Tweaks to travis configuration and cmake

Travis:
* Don't install all g++ versions on all build targets.
* Install addons per target to have finer control on what is needed
* Use WSREP_STRICT_BUILD_FLAGS on other targets than GCC 4.8

cmake:
* Fixed CMakeLists.txt to check only boost libraries which are
  actually needed

.travis.yml

@@ -5,60 +5,116 @@ compiler:
   - gcc
 # - clang - does not compile yet
 
-# Build type and option combinations
-# env:
-#  - TYPE=Debug ASAN=ON
-#  - TYPE=RelWithDebInfo ASAN=ON
-#  - CC=gcc-5 CXX=g++-5 TYPE=Debug ASAN=ON
-#  - CC=gcc-5 CXX=g++-5 TYPE=RelWithDebInfo ASAN=ON
 
 matrix:
   include:
     - os: linux
       name: "GCC 4.8 Debug"
-      env: MATRIX_EVAL="TYPE=Debug ASAN=ON DBSIM=OFF"
+      addons:
+        apt:
+          packages:
+            - cmake
+            - libboost-test-dev
+      env: MATRIX_EVAL="TYPE=Debug STRICT=OFF ASAN=ON DBSIM=OFF"
     - os: linux
       name: "GCC 4.8 RelWithDebInfo"
-      env: MATRIX_EVAL="TYPE=RelWithDebInfo ASAN=ON DBSIM=OFF"
+      addons:
+        apt:
+          packages:
+            - cmake
+            - libboost-test-dev
+      env: MATRIX_EVAL="TYPE=RelWithDebInfo STRICT=OFF ASAN=ON DBSIM=OFF"
     - os: linux
       name: "GCC 5 Debug"
-      env: MATRIX_EVAL="CC=gcc-5 CXX=g++-5 TYPE=Debug ASAN=OFF DBSIM=ON"
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-5
+            - cmake
+            - libboost-test-dev
+            - libboost-program-options-dev
+            - libboost-filesystem-dev
+            - libboost-thread-dev
+      env: MATRIX_EVAL="CC=gcc-5 CXX=g++-5 TYPE=Debug STRICT=ON ASAN=OFF DBSIM=ON"
     - os: linux
       name: "GCC 5 RelWithDebInfo"
-      env: MATRIX_EVAL="CC=gcc-5 CXX=g++-5 TYPE=RelWithDebInfo ASAN=OFF DBSIM=ON"
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-5
+            - cmake
+            - libboost-test-dev
+            - libboost-program-options-dev
+            - libboost-filesystem-dev
+            - libboost-thread-dev
+      env: MATRIX_EVAL="CC=gcc-5 CXX=g++-5 TYPE=RelWithDebInfo STRICT=ON ASAN=OFF DBSIM=ON"
     - os: linux
       name: "GCC 6 Debug"
-      env: MATRIX_EVAL="CC=gcc-6 CXX=g++-6 TYPE=Debug ASAN=OFF DBSIM=ON"
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-6
+            - cmake
+            - libboost-test-dev
+            - libboost-program-options-dev
+            - libboost-filesystem-dev
+            - libboost-thread-dev
+      env: MATRIX_EVAL="CC=gcc-6 CXX=g++-6 TYPE=Debug STRICT=ON ASAN=OFF DBSIM=ON"
     - os: linux
       name: "GCC 6 RelWithDebInfo"
-      env: MATRIX_EVAL="CC=gcc-6 CXX=g++-6 TYPE=RelWithDebInfo ASAN=OFF DBSIM=ON"
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-6
+            - cmake
+            - libboost-test-dev
+            - libboost-program-options-dev
+            - libboost-filesystem-dev
+            - libboost-thread-dev
+      env: MATRIX_EVAL="CC=gcc-6 CXX=g++-6 TYPE=RelWithDebInfo STRICT=ON ASAN=OFF DBSIM=ON"
     - os: linux
       name: "GCC 7 Debug"
-      env: MATRIX_EVAL="CC=gcc-7 CXX=g++-7 TYPE=Debug ASAN=OFF DBSIM=ON"
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-7
+            - cmake
+            - libboost-test-dev
+            - libboost-program-options-dev
+            - libboost-filesystem-dev
+            - libboost-thread-dev
+      env: MATRIX_EVAL="CC=gcc-7 CXX=g++-7 TYPE=Debug STRICT=ON ASAN=OFF DBSIM=ON"
     - os: linux
       name: "GCC 7 RelWithDebInfo"
-      env: MATRIX_EVAL="CC=gcc-7 CXX=g++-7 TYPE=RelWithDebInfo ASAN=OFF DBSIM=ON"
-
-addons:
-  apt:
-    sources:
-      - ubuntu-toolchain-r-test
-    packages:
-      - cmake
-      - g++-5
-      - g++-6
-      - g++-7
-      - libboost-test-dev
-      - libboost-program-options-dev
-      - libboost-filesystem-dev
-      - libboost-thread-dev
-
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-7
+            - cmake
+            - libboost-test-dev
+            - libboost-program-options-dev
+            - libboost-filesystem-dev
+            - libboost-thread-dev
+      env: MATRIX_EVAL="CC=gcc-7 CXX=g++-7 TYPE=RelWithDebInfo STRICT=ON ASAN=OFF DBSIM=ON"
 before_install:
   - eval ${MATRIX_EVAL}
 
 script:
-  - echo CC=${CC} CXX=${CXX} TYPE=${TYPE} ASAN=${ASAN} DBSIM=${DBSIM}
+  - echo CC=${CC} CXX=${CXX} TYPE=${TYPE} STRICT=${STRICT} ASAN=${ASAN} DBSIM=${DBSIM}
   - cmake . -DCMAKE_BUILD_TYPE=${TYPE}
+            -DWSREP_LIB_STRICT_BUILD_FLAGS:BOOL=${STRICT}
             -DWSREP_LIB_WITH_UNIT_TESTS:BOOL=ON
             -DWSREP_LIB_WITH_DBSIM:BOOL=${DBSIM}
             -DWSREP_LIB_WITH_ASAN:BOOL=${ASAN}

CMakeLists.txt

@@ -38,9 +38,14 @@ include_directories("${CMAKE_CURRENT_SOURCE_DIR}/include")
 include_directories("${CMAKE_CURRENT_SOURCE_DIR}/wsrep-API/v26")
 link_directories("${CMAKE_CURRENT_SOURCE_DIR}/wsrep")
 
-if (WSREP_LIB_WITH_UNIT_TESTS OR WSREP_LIB_WITH_DBSIM)
+if (WSREP_LIB_WITH_UNIT_TESTS)
   find_package(Boost 1.54.0 REQUIRED
     unit_test_framework
+    )
+endif()
+
+if (WSREP_LIB_WITH_DBSIM)
+  find_package(Boost 1.54.0 REQUIRED
     program_options
     filesystem
     thread