diff --git a/cmake/CPackOptions.cmake.in b/cmake/CPackOptions.cmake.in
index 7654ae58..1d24ed67 100644
--- a/cmake/CPackOptions.cmake.in
+++ b/cmake/CPackOptions.cmake.in
@@ -24,13 +24,16 @@ set (CPACK_SET_DESTDIR "OFF")
 set (CPACK_PACKAGE_RELOCATABLE "true")
 
 if (${CPACK_GENERATOR} STREQUAL "RPM")
-  set(CPACK_INSTALL_PREFIX "@CMAKE_INSTALL_PREFIX@")
-  set(CPACK_PACKAGING_INSTALL_PREFIX "@CMAKE_INSTALL_PREFIX@")
+  set (CPACK_RPM_PACKAGE_REQUIRES "root >= 6.14.08") 
+  set (CPACK_INSTALL_PREFIX "@CMAKE_INSTALL_PREFIX@")
+  set (CPACK_PACKAGING_INSTALL_PREFIX "@CMAKE_INSTALL_PREFIX@")
   set (CPACK_RPM_FILE_NAME "RPM-DEFAULT")
   set (CPACK_RPM_PACKAGE_RELEASE "1")
   set (CPACK_RPM_PACKAGE_LICENSE "GPLv2")
   set (CPACK_RPM_PACKAGE_VENDOR "Paul Scherrer Institute - LMU - LEM")
   set (CPACK_RPM_CHANGELOG_FILE "@PROJECT_SOURCE_DIR@/cmake/ChangeLogRPM")
+  set (CPACK_RPM_POST_INSTALL_SCRIPT_FILE "@PROJECT_SOURCE_DIR@/cmake/post_install.sh")
+  set (CPACK_RPM_POST_UNINSTALL_SCRIPT_FILE "@PROJECT_SOURCE_DIR@/cmake/post_uninstall.sh")
 endif ()
 
 if (${CPACK_GENERATOR} STREQUAL "DEB")
diff --git a/cmake/post_install.sh b/cmake/post_install.sh
new file mode 100644
index 00000000..3763661a
--- /dev/null
+++ b/cmake/post_install.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+echo ">> musrfit post install script started ..."
+
+# test if nemu-x86_64.conf does not exist
+if [ ! -f "/etc/ld.so.conf.d/nemu-x86_64.conf" ]
+then
+  echo "/usr/local/lib" >> /etc/ld.so.conf.d/nemu-x86_64.conf 
+  echo "/usr/local/lib64" >> /etc/ld.so.conf.d/nemu-x86_64.conf   
+fi
+/sbin/ldconfig
+
+echo ">> musrfit post install script done."
+
diff --git a/cmake/post_uninstall.sh b/cmake/post_uninstall.sh
new file mode 100644
index 00000000..51390702
--- /dev/null
+++ b/cmake/post_uninstall.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+echo ">> musrfit post uninstall script started ..."
+
+# test if nemu-x86_64.conf does not exist
+if [ -f "/etc/ld.so.conf.d/nemu-x86_64.conf" ]
+then
+  rm -f /etc/ld.so.conf.d/nemu-x86_64.conf  
+fi
+/sbin/ldconfig
+
+echo ">> musrfit post uninstall script done."
+