Dependencies are now hosted in a github repository and this brings two advantages:
- Improved build time with travis since we no longer have to build each
dependency
- Less chance of build errors due to external servers being down since Github is
now the single point of failure
It appears the llvm.org/apt/ repository isn't always reliable. So let's
use the release tarball instead. Also, make using 3.4 conditional, so
we can use the clang 3.3 if things still manage to go awry in the
future. Note: using 3.3 means that we won't get leak detection.
I left the logic for using llvm.org/apt/, just in case we want try using
it again sometime.
- Valgrind configuration removed
- Fix errors reported by the undefined behavior sanitizer
- Travis will now run two build steps:
- A normal build of a shared library for unit testing(in parallel with gcc)
- A clang build with some sanitizers enabled for integration testing.
After these changes travis will run much faster, while providing valgrind-like
error detection.
