diff --git a/configure.ac b/configure.ac
index c73f374e..941fb88e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -177,9 +177,19 @@ if test "${FFTW3_FOUND}" != "1"; then
   FFTW3_LIBS="-L${FFTW3_PREFIX}/lib -lfftw3 -lm"
   FFTW3_CFLAGS="-I${FFTW3_PREFIX}/include"
 fi
+# Check for fftw3_threads-library. If available musrfit is also linked against it (used in libTFitPofB).
+SAVED_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS $FFTW3_CFLAGS"
+SAVED_LIBSS="$LIBS"
+LIBS="$LIBS $FFTW3_LIBS"
+AC_SEARCH_LIBS([fftw_init_threads], [fftw3_threads], [FFTW3_LIBS="$FFTW3_LIBS -lfftw3_threads -lpthread"
+                                                      AC_DEFINE([HAVE_LIBFFTW3_THREADS], [1], [Define to 1 if fftw3_threads are available])], [], [-lpthread])
+CFLAGS="$SAVED_CFLAGS"
+LIBS="$SAVED_LIBS"
 AC_SUBST(FFTW3_LIBS)
 AC_SUBST(FFTW3_CFLAGS)
 
+
 dnl -----------------------------------------------
 dnl Ask user for path to gsl
 dnl -----------------------------------------------
@@ -278,6 +288,17 @@ ROOT_PATH([5.22/00], [], AC_MSG_ERROR([Either ROOT is not installed correctly or
 
 ROOT_LIBS="-L${ROOTLIBDIR} ${ROOTGLIBS} ${ROOTAUXLIBS} -lMinuit2 -lMathMore -lXMLParser"
 ROOT_CFLAGS="-I${ROOTINCDIR} ${ROOTCFLAGS} ${ROOTAUXCFLAGS}"
+
+## Check for Minuit2-library - not working at the moment, needs some more thoughts
+#SAVED_CXXFLAGS="$CXXFLAGS"
+#CXXFLAGS="$CXXFLAGS -I${ROOTINCDIR}/../include/Minuit2 $ROOT_CFLAGS"
+#SAVED_LIBSS="$LIBS"
+#LIBS="$LIBS $ROOT_LIBS"
+#AC_SEARCH_LIBS([MnMinimize], [Minuit2], [ROOT_LIBS="$ROOT_LIBS -lMinuit2 -lMathMore"],
+#               [AC_MSG_ERROR([Minuit2 library not found... Please check!])], [-lMathMore])
+#CXXFLAGS="$SAVED_CXXFLAGS"
+#LIBS="$SAVED_LIBS"
+
 AC_SUBST(ROOT_LIBS)
 AC_SUBST(ROOT_CFLAGS)
 
@@ -332,36 +353,6 @@ AC_ARG_ENABLE([BMWlibs], [AC_HELP_STRING([--enable-BMWlibs],[build optional BMW
     AC_SUBST(CUBA_LIBS)
     AC_SUBST(CUBA_CFLAGS)
 
-    # Since it is not clear to me, how to use the AC_SEARCH_LIBS macro correctly, I introduce a primitive file check here...
-    FFTW3_THREADS_LIBS=$(echo ${FFTW3_LIBS} | grep "lfftw3_threads")
-    if test "$FFTW3_THREADS_LIBS" == ""; then
-      if [test -r ${FFTW3_PREFIX}/lib/libfftw3_threads.a || test -r ${FFTW3_PREFIX}/lib/libfftw3_threads.so || \
-          test -r ${FFTW3_PREFIX}/lib/libfftw3_threads.dll.a || test -r ${FFTW3_PREFIX}/lib/libfftw3_threads.dll || \
-          test -r ${FFTW3_PREFIX}/lib/libfftw3_threads.dylib]; then
-        AC_MSG_RESULT([FFTW3 threads library found... OK])
-      elif [test -r /usr/local/lib/libfftw3_threads.a || test -r /usr/local/lib/libfftw3_threads.so || \
-          test -r /usr/local/lib/libfftw3_threads.dll.a || test -r /usr/local/lib/libfftw3_threads.dll || \
-          test -r /usr/local/lib/libfftw3_threads.dylib]; then
-        AC_MSG_RESULT([FFTW3 threads library found... OK])
-      elif [test -r /usr/lib/libfftw3_threads.a || test -r /usr/lib/libfftw3_threads.so || \
-          test -r /usr/lib/libfftw3_threads.dll.a || test -r /usr/lib/libfftw3_threads.dll || \
-          test -r /usr/lib/libfftw3_threads.dylib]; then
-        AC_MSG_RESULT([FFTW3 threads library found... OK])
-      elif [test -r /sw/lib/libfftw3_threads.a || test -r /sw/lib/libfftw3_threads.so || \
-          test -r /sw/lib/libfftw3_threads.dll.a || test -r /sw/lib/libfftw3_threads.dll || \
-          test -r /sw/lib/libfftw3_threads.dylib]; then
-        AC_MSG_RESULT([FFTW3 threads library found... OK])
-      elif [test -r /opt/local/lib/libfftw3_threads.a || test -r /opt/local/lib/libfftw3_threads.so || \
-          test -r /opt/local/lib/libfftw3_threads.dll.a || test -r /opt/local/lib/libfftw3_threads.dll || \
-          test -r /opt/local/lib/libfftw3_threads.dylib]; then
-        AC_MSG_RESULT([FFTW3 threads library found... OK])
-      else
-        AC_MSG_WARN([FFTW3 threads library not found. Please check! The BMWlibs will not run without it at the moment!])
-      fi
-      FFTW3_THREADS_LIBS="${FFTW3_LIBS} -lfftw3_threads -lpthread"
-    fi
-    AC_SUBST(FFTW3_THREADS_LIBS)
-
     BUILD_BMW_LIBS=1
     ],
     [BUILD_BMW_LIBS=0]
diff --git a/src/classes/PRunDataHandler.cpp b/src/classes/PRunDataHandler.cpp
index 61a4d427..dd9176f9 100644
--- a/src/classes/PRunDataHandler.cpp
+++ b/src/classes/PRunDataHandler.cpp
@@ -1283,18 +1283,18 @@ Bool_t PRunDataHandler::ReadMudFile()
   MUD_closeRead(fh);
 
