git a/qucs/qucs-transcalc/main.cpp b/qucs/qucs-transcalc/main.cpp
index 52479579cb..cbe2138939 100644
--- a/qucs/qucs-transcalc/main.cpp
+++ b/qucs/qucs-transcalc/main.cpp
@@ -105,13 +105,21 @@ int main(int argc, char *argv[])
 
   // is application relocated?
   char * var = getenv ("QUCSDIR");
+  QDir QucsDir;
   if (var != NULL) {
-    QDir QucsDir = QDir (var);
+    QucsDir = QDir (var);
     QString QucsDirStr = QucsDir.canonicalPath ();
     QucsSettings.LangDir =
       QDir::convertSeparators (QucsDirStr + "/share/qucs/lang/");
   } else {
-    QucsSettings.LangDir = LANGUAGEDIR;
+    QString QucsApplicationPath = QCoreApplication::applicationDirPath();
+#ifdef __APPLE__
+    QucsDir = QDir(QucsApplicationPath.section("/bin",0,0));
+#else
+    QucsDir = QDir(QucsApplicationPath);
+    QucsDir.cdUp();
+#endif
+    QucsSettings.LangDir = QucsDir.canonicalPath() + "/share/qucs/lang/";
   }
   QucsSettings.QucsWorkDir.setPath (QDir::homePath()+QDir::convertSeparators ("/.qucs"));
   loadSettings();
diff --git a/qucs/qucs/CMakeLists.txt b/qucs/qucs/CMakeLists.txt
index 2bb0e859c3..58cb5fec7e 100755
--- a/qucs/qucs/CMakeLists.txt
+++ b/qucs/qucs/CMakeLists.txt
@@ -54,10 +54,6 @@ endif()
 #
 ADD_DEFINITIONS( -DHAVE_CONFIG_H )
 
-# define variables
-SET(LANGUAGEDIR "${CMAKE_INSTALL_PREFIX}/share/qucs/lang/")
-
-
 FIND_PACKAGE( Qt4 4.6.3 REQUIRED QtCore QtGui Qt3Support QtSvg QtXml QtScript)
 INCLUDE( ${QT_USE_FILE} )
 
diff --git a/qucs/translations/CMakeLists.txt b/qucs/translations/CMakeLists.txt
index 6be103eb56..3c5396e52a 100644
--- a/qucs/translations/CMakeLists.txt
+++ b/qucs/translations/CMakeLists.txt
@@ -31,13 +31,9 @@ ENDIF (UPDATE_TRANSLATIONS)
 #
 #FILE(GLOB QtTRANSLATIONS qtgeneric_*.ts)
 
-#
-# location for translations
-SET(LANGUAGEDIR "${CMAKE_INSTALL_PREFIX}/share/qucs/lang/")
-
 #
 # install tranlations
-INSTALL( FILES ${QM_FILES} DESTINATION ${LANGUAGEDIR})
+INSTALL( FILES ${QM_FILES} DESTINATION share/qucs/lang)
 
 # prevent the generated files from being deleted during make clean
 #set_directory_properties(PROPERTIES CLEAN_NO_CUSTOM true)