Bigger matrix for travis ci. Including minimal configuration on linux and osx and x11 on linux

.travis.yml

@@ -5,12 +5,35 @@ os:
   - osx
 
 env:
-  - ARCH=x86
-  - ARCH=x86_64
-
-# No-one cares about OS X x86
+  - ARCH=x86_64 CONFIG=default
+  - ARCH=x86_64 CONFIG=minimal
+  - ARCH=x86_64 CONFIG=x11
+  - ARCH=x86 CONFIG=default
+  - ARCH=x86 CONFIG=minimal
+  - ARCH=x86 CONFIG=x11
+  
+# No-one cares about OS X x86 and X11 on OSX
 matrix:
   exclude:
     - os: osx
-      env: ARCH=x86
+      env: ARCH=x86 CONFIG=default
+    - os: osx
+      env: ARCH=x86 CONFIG=minimal
+    - os: osx
+      env: ARCH=x86 CONFIG=x11
+    - os: osx
+      env: ARCH=x86_64 CONFIG=x11
 
+sudo: true
+before_script:
+  - if [[ "$TRAVIS_OS_NAME" == "linux" && "$ARCH" == "x86" ]]; then sudo apt-get install gcc-multilib; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" && "$CONFIG" == "x11" && "$ARCH" == "x86_64" ]]; then sudo apt-get install libx11-dev; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" && "$CONFIG" == "x11" && "$ARCH" == "x86" ]]; then sudo apt-get install libx11-dev:i386; fi
+
+script:
+  - dub test --compiler=${DC} --arch=${ARCH} --config=${CONFIG}
+  - dub build --compiler=${DC} --arch=${ARCH} --config=${CONFIG} :example1
+  - file examples/example1/bin/example1
+  - ls -lh examples/example1/bin/example1
+  - strip examples/example1/bin/example1
+  - ls -lh examples/example1/bin/example1