diff --git a/CMakeLists.txt b/CMakeLists.txt
index d0a06a3a..646d52eb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -248,11 +248,6 @@ endif(INSTALL_PROFILES)
 #######################################################################
 if(INSTALL_DEPENDENCIES)
     include (InstallRequiredSystemLibraries)
-#    find_library(LIBGOMP NAMES gomp.1)
-#    find_library(LIBSTDCXX NAMES stdc++.6)
-#    find_library(LIBGCCS NAMES gcc_s.1)
-#     install( FILES "${Boost_LIBRARIES}" ${LIBGOMP} ${LIBSTDCXX} ${LIBGCCS} DESTINATION ${ng_install_dir_lib} COMPONENT netgen )
-#     install( FILES "${Boost_LIBRARIES}" DESTINATION ${ng_install_dir_lib} COMPONENT netgen )
     get_filename_component(MY_LIB_DIR ${TK_LIBRARY} DIRECTORY)
     if(APPLE)
         if(TIX_LIBRARY)
diff --git a/cmake_modules/SuperBuild.cmake b/cmake_modules/SuperBuild.cmake
index 45f18a1d..c3d2ffce 100644
--- a/cmake_modules/SuperBuild.cmake
+++ b/cmake_modules/SuperBuild.cmake
@@ -51,6 +51,22 @@ if(APPLE)
 else(APPLE)
   set(CMAKE_INSTALL_PREFIX "${INSTALL_DIR}" CACHE INTERNAL "Prefix prepended to install directories" FORCE)
 endif(APPLE)
+if(UNIX)
+  # check for write permissions in install directory
+  execute_process(COMMAND test -w ${INSTALL_DIR} RESULT_VARIABLE res)
+  IF(res)
+    message("No write permissions on install directory ${INSTALL_DIR}")
+    message("The setup routine will now set write permissions by executing following commands, please provide your password when asked for:")
+    message("sudo mkdir -p ${INSTALL_DIR}")
+    message("sudo chown -r $ENV{USER}:$ENV{USER} ${INSTALL_DIR}")
+    execute_process(COMMAND sudo mkdir -p ${INSTALL_DIR})
+    execute_process(COMMAND sudo chown -R $ENV{USER}:$ENV{USER} ${INSTALL_DIR})
+  endif()
+  execute_process(COMMAND test -w ${INSTALL_DIR} RESULT_VARIABLE res)
+  if(res)
+    message(WARNING "still no write access at install directory, please set permissions manually")
+  endif()
+endif(UNIX)
 
 if(NOT WIN32)
     find_package(ZLIB REQUIRED)