Until recently, CMake reported VS2015 as not supporting constexpr.
However, constexpr support was added in the VS2015 release, and CMake
now reports accordingly.
The constexpr support in VS2015 is too buggy to build Better Enums.
This change disables testing on VS2015 with constexpr support, because
those tests will fail.
Also adapted to a change in the Cygwin path prefix in AppVeyor and
fixed an issue in the Travis build with wget being unable to retrieve
from www.cmake.org's new redirect to cmake.org.
To run tests with the system compiler, execute
make
To run tests with the system compiler in all configurations,
make default-all
To re-generate the examples from the documentation Markdown, and then
test all configurations,
make default-thorough
Other Makefile targets are for exhaustive testing with multiple
locally-installed compilers, or for use on CI servers, and are not for
general use.
Python and CxxTest are still required. On Windows, it is helpful to
have a Cygwin environment with a non-Cygwin CMake, and MSBuild.exe
should be in PATH.
Better Enums is now tested in fewer configurations. C++11 features are
no longer tested on clang 3.3, gcc 4.3-4.6, because CMake claims
(apparently falsely, in some cases) that those compilers don't support
constexpr and enum class.
