Backport upstream libarchive commit 2ecf8d1c1e (Try harder to detect
directories in zip archives, 2016-12-23).

Fixes: #16741

The KWSys `.gitattributes` file now defines custom attributes.
Git does not support these in a subdirectory where we are about
to place the content, so comment them out during import.
This also ensures that the `our-c-style` attribute on KWSys
sources does not activate the `format.clang-format` attribute
on the third-party import branch.

Provide a helper function that import scripts can use when the
third-party project defines custom Git attributes in its top-level
`.gitattributes` file.  These must be commented out because Git
does not support custom attributes in a subdirectory where we
where the third-party project is about to be merged.

Update our release scripts to fetch `refs/stage/master/head` from
the `gitlab.kitware.com` repository.  This will allow us to prepare
releases from staged commits before merging them to `master` or
`release`.

Backport upstream libarchive commit 70f497f456 (As per Cryptographic
Requirements, 2017-03-19).  Discard more bytes of the RC4 keystream
to reduce the possibility of non-random bytes.

Update our release scripts to fetch from the gitlab.kitware.com
repository instead of the cmake.org repository.  Revise our
mapping of special branch names to account for the refs that
now store them in the new repository.

We no longer push directly to cmake.org repositories.  Changes now
go through https://gitlab.kitware.com/cmake/cmake for integration.

Teach Sphinx and our own install rules to skip a `Help/dev` directory.
This will give us a place to put developer-only documentation that
should not be included in the user-facing documentation.  Add a
placeholder README.

Orion Poplawski authored 8 years ago and Brad King committed 8 years ago

When compiling KWIML tests with `-Werror=format-security` we get

    error: -Wformat-security ignored without -Wformat

Therefore we should disable both `format` and `format-security`
together.

This was added upstream but does not make sense in CMake because we
may replace the library with a logical target name that will not
work inside a `try_compile`.

It is not available on VS 2012 and below.  Use our own impl instead.

This type is not available on Windows compilers so for clients including
this header we need to use `la_ssize_t` instead as we do in `archive.h`.

Upstream libarchive now defines this macro in two places with the same
logic in both.  However, CMake's bundled copy disables this macro, so
we need to update the new location of its definition to be consistent.

Add `.clang-format` configuration files for Cuda test directories that
use `Standard: Cpp11`.  Otherwise clang-format splits the triple angle
brackets used for CUDA kernels.

The `default.css` static content is no longer placed in the qthelp
`_static` directory.  If it does not exist, skip over it and insert
the content of `basic.css` directly into `cmake.css`.

Gregor Jasny authored 8 years ago and Brad King committed 8 years ago

Sphinx 1.4 introduced a breaking change to `indexnode` by changing
the length of a tuple.  Teach our extension to produce a tuple of
the proper length for the version of Sphinx in use.

This gets rid of the "4 column based index found" warning.

Leave the option undocumented since it is not for general use.  We can
simply pass it through `SPHINX_FLAGS` when building for publication on
`cmake.org`.

Define `_WINSOCKAPI_` blank rather than to 1 in order to match the
value used by Microsoft's winsock header files.

Backported from upstream curl commit 192466e0 (cmake: Fix passing
_WINSOCKAPI_ macro to compiler, 2017-01-09).

Fixes: #16545

Add a version number to the `SetupForDevelopment.sh` script and use
a pre-commit hook to check when it changes.

The `Utilities/GitSetup` directory is useful only in Git work trees
and so does not need to be distributed with source tarballs.

GitSetup upstream added an attribute to export `.gitattributes` so that
importing snapshots into the sources of other projects would bring along
the attributes.  However, we don't want to export them from CMake.  Drop
`.gitattributes` entries not relevant to CMake.

This avoid build errors from the
    /usr/include/sys/feature_tests.h
include file which disallows setting XOpen
versions less than 6 when in C99 mode.

Iyyappa Murugandi authored 8 years ago and Brad King committed 8 years ago

The `Setup.Configuration.h` which is released by Microsoft is specific
to MSVC.  Update it to compile with non-MS toolchains like MinGW.

Iyyappa Murugandi authored 8 years ago and Brad King committed 8 years ago

The Visual Studio Setup team releases a `Setup.Configuration.h` header
under the MIT License for use by external applications to interact with
the Visual Studio Installer tool [1].  Import it into our source tree
for use by CMake.

[1] https://github.com/microsoft/vs-setup-samples

KWSys is now hosted on Kitware's GitLab instance.

We already disable the code using `HIDES_CURL_PRIVATE_SYMBOLS`, so skip
the code to set it too, thus avoiding unnecessary `message()` calls.