This release adds support for use of the gflags library as external dependency not only in projects using CMake, but also Bazel, or pkg-config. One new minor feature is added in this release: when a command flag argument contains dashes, these are implicitly converted to underscores. This is to allow those used to separate words of the flag name by dashes to do so, while the flag variable names are required to use underscores.
Memory leaks reported by valgrind should be resolved by this release.
This release fixes build errors with MS Visual Studio 2015.
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