* Temporarily disable Melkor in test suite
The Makefile uses the -executable flag which doesn't work on RHEL5.
Disabling until I find a workaround for this.
* Patch Makefile in Melkor fuzzer
This replaces the `-executable` flag which is not supported by `find` on
CentOS 5.
* Respect CC environment variable
Several tests hard coded /usr/bin/cc which might not exist in some
environments. We first check the CC environment variable and fall back
to the hard coded path if CC is unset.
* Skip tests on GLIBC < 2.17
Some test binaries were linked against GLIBC 2.17. Skip tests which use
this binary if the platform does not have the required GLIBC version.
* Enable ccache in Docker in Travis builds
* Run `auditwheel repair` on the produced wheels
This will vendor the needed external shared libraries into the wheel and
tag it as manylinux1.
* Install ccache in Docker image
* Avoid using bind mount volume in Docker build
The bind mount volume wrote files as 'root' which causes issues with the
deploy script in Travis. Copying the source code into the image and
retrieving the built wheels instead of mounting the source tree fixes
this issue.
* Fix missing build folder when building with Docker
After finishing the build inside Docker we need the build directory from
the container to be able to deploy the built artifacts with deploy.sh.
* Use the right Python interpreter for Linux builds
The Dockerized .travis.yml builds attempt to invoke the interpreter in
the PYTHON_BINARY environment variable, which is only valid inside the
Docker image. To fix this, override the variable on Linux for tasks
which require the host's Python interpreter.
* Fix missing pip installation in Travis
The Ubuntu image in Travis does not come with `pip` preinstalled for
Python 3.
* Remove .git directory from .dockerignore
As `setup.py` uses `git` to determine the version number we need to copy
the contents of `.git` into the image.
