diff --git a/root/core/CMakeLists.txt b/root/core/CMakeLists.txt
index f4e6c570f6..4e080c5155 100644
--- a/root/core/CMakeLists.txt
+++ b/root/core/CMakeLists.txt
@@ -34,3 +34,7 @@ ROOTTEST_ADD_TEST(execStatusBitsCheck
                   OUTCNV ../html/MakeIndex_convert.sh
                   OUTREF execStatusBitsCheck.ref
                   )
+
+ROOTTEST_ADD_TEST(CoreDynPathSetupUNIX
+                  COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/test_dynpath_setup.sh ${ROOT_root_CMD}
+                 )
diff --git a/root/core/test_dynpath_setup.sh b/root/core/test_dynpath_setup.sh
new file mode 100755
index 0000000000..a0c2366db4
--- /dev/null
+++ b/root/core/test_dynpath_setup.sh
@@ -0,0 +1,122 @@
+#! /bin/bash
+
+set -e
+
+mkdir -p rootlibpath_test
+cd rootlibpath_test
+
+root="$1"
+libdir="$("$root" -b -x -q -l -e 'cout << TROOT::GetLibDir();' | tail -1)"
+
+set_rootrc() {
+	if [ -n "$1" ]
+	then
+		echo "Unix.*.Root.DynamicPath $1" >.rootrc
+	else
+		echo "# Unix.*.Root.DynamicPath" >.rootrc
+	fi
+}
+
+get_dynpath() {
+	cur_dynpath="$("$root" -b -x -q -l -e 'cout << gSystem->GetDynamicPath();' | tail -1)"
+}
+
+check_begin() {
+	case "$cur_dynpath:" in
+		"$1":*)
+			;;
+		*)
+			echo "dynamic path: ${cur_dynpath}"
+			echo "dynamic path should start with: $1"
+			exit 1
+			;;
+	esac
+}
+check_mid() {
+	case ":$cur_dynpath:" in
+		*:"$1":*)
+			;;
+		*)
+			echo "dynamic path: ${cur_dynpath}"
+			echo "dynamic path should contain: $1"
+			exit 1
+			;;
+	esac
+}
+check_begin_and_mid() {
+	check_begin "$1"
+	check_mid "$2"
+}
+
+
+mkdir -p rootlibpath
+rootlibpath="$PWD/rootlibpath"
+mkdir -p rootrcpath
+rootrcpath="$PWD/rootrcpath"
+mkdir -p ldpath
+ldpath="$PWD/ldpath"
+
+
+export ROOT_LIBRARY_PATH="$rootlibpath"
+set_rootrc "$rootrcpath"
+get_dynpath
+check_begin_and_mid "$ROOT_LIBRARY_PATH" "$rootrcpath:$libdir"
+
+export ROOT_LIBRARY_PATH="$rootlibpath"
+set_rootrc "$libdir:$rootrcpath"
+get_dynpath
+check_begin_and_mid "$ROOT_LIBRARY_PATH" "$libdir:$rootrcpath"
+
+export ROOT_LIBRARY_PATH="$rootlibpath"
+set_rootrc ""
+get_dynpath
+check_begin_and_mid "$ROOT_LIBRARY_PATH" ".:$libdir"
+
+unset ROOT_LIBRARY_PATH
+set_rootrc ""
+get_dynpath
+check_mid ".:$libdir"
+
+
+# #########################
+# with LD_LIBRARY_PATH & Co
+
+if [ -n "$LD_LIBRARY_PATH" ]
+then
+	LD_LIBRARY_PATH="$ldpath:$LD_LIBRARY_PATH"
+else
+	export LD_LIBRARY_PATH="$ldpath"
+fi
+if [ -n "$DYLD_LIBRARY_PATH" ]
+then
+	DYLD_LIBRARY_PATH="$ldpath:$DYLD_LIBRARY_PATH"
+else
+	export DYLD_LIBRARY_PATH="$ldpath"
+fi
+if [ -n "$LIBPATH" ]
+then
+	LIBPATH="$ldpath:$LIBPATH"
+else
+	export LIBPATH="$ldpath"
+fi
+
+
+export ROOT_LIBRARY_PATH="$rootlibpath"
+set_rootrc "$rootrcpath"
+get_dynpath
+check_begin_and_mid "$ROOT_LIBRARY_PATH:$ldpath" "$rootrcpath:$libdir"
+
+export ROOT_LIBRARY_PATH="$rootlibpath"
+set_rootrc "$libdir:$rootrcpath"
+get_dynpath
+check_begin_and_mid "$ROOT_LIBRARY_PATH:$ldpath" "$libdir:$rootrcpath"
+
+export ROOT_LIBRARY_PATH="$rootlibpath"
+set_rootrc ""
+get_dynpath
+check_begin_and_mid "$ROOT_LIBRARY_PATH:$ldpath" ".:$libdir"
+
+unset ROOT_LIBRARY_PATH
+set_rootrc ""
+get_dynpath
+check_begin_and_mid "$ldpath" ".:$libdir"