Fixing an unused parameter warning.
Merge topic 'Add-coverage.py-Coverage' into next

df9aaf5 Fixing an unused parameter warning.
CMake Nightly Date Stamp
Revert "Make the dummy method public."

This reverts commit fb8329d630d11d7ca9b7b288307c3c2bde3d7bf1.
Merge topic 'INTERFACE_LIBRARY-target-type' into next

40b09d3 Revert "Make the dummy method public."
Add the INTERFACE_LIBRARY target type.

This target type only contains INTERFACE_* properties, so it can be
used as a structural node. The target-specific commands enforce
that they may only be used with the INTERFACE keyword when used
with INTERFACE_LIBRARY targets. The old-style target properties
matching LINK_INTERFACE_LIBRARIES_<CONFIG> are always ignored for
this target type.

The name of the INTERFACE_LIBRARY must match a validity generator
expression. The validity is similar to that of an ALIAS target,
but with the additional restriction that it may not contain
double colons. Double colons will carry the meaning of IMPORTED
or ALIAS targets in CMake 2.8.13.

An ALIAS target may be created for an INTERFACE library.

At this point it can not be exported and does not appear in the
buildsystem and project files are not created for them. That may
be added as a feature in a later commit.

The generators need some changes to handle the INTERFACE_LIBRARY
targets returned by cmComputeLinkInterface::GetItems. The Ninja
generator does not use that API, so it doesn't require changes
related to that.
Make it possible to export() INTERFACE_LIBRARY targets.
Make it possible to install(EXPORT) INTERFACE_LIBRARY targets.
Merge topic 'INTERFACE_LIBRARY-target-type' into next

60a6b16 Make it possible to install(EXPORT) INTERFACE_LIBRARY targets.
a198041 Make it possible to export() INTERFACE_LIBRARY targets.
4c505db Add the INTERFACE_LIBRARY target type.
Merge topic 'fix-duplicate-custom-commands'

dccd494 Use first custom command for the same output (#14446)
Merge topic 'osx-find-sdk-frameworks'

1fce189 OS X: Search system SDKs for frameworks
Merge branch 'master' into next
Revert "FindQt4: Clear the QT_QMAKE_EXECUTABLE variable if Qt4 is not found."

This reverts commit acbb5a3a5b5366e791aa561eb77366869ab3a1c4.
Merge topic 'FindQt4-clear-variable' into next

20c882b Revert "FindQt4: Clear the QT_QMAKE_EXECUTABLE variable if Qt4 is not found."
Fixing the unused parameter warning in a more concise way.
Merge topic 'Add-coverage.py-Coverage' into next

36e2289 Fixing the unused parameter warning in a more concise way.