 /*
-cout << endl << "fRunName        : " << runData.fRunName.Data();
-cout << endl << "fRunTitle       : " << runData.fRunTitle.Data();
-cout << endl << "fSetup          : " << runData.fSetup.Data();
-cout << endl << "fField          : " << runData.fField;
-cout << endl << "fTemp           : " << runData.fTemp[0].first;
+cout << endl << "fRunName        : " << runData.GetRunName()->Data();
+cout << endl << "fRunTitle       : " << runData.GetRunTitle()->Data();
+cout << endl << "fSetup          : " << runData.GetSetup()->Data();
+cout << endl << "fField          : " << runData.GetField();
+cout << endl << "fTemp           : " << runData.GetTemperature(1);
 cout << endl << "noOfHistos      : " << noOfHistos;
-cout << endl << "fTimeResolution : " << runData.fTimeResolution;
+cout << endl << "fTimeResolution : " << runData.GetTimeResolution();
 for (Int_t i=0; i<noOfHistos; i++) {
   cout << endl << "------";
-  cout << endl << i << " : t0        = " << runData.fT0s[i];
-  cout << endl << i << " : bkg bins  = " << runData.fBkgBin[i].first << "..." << runData.fBkgBin[i].second;
-  cout << endl << i << " : good bins = " << runData.fGoodDataBin[i].first << "..." << runData.fGoodDataBin[i].second;
+  cout << endl << i << " : t0        = " << runData.GetT0(i);
+  cout << endl << i << " : bkg bins  = " << runData.GetBkgBin(i).first << "..." << runData.GetBkgBin(i).second;
+  cout << endl << i << " : good bins = " << runData.GetGoodDataBin(i).first << "..." << runData.GetGoodDataBin(i).second;
 }
 cout << endl;
 */
diff --git a/src/external/TFitPofB-lib/classes/Makefile.am b/src/external/TFitPofB-lib/classes/Makefile.am
index c98cade4..66d902bb 100644
--- a/src/external/TFitPofB-lib/classes/Makefile.am
+++ b/src/external/TFitPofB-lib/classes/Makefile.am
@@ -56,7 +56,7 @@ CLEANFILES = *Dict.cpp *Dict.h *~ core
 lib_LTLIBRARIES = libTFitPofB.la
 
 libTFitPofB_la_SOURCES = $(h_sources) $(cpp_sources) $(dict_h_sources) $(dict_cpp_sources)
-libTFitPofB_la_LIBADD = $(LEM_LIBS) $(PMUSR_LIBS) $(FFTW3_THREADS_LIBS) $(ROOT_LIBS)
+libTFitPofB_la_LIBADD = $(LEM_LIBS) $(PMUSR_LIBS) $(FFTW3_LIBS) $(ROOT_LIBS)
 libTFitPofB_la_LDFLAGS = -version-info $(PLUGIN_LIBRARY_VERSION) -release $(PLUGIN_RELEASE) $(AM_LDFLAGS)
 
 ## For the moment do not build pkgconfig files for musrfit plug-ins...
diff --git a/src/external/TFitPofB-lib/classes/TBulkTriVortexFieldCalc.cpp b/src/external/TFitPofB-lib/classes/TBulkTriVortexFieldCalc.cpp
index f9be8f37..1bf8ece4 100644
--- a/src/external/TFitPofB-lib/classes/TBulkTriVortexFieldCalc.cpp
+++ b/src/external/TFitPofB-lib/classes/TBulkTriVortexFieldCalc.cpp
@@ -128,9 +128,11 @@ TBulkTriVortexLondonFieldCalc::TBulkTriVortexLondonFieldCalc(const string& wisdo
   fParam.resize(3);
   fGridExists = false;
 
