CMake Nightly Date Stamp
Use -fPIE if required by Qt.
Workaround bug in Qt 5.0.0 to 5.0.3 QStandardItemModel.

The commit in qtbase 9dfba89c (Add implementations of QAIM::sibling
in public APIs., 2012-09-26) added a buggy implementation of sibling(),
and the commit f136701b (Use the base implementation of
QAbstractItemModel::sibling in QSIM., 2013-02-21) resolves it.
Merge topic 'qt5-fixes' into next

1643b65 Workaround bug in Qt 5.0.0 to 5.0.3 QStandardItemModel.
0918f21 Use -fPIE if required by Qt.
Documentation: Clarify a few subtleties

* Clarify accepted values of <LANG> suffix in CMAKE_COMPILER_IS_GNU<LANG>.

* Clarify fact that target property GENERATOR_FILE_NAME usually cannot be
  used at configure time.

* Clarify that enable_language() can only be used in global scope of
  top-level project using language.

* State that enable_language(... OPTIONAL) currently doesn't work.

* Document regular expression operator precedence.
Merge topic 'doc-fixes' into next

3cf2f67 Documentation: Clarify a few subtleties
add_subdirectory: Compute output dir with consistent slashes (#10072)

When the command is invoked without an explicit build directory path we
compute it from the source directory path.  When either the source or
build tree is the root of a Windows drive letter it will have a trailing
slash.  Handle slashes consistently when substituting the current output
directory for the current source directory.

While at it, use cmSystemTools::IsSubDirectory instead of FindLastString
to verify that the source directory is a subdirectory.

Inspired-by: Graham Menhennitt <graham@menhennitt.com.au>
FindCUDA: Remove linkage against CUDA driver library (#13084)

The CUDA runtime library (libcudart) doesn't depend on the driver API
library (libcuda) and shouldn't be used to link CUDA run time codes.
FindCUDA: Add support for separable compilation

This adds a new variable, CUDA_SEPARABLE_COMPILATION, and two new
functions, CUDA_COMPUTE_SEPARABLE_COMPILATION_OBJECT_FILE_NAME and
CUDA_LINK_SEPARABLE_COMPILATION_OBJECTS.

When CUDA_SEPARABLE_COMPILATION is specified then CUDA runtime objects
will be compiled with the separable compilation flag.  These object
files are collected in a target named variable that can be used in
CUDA_COMPUTE_SEPARABLE_COMPILATION_OBJECT_FILE_NAME and
CUDA_LINK_SEPARABLE_COMPILATION_OBJECTS.
FindCUDA: Added cupti library.

In addition to adding the cupti library, find_local_library_first has
been renamed to cuda_find_local_library_first with a backward
compatibility macro to find_local_library_first.  Also added
cuda_find_local_library_first_with_path_ext to handle different paths.
Restore support for target names with '+' (#13986)

Extend the range of valid target names with the + sign.  This character
can commonly be used for target names, such as those containing 'c++'.
Add a test but skip it for Borland and Watcom tools which do not support
the character.

Suggested-By: Benjamin Kloster
FindQt4: Do not use qmake from Qt5

Wihtout this, if qmake binary is from Qt5 the FindQt4 fails even though
the Qt4 version of qmake would be installed as qmake-qt4.

On Archlinux this is the case.

Reviewed-by: Clinton Stimpson <clinton@elemtech.com>
Merge branch 'FindCUDA.cmake/DontLinkAgainstCUDADriver' into next
Merge branch 'FindCUDA.cmake/SeparableCompilation' into next
Merge branch 'FindCUDA.cmake/AddCUDA_cupti_LIBRARY' into next
Merge topic 'fix-transitive-target-names' into next

1bdd167 Restore support for target names with '+' (#13986)
Merge topic 'findqt4-withqt5' into next

2112341 FindQt4: Do not use qmake from Qt5
Merge topic 'FindImageMagick-v6.8.0-8'

5fe9855 FindImageMagick: Search quantum depth suffixes (#13859)
Merge topic 'FindCUDA.cmake/DontLinkAgainstCUDADriver'

3497bc2 FindCUDA: Remove linkage against CUDA driver library (#13084)
Merge topic 'FindCUDA.cmake/SeparableCompilation'

6a19150 FindCUDA: Add support for separable compilation