diff --git a/.travis.yml b/.travis.yml
index b7fb89d..a1f76aa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,16 +1,25 @@
 language: shell
 sudo: required
 
+cache:
+  ccache: true
+  directories:
+    - $HOME/.ccache
+
 env:
   matrix:
     - CHECK=format
     - CHECK=docs
+    - CHECK=build TYPE=debug COMPILER=g++
+    - CHECK=build TYPE=release COMPILER=g++
+    - CHECK=build TYPE=debug COMPILER=clang++
+    - CHECK=build TYPE=release COMPILER=clang++
 
 install:
-  - sudo resources/travis/setup.sh $CHECK
+  - sudo -E resources/travis/setup.sh
 
 script:
-  - sudo resources/travis/build.sh $CHECK
+  - sudo -E resources/travis/build.sh
 
 notifications:
   email: false
diff --git a/resources/travis/build.sh b/resources/travis/build.sh
index e32154c..7ed37e9 100755
--- a/resources/travis/build.sh
+++ b/resources/travis/build.sh
@@ -3,29 +3,32 @@ set -e
 
 . "$(dirname "$0")"/common.sh
 
-for arg in "$@"
+for arg in "$CHECK"
 do
   case "$arg" in
     format) ENABLE_FORMAT=true;;
     docs)   ENABLE_DOCS=true;;
+    build)  ENABLE_BUILD=true;;
     *)      echo "Unknown command: $1" && exit 1
   esac
 done
 
 alpine_run prepare <<-EOF
-  mkdir -p /tmp/build/format
-  mkdir -p /tmp/build/docs
+  mkdir ~/format
+  mkdir ~/docs
+  mkdir ~/app
 EOF
 
 
 
 if [ "$ENABLE_FORMAT" = true ]; then
 alpine_run format <<-EOF
-  cd /tmp/build/format
+  set -e
+  cd ~/format
 
-  cmake -Dtools.only=ON ~
+  cmake -Dtools.only=ON ~/src
   make format
-  cd ~
+  cd ~/src
   git add .
   git --no-pager diff --staged
   git diff-index --quiet HEAD
@@ -35,10 +38,25 @@ fi
 
 if [ "$ENABLE_DOCS" = true ]; then
 alpine_run docs <<-EOF
-  cd /tmp/build/docs
+  set -e
+  cd ~/docs
 
-  cmake -Dtools.only=ON ~
+  cmake -Dtools.only=ON ~/src
   make sdk
   make notes
 EOF
 fi
+
+
+if [ "$ENABLE_BUILD" = true ]; then
+alpine_run build <<-EOF
+  set -e
+  cd ~/app
+
+  cmake -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER=$COMPILER -DCMAKE_BUILD_TYPE=$TYPE ~/src
+  cmake --build .
+  ctest --output-on-failure
+  src/AusweisApp2 -platform offscreen --help
+EOF
+fi
+
diff --git a/resources/travis/common.sh b/resources/travis/common.sh
index f929f64..b883e87 100644
--- a/resources/travis/common.sh
+++ b/resources/travis/common.sh
@@ -1,5 +1,8 @@
 readonly ALPINE_ROOT='/mnt/alpine'
 readonly ALPINE_USER='governikus'
+readonly ALPINE_HOME="${ALPINE_ROOT}/home/${ALPINE_USER}"
+readonly ALPINE_SRC="${ALPINE_HOME}/src"
+readonly ALPINE_CCACHE="${ALPINE_HOME}/.ccache"
 
 alpine_run() {
   local folding="${1:-chroot}"
diff --git a/resources/travis/setup.sh b/resources/travis/setup.sh
index 7f8c6e2..a34f10f 100755
--- a/resources/travis/setup.sh
+++ b/resources/travis/setup.sh
@@ -5,8 +5,8 @@ set -eu
 
 readonly CLONE_DIR="${CLONE_DIR:-$(pwd)}"
 
-MINIROOTFS_VERSION="3.8.0"
-MINIROOTFS_SHA="ae36d6ea2033131cfc649afa13d7271367c386e7a0dbd5b3d0671a2ede22a2f1"
+MINIROOTFS_VERSION="3.9.0"
+MINIROOTFS_SHA="f82efed1a80c9af86c38bed10f3541c5588453b97684d767a5a3b0f3fa0e3f09"
 
 MINIROOTFS="alpine-minirootfs-${MINIROOTFS_VERSION}-x86_64.tar.gz"
 MINIROOTFS_URI="http://dl-cdn.alpinelinux.org/alpine/v${MINIROOTFS_VERSION%.*}/releases/x86_64/$MINIROOTFS"
@@ -30,11 +30,12 @@ ln -sf /run/shm dev/shm
 
 
 PACKAGES="cmake make ninja git"
-for arg in "$@"
+for arg in "$CHECK"
 do
   case "$arg" in
     format) PACKAGES="$PACKAGES uncrustify";;
     docs)   PACKAGES="$PACKAGES py2-sphinx py2-setuptools";;
+    build)  PACKAGES="$PACKAGES clang g++ ccache binutils-gold eudev-dev pcsc-lite-dev http-parser-dev openssl-dev qt5-qtsvg-dev qt5-qtquickcontrols2-dev qt5-qtwebsockets-dev qt5-qtconnectivity-dev qt5-qtbase-dev qt5-qttools-dev";;
     *)      echo "Unknown command: $1" && exit 1
   esac
 done
@@ -46,7 +47,11 @@ alpine_run packages root <<-EOF
   apk add $PACKAGES
 EOF
 
-mount --bind "$CLONE_DIR" "${ALPINE_ROOT}/home/${ALPINE_USER}"
+mkdir ${ALPINE_SRC}
+mkdir ${ALPINE_CCACHE}
+mount --bind "$CLONE_DIR" "${ALPINE_SRC}"
+mount --bind "$HOME/.ccache" "${ALPINE_CCACHE}"
+chmod 777 "$ALPINE_CCACHE"
 
 alpine_run chown root <<-EOF
   chown -R $ALPINE_USER: /home/${ALPINE_USER}