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SWIG fails with a redefined macro error when `-dllimport` is specified
more than once.  One case where you would want to specify your own
dllimport is when using SWIG with netstandard2.0.  .NET Core does not
search for shared library like Mono or .NET, so you need a fully
qualified shared library name.

22f8a465 Android: Do not pass sysroot include for standalone toolchain
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !952

5f93bf78 Android: Detect API version of standalone toolchain with unified headers
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !950

d6051ca3 execute_process: Add option to get results of every child
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !702

2042cae9 CPack-FreeBSD: add a generator for FreeBSD pkg(8)
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !693

414438b2 CUDA: Add option to run the compiler through launcher tools
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !949

fcbecbd2 FindHTMLHelp: Use PATH_SUFFIXES to search under Program Files
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !948

3d1c3e0d Merge branch 'upstream-KWSys' into update-kwsys
a3275878 KWSys 2017-06-09 (a700e2ab)
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !947

82be694c file(GENERATE): Add policy CMP0070 to define relative path behavior
69050f4d Tests: Use full output paths in file(GENERATE) calls
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !943

Add a `RESULTS_VARIABLE` option to get the results of all children
in a pipeline of one or more `COMMAND`s.

Adds an option CPACK_ENABLE_FREEBSD_PKG to allow CPack to look
for FreeBSD's libpkg / pkg(8). If this is set and the libpkg
headers and library are found (which they will be, by default,
on any FreeBSD system), then add a FreeBSD pkg(8) generator.

The FreeBSD package tool pkg(8) uses tar.xz files (.txz) with two
metadata files embedded (+MANIFEST and +COMPACT_MANIFEST).
This introduces a bunch of FreeBSD-specific CPACK_FREEBSD_PACKAGE_*
variables for filling in the metadata; the Debian generator does
something similar. Documentation for the CPack CMake-script is styled
after the Debian generator.

Implementation notes:
 - Checks for libpkg -- the underlying implementation for pkg(8) --
   and includes FreeBSD package-generation if building CMake on
   a UNIX host. Since libpkg can be used on BSDs, Linux and OSX,
   this potentially adds one more packaging format. In practice,
   this will only happen on FreeBSD and DragonflyBSD.
 - Copy-paste from cmCPackArchiveGenerator to special-case
   the metadata generation and to run around the internal
   archive generation: use libpkg instead.
 - Generating the metadata files is a little contrived.
 - Most of the validation logic for package settings is in
   CPackFreeBSD.cmake, as well as the code that tries to re-use
   packaging settings that may already be set up for Debian.
 - libpkg has its own notion of output filename, so we have
   another contrived bit of code that munges the output file
   list so that CPack can find the output.
 - Stick with C++98.

The change in commit v3.8.0-rc1~60^2 (Android: Pass sysroot include
directory explicitly, 2017-01-20) does not make sense when compiling
with a standalone toolchain which is tied to a single API version.
Drop the explicit include directory so that the compiler uses its
default system include order.

Fixes: #16954

A standalone toolchain with unified headers keeps the `__ANDROID_API__`
macro in the `bin/clang` launcher instead of in `api-level.h`.

Issue: #16954

Add a `CUDA_COMPILER_LAUNCHER` target property like those added for C
and CXX by commit v3.4.0-rc1~450^2 (Add options to launch the compiler
through tools like ccache or distcc, 2015-06-04).

Fixes: #16953

The find commands already know how to search in variants of the
Program Files folders on Windows.  Use PATH_SUFFIXES to tell them
under what directory within Program Files to find htmlhelp.

Fixes: #16950

* upstream-KWSys:
  KWSys 2017-06-09 (a700e2ab)

Code extracted from:

    https://gitlab.kitware.com/utils/kwsys.git

at commit a700e2ab06e2741e4955a1aa120293bf78b8fcac (master).

Upstream Shortlog
-----------------

Brad King (1):
      7e04a3d2 SystemTools: Remove RemoveEmptyPathElements method

Previously `file(GENERATE)` did not define any behavior for relative
paths given to the `OUTPUT` or `INPUT` arguments.  Define behavior
consistent with CMake conventions and add a policy to provide
compatibility for projects that relied on the old accidental behavior.

Fixes: #16786

c41a7c7d file: Normalize GENERATE command input and output file paths
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !940

a0436a2f SDCC: Remove superfluous whitespace from link line
dcf559d0 SDCC: Do not explicitly ask linker to generate Intel Hex files
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !942

994beddb CMakeSetupDialog: Pass QPoint by value
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !946

5b02bcf6 QtDialog/FirstConfigure: remove 'return' from void expression
2d1c05c1 cmGlobalGenerator: remove 'return' from void expression
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !941

62eec34c Add CM_OVERRIDE to CPack generator destructors
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !939

83784ed1 bootstrap: remove leftover empty variable dereference
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !944

522c92d7 FindDoxygen: Create imported targets at most once in a given scope
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !945

The imported targets added by commit v3.9.0-rc1~55^2 (Improve Doxygen
support, 2017-04-10) need to be guarded against duplicate creation on
multiple inclusion.

f44d9bcc C++ feature checks: Improve exclusion of "0 Warning(s)"
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !938

This was missed in 9c0d1e75 when the for loop
that used this as loop variable was removed.

We don't define behavior for relative paths to the OUTPUT argument.
Fix our tests to use full paths.