diff --git a/init.sh b/init.sh
index a93b7bc3f..8a3ac285f 100755
--- a/init.sh
+++ b/init.sh
@@ -1,21 +1,11 @@
 #!/bin/bash
 
-if ! type "wget" > /dev/null; then
-    echo >&2 "Please install wget or set it in your path. Aborting."; exit 1;
-fi
-
-if ! type "git" > /dev/null; then
-    echo >&2 "Please install git or set it in your path. Aborting."; exit 1;
-fi
-
-if ! type "cmake" > /dev/null; then
-    echo >&2 "Please install cmake or set it in your path. Aborting."; exit 1;
-fi
-
-cd cmake
-./setup.sh
-cd ..
+# install all dependencies on debian based operating systems
+for pkg in wget git cmake uuid-dev clang-3.8; do
+    dpkg -s $pkg 2>/dev/null >/dev/null || sudo apt-get -y install $pkg
+done
 
+# setup libs (download)
 cd libs
 ./setup.sh
 cd ..
diff --git a/tests/concurrent/futex.cpp b/tests/concurrent/futex.cpp
index bc26fc7c6..7a7070de1 100644
--- a/tests/concurrent/futex.cpp
+++ b/tests/concurrent/futex.cpp
@@ -9,12 +9,16 @@
 Futex futex;
 int x = 0;
 
-void test_lock(int id) {
+/**
+ * @param thread id
+ */
+void test_lock(int) {
   std::random_device rd;
   std::mt19937 gen(rd());
   std::uniform_int_distribution<> dis(0, 1000);
 
-  for (int i = 0; i < 5000000; ++i) {
+  // TODO: create long running test
+  for (int i = 0; i < 5; ++i) {
     {
       std::unique_lock<Futex> guard(futex);
       x++;