* Add BENCHMARK_BUILD_32_BITS option and add builders to test it
* Attempt to fix travis configuration
* Make add_required_cxx_compiler_flag cause an error when the flag isn't supported
* add gcc-multilib dependancy on travis
* attempt to fix travis.yml parsing error
* Require g++-multilib instead of gcc-multilib
* Add 32 bit release configurations
* Attempt to fix libc++ travis build w/ 32 bits
* Work around CMake configuration failure on Travis
This patch adds new builders that test against GCC 6 and Clang 3.8 respectivly.
They also enable both address and undefined sanitizer. MSAN currently won't work
since it requires a sanitized STL.
Google Benchmark's Travis build currently requires "sudo" to install newer
versions of CMake and similar. See this for more details:
https://docs.travis-ci.com/user/workers/container-based-infrastructure/
Since Google Benchmark was put into Travis before 2015-01-01, it gets the
standard infrastructure implicitly, so sudo works. But anyone who forks this
repository and tries to add Travis.CI (so they can see if the build works
before creating a PR) gets broken builds before this change.
This patch cleans up our use of generic macros and also merges changes in the
build system.
It adds options -DBENCHMARK_ENABLE_TESTING and -DBENCHMARK_ENABLE_SHARED.