+#ifdef HAVE_LIBFFTW3_THREADS
   int init_threads(fftw_init_threads());
   if (init_threads)
     fftw_plan_with_nthreads(2);
+#endif /* HAVE_LIBFFTW3_THREADS */
 
   fFFTin = new fftw_complex[(fSteps/2 + 1) * fSteps];
   fFFTout = new double[fSteps*fSteps];
@@ -295,9 +297,11 @@ TBulkTriVortexMLFieldCalc::TBulkTriVortexMLFieldCalc(const string& wisdom, const
   fParam.resize(3);
   fGridExists = false;
 
+#ifdef HAVE_LIBFFTW3_THREADS
   int init_threads(fftw_init_threads());
   if (init_threads)
     fftw_plan_with_nthreads(2);
+#endif /* HAVE_LIBFFTW3_THREADS */
 
   fFFTin = new fftw_complex[(fSteps/2 + 1) * fSteps];
   fFFTout = new double[fSteps*fSteps];
@@ -465,9 +469,11 @@ TBulkTriVortexAGLFieldCalc::TBulkTriVortexAGLFieldCalc(const string& wisdom, con
   fParam.resize(3);
   fGridExists = false;
 
+#ifdef HAVE_LIBFFTW3_THREADS
   int init_threads(fftw_init_threads());
   if (init_threads)
     fftw_plan_with_nthreads(2);
+#endif /* HAVE_LIBFFTW3_THREADS */
 
   fFFTin = new fftw_complex[(fSteps/2 + 1) * fSteps];
   fFFTout = new double[fSteps*fSteps];
@@ -655,9 +661,11 @@ TBulkTriVortexNGLFieldCalc::TBulkTriVortexNGLFieldCalc(const string& wisdom, con
   fParam.resize(3);
   fGridExists = false;
 
+#ifdef HAVE_LIBFFTW3_THREADS
   int init_threads(fftw_init_threads());
   if (init_threads)
     fftw_plan_with_nthreads(2);
+#endif /* HAVE_LIBFFTW3_THREADS */
 
   const unsigned int stepsSq(fSteps*fSteps);
 
diff --git a/src/external/TFitPofB-lib/classes/TPofTCalc.cpp b/src/external/TFitPofB-lib/classes/TPofTCalc.cpp
index 35e7182d..da53c8da 100644
--- a/src/external/TFitPofB-lib/classes/TPofTCalc.cpp
+++ b/src/external/TFitPofB-lib/classes/TPofTCalc.cpp
@@ -65,11 +65,13 @@
 
 TPofTCalc::TPofTCalc (const TPofBCalc *PofB, const string &wisdom, const vector<double> &par) : fWisdom(wisdom) {
 
+#ifdef HAVE_LIBFFTW3_THREADS
   int init_threads(fftw_init_threads());
   if (!init_threads)
     cout << "TPofTCalc::TPofTCalc: Couldn't initialize multiple FFTW-threads ..." << endl;
   else
     fftw_plan_with_nthreads(2);
+#endif /* HAVE_LIBFFTW3_THREADS */
 
   fNFFT = static_cast<int>(1.0/(gBar*par[1]*par[2]));
   if (fNFFT % 2) {
diff --git a/src/external/libLFRelaxation/Makefile.am b/src/external/libLFRelaxation/Makefile.am
index b47d4505..4c199220 100644
--- a/src/external/libLFRelaxation/Makefile.am
+++ b/src/external/libLFRelaxation/Makefile.am
@@ -33,7 +33,7 @@ CLEANFILES = *Dict.cpp *Dict.h *~ core
 lib_LTLIBRARIES = libLFRelaxation.la
 
 libLFRelaxation_la_SOURCES = $(h_sources) $(cpp_sources) $(dict_h_sources) $(dict_cpp_sources)
-libLFRelaxation_la_LIBADD = $(PMUSR_LIBS) $(FFTW3_THREADS_LIBS) $(GSL_LIBS) $(ROOT_LIBS) $(CUBA_LIBS)
+libLFRelaxation_la_LIBADD = $(PMUSR_LIBS) $(FFTW3_LIBS) $(GSL_LIBS) $(ROOT_LIBS) $(CUBA_LIBS)
 libLFRelaxation_la_LDFLAGS = -version-info $(PLUGIN_LIBRARY_VERSION) -release $(PLUGIN_RELEASE) $(AM_LDFLAGS)
 
 ## For the moment do not build pkgconfig files for musrfit plug-ins...