travis: first try of a Travis-CI config

most parts copied from cpp-netlib

cmake/travis: don't run test suite for gtest/gmock by default

heavily reduces build time (especially on travis)

travis/cmake: disable LLVM's libc++

Author: torbjoernk

.travis.yml

@@ -0,0 +1,32 @@
+language:
+  - cpp
+
+compiler:
+  - gcc
+  - clang
+
+env:
+  - CMAKE_BUILD_TYPE="Release"
+  - CMAKE_BUILD_TYPE="Debug"
+
+before_install:
+  - sudo add-apt-repository ppa:ubuntu-toolchain-r/test --yes # libstdc++-4.8
+  - if [ "${CXX}" == "clang++" ]; then sudo add-apt-repository --yes ppa:h-rayflood/llvm; fi # clang++-3.2
+  - sudo apt-get update
+
+install:
+  - if [ "${CXX}" == "clang++" ]; then sudo apt-get -qq install clang-3.2; fi
+  - sudo apt-get install g++-4.8; # clang need it for libstdc++ update
+
+before_script:
+  # update compilers
+  - if [ "${CXX}" == "g++" ]; then export CXX="g++-4.8" CC="gcc-4.8"; fi
+  - if [ "${CXX}" == "clang++" ]; then export CXX="clang++-3.2" CC="clang-3.2"; fi
+
+script:
+  - mkdir build
+  - cd build
+  - cmake -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -Dpfasst_DISABLE_LIBCXX=ON -Dpfasst_BUILD_TESTS=ON ..
+  - make
+  - make test
+

3rdparty/CMakeLists.txt

@@ -18,13 +18,9 @@ if(pfasst_BUILD_TESTS)
       CMAKE_ARGS -DCMAKE_BUILD_TYPE=Release
       -Dgtest_force_shared_crt=ON
       -DCMAKE_VERBOSE_MAKEFILE=ON
-      -Dgmock_build_tests=ON
+      -Dgmock_build_tests=${gtest_BUILD_TESTS}
       # Disable install step
       INSTALL_COMMAND ""
-      # Run tests
-      TEST_BEFORE_INSTALL ON
-      TEST_AFTER_INSTALL ON
-      TEST_COMMAND make test
       # Wrap download, configure and build steps in a script to log output
       LOG_DOWNLOAD ON
       LOG_CONFIGURE ON

CMakeLists.txt

@@ -10,6 +10,7 @@ include(ExternalProject)
 # Set default ExternalProject root directory
 set_directory_properties(PROPERTIES EP_PREFIX ${CMAKE_BINARY_DIR}/3rdparty)
 
+option(pfasst_DISABLE_LIBCXX "Disable use of LLVM's libstdc++ when compiling with Clang." ON)
 option(pfasst_BUILD_TESTS "Build test suite for PFASST." ON)
 
 # check for C++11 support