Enable ASAN for clang

.travis.yml

@@ -14,10 +14,14 @@ addons:
       - doxygen
       - mingw-w64
       - mingw-w64-tools
+env:
+  global:
+    - CMAKE_USE_ASAN=OFF
 matrix:
   include:
-    - env: COMPILER=clang++-3.6
-    - env: COMPILER=g++-4.8
+    - env: C_COMPILER=clang-3.6 CXX_COMPILER=clang++-3.6
+    - env: C_COMPILER=clang-3.6 CXX_COMPILER=clang++-3.6 CMAKE_USE_ASAN=ON
+    - env: C_COMPILER=gcc-4.8 CXX_COMPILER=g++-4.8
     - env: SCAN_BUILD=true
     - env: CROSS=mingw
     - env: CROSS=android API_LEVEL=android-15
@@ -42,8 +46,11 @@ before_install:
       export ANDROID_NDK=$(pwd)/$NDK;
     fi
 before_script:
-  - if [[ -n $COMPILER ]]; then
-      export CXX=$COMPILER;
+  - if [[ -n $C_COMPILER ]]; then
+      export CC=$C_COMPILER;
+    fi
+  - if [[ -n $CXX_COMPILER ]]; then
+      export CXX=$CXX_COMPILER;
     fi
   - if [[ -n $CROSS ]]; then
       export TOOLCHAIN=-DCMAKE_TOOLCHAIN_FILE=../cmake/toolchain-cross-$CROSS.cmake;
@@ -52,7 +59,7 @@ before_script:
       export TOOLCHAIN="$TOOLCHAIN -DANDROID_NATIVE_API_LEVEL=$API_LEVEL";
     fi
   - mkdir build && cd build
-  - $SCAN_BUILD_PATH cmake -DCMAKE_BUILD_TYPE=Debug $TOOLCHAIN ..;
+  - $SCAN_BUILD_PATH cmake -DCMAKE_BUILD_TYPE=Debug -DSANITIZE_ADDRESS=$CMAKE_USE_ASAN $TOOLCHAIN ..;
 script:
   - $SCAN_BUILD_PATH cmake --build .
   - if [[ $TRAVIS_OS_NAME = "linux" && -z $CROSS ]]; then