Use the __cplusplus and __STDC_VERSION__ macros to automatically
determine the default dialect for the compiler while determining its
id and version.

75644daf jsoncpp: Fix compilation as C99 on Solaris

3809150a Help: Document string(REGEX) input concatentation (#15742)
5f2c47c4 Help: Organize string command docs into sections

ef29f5ef Merge branch 'upstream-kwsys' into update-kwsys
7de8f67a KWSys 2015-09-11 (cfeb27cc)

4734df5f Windows: Set CMAKE_HOST_SYSTEM_VERSION with three components

These commands concatenate all their input before matching.  Document
this behavior.

Add section headers and titles for each command signature.  Group
related commands into sections.

In C99 mode, Solaris variants may already define isfinite, so check for
the existence first.

Extract upstream KWSys using the following shell commands.

$ git archive --prefix=upstream-kwsys/ cfeb27cc | tar x
$ git shortlog --no-merges --abbrev=8 --format='%h %s' dc3fdd7f..cfeb27cc
Gilles Khouzam (2):
      27714139 SystemTools: Call GetVersionEx more robustly
      cfeb27cc SystemTools: Report Windows 7, 8, 8.1 and 10 by name

db7f069a Windows: Fix 64-bit DLL module definition file generation on VS 2015

fd26a19a FindHDF5: Add NAMES_PER_DIR and introduce HDF5_PREFER_PARALLEL

ed258d60 Tests: Cover set_property for buildsystem directory properties
fb45c371 cmState: Only append non-empty values to buildsystem properties.
158f7e31 cmMakefile: Use appropriate parameter name.
08ce3f48 cmTarget: Only append non-empty values to buildsystem properties.

97ffbcd8 CMakeParseImplicitLinkInfo: Do not match "VAR=..." as link line (#15737)

2468eb33 Help: Document limitations of the OBJECT_DEPENDS source file property

5d6aa364 cmLocalGenerator: Always return the end snapshot state of a directory.
3f4e5e8c cmState: Return end snapshot for GetBuildsystemDirectoryParent.

With 64-bit Windows builds, there is no need to remove the leading
underscore from all the symbols.  This is because it does not have one
in the .obj file unless it is really in the name.  This did not cause
any trouble until VS 2015 which has some system functions that have a
leading underscore that end up in the .def file.

This is needed for proper makefile progress tracking.

The cmLocalGenerator is constructed at configure-time, but only used
at generate time.  The StateSnapshot member is currently populated
before configuring, so use the Makefile to get the end snapshot.

This is the appropriate snapshot for future use.  Existing users
of this method are mostly just calling GetDirectory on the result,
but the progress tracking of the Makefile generator needs a consistent
snapshot to be used, so the end snapshot should be consistently used.

The calls to find_program now use NAMES_PER_DIR so that the first executable
(e.g. h5pcc) appearing on their PATH will get chosen. The HDF5_PREFER_PARALLEL
variable swaps the search order when it is set to true in the event that a
directory being search contains both h5cc and h5pcc.

When compiling with

  LDFLAGS='-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld'

the compiler output includes a line like

  COLLECT_GCC_OPTIONS='-specs=/usr/lib/rpm/redhat/redhat-hardened-ld' ...

that our link line regex matches due to an argument ending in "-ld".
Since it is not really the link line no implicit link information is
dectected.  Exclude "VAR=..." lines from consideration as link lines to
fix this.

Extend the RunCMake.set_property test with cases covering buildsystem
directory properties:

* COMPILE_DEFINITIONS
* COMPILE_OPTIONS
* INCLUDE_DIRECTORIES

Also test a non-buildsystem property to document the equivalence
in behavior.

This is a change in behavior from CMake 3.3, but there is no semantic meaning
to empty entries in buildsystem properties.  This also restores behavior to
that of CMake 2.8.10.

This is a change in behavior from CMake 3.3, but there is no semantic meaning
to empty entries in buildsystem properties.  This also restores behavior to
that of CMake 2.8.10.

Call GetVersionEx with OSVERSIONINFOEX instead of OSVERSIONINFO so that
we can get the dwBuildNumber as a third version component.

9c4a500f cmSystemTools: Fix TrimWhitespace for non-ascii strings (#15735)
87a9061d cmSystemTools: Factor out a cm_isspace helper

150e1b27 Features: Extract strings from test binary more reliably (#15736)

4c7744c8 Revert "Windows: Fix CMAKE_HOST_SYSTEM_VERSION on Windows >= 8.1 (#15674)"

This reverts commit d4736d53.
RtlGetVersion is a private API not meant for public use.  Another
solution to detecting the Windows version will be needed.
Reported-by: Gilles Khouzam <Gilles.Khouzam@microsoft.com>

Since commit v3.1.0-rc1~635^2~7 (project: Add infrastructure for
recording CXX compiler features, 2013-10-17) we compile a test source to
a binary and then extract "<LANG>_FEATURES:..." strings from the binary
with the file(STRINGS) command.  Add a newline at the beginning of the
string literal to be sure file(STRINGS) can extract the first entry as a
string independent of whatever else the compiler may put before the
storage it allocates for the literal within the binary.

2a7772ff CPack: don't mangle CMake-special characters when applying default settings

4de7c812 CPack/Deb: enable per component setting of dependencies

d8e233d8 Help: Add notes for topic 'FindwxWidgets-updates'
15aacb68 FindwxWidgets: Add wxWidgets webview component
8122fbd0 FindwxWidgets: Expect wxWidgets 3.1
6089fde5 FindwxWidgets: allow specifying required version