diff -uNpr linnwt4_v1_10_13.orig/konstdef.h linnwt4_v1_10_13/konstdef.h
--- linnwt4_v1_10_13.orig/konstdef.h	Tue Feb  2 23:40:16 2021
+++ linnwt4_v1_10_13/konstdef.h	Sat Jun 19 17:50:03 2021
@@ -31,14 +31,14 @@ const int maxmesspunkte = 2000+1; // Messpunkte von 0 
 const int maxrxbuffer = 200000; // RS232 Buffer maximale Laenge
 const int spurmax = 50;
 
-const char schnittstelle1[] ="/dev/ttyS0";
-const char schnittstelle2[] ="/dev/ttyS1";
-const char schnittstelle3[] ="/dev/ttyS2";
-const char schnittstelle4[] ="/dev/ttyS3";
-const char schnittstelle5[] ="/dev/ttyUSB0";
-const char schnittstelle6[] ="/dev/ttyUSB1";
-const char schnittstelle7[] ="/dev/ttyUSB2";
-const char schnittstelle8[] ="/dev/ttyUSB3";
+const char schnittstelle1[] ="/dev/tty00";
+const char schnittstelle2[] ="/dev/tty01";
+const char schnittstelle3[] ="/dev/tty02";
+const char schnittstelle4[] ="/dev/tty03";
+const char schnittstelle5[] ="/dev/ttyU0";
+const char schnittstelle6[] ="/dev/ttyU1";
+const char schnittstelle7[] ="/dev/ttyU2";
+const char schnittstelle8[] ="/dev/ttyU3";
 
 enum emktyp {mks21, mks11, mks21var, mks11var};
 enum evariante {vnwt4_1, vnwt4_2, vnwt_ltdz, vnwt6, vnwt_nn};
diff -uNpr linnwt4_v1_10_13.orig/main.cpp linnwt4_v1_10_13/main.cpp
--- linnwt4_v1_10_13.orig/main.cpp	Tue Feb  2 23:40:16 2021
+++ linnwt4_v1_10_13/main.cpp	Sat Jun 19 17:51:05 2021
@@ -38,7 +38,7 @@ int main(int argc, char *argv[])
 #ifdef Q_OS_WIN
     if(nwt4translator.load(fname,"transl/"))qDebug("Translator OK");
 #else
-    if(nwt4translator.load(fname,"/usr/share/nwt4transl/"))qDebug("Translator OK");
+    if(nwt4translator.load(fname,"/usr/local/share/nwt4transl/"))qDebug("Translator OK");
 #endif
     a.installTranslator(&nwt4translator);
   }
@@ -55,8 +55,8 @@ int main(int argc, char *argv[])
   a.setWindowIcon(QIcon(":images/appicon.png"));
   w.setWindowIcon(QIcon(":images/appicon.png"));
 #else
-  a.setWindowIcon(QIcon("/usr/share/pixmaps/NWT4x.png"));
-  w.setWindowIcon(QIcon("/usr/share/pixmaps/NWT4x.png"));
+  a.setWindowIcon(QIcon("/usr/local/share/pixmaps/NWT4x.png"));
+  w.setWindowIcon(QIcon("/usr/local/share/pixmaps/NWT4x.png"));
 #endif
   if(bl){
     a.installTranslator(&nwt4translator);
diff -uNpr linnwt4_v1_10_13.orig/nwt4.pro linnwt4_v1_10_13/nwt4.pro
--- linnwt4_v1_10_13.orig/nwt4.pro	Tue Feb  2 23:40:16 2021
+++ linnwt4_v1_10_13/nwt4.pro	Sat Jun 19 17:51:25 2021
@@ -52,9 +52,9 @@ QMAKE_EXTRA_TARGETS += transl
 
 !win32 {
 target.path = /usr/local/bin/
-icon.path = /usr/share/pixmaps/
+icon.path = /usr/local/share/pixmaps/
 icon.files = images/NWT4x.png
-transl.path = /usr/share/nwt4transl/
+transl.path = /usr/local/share/nwt4transl/
 transl.files = nwt*.qm
 
 INSTALLS += target