BUG: Fix issue #8177. Modify the system PATH for all users when requested during an NSIS based installer run. Thanks to Bart Janssens for the patch.

Make sure CTestTest scripts honor the CMAKE_TEST_GENERATOR so that if the generator to build cmake is different than the one used for tests (watcom) is used.

The commit "Fix KWSys SystemTools build on cygwin with -mwin32" tried to
restore the state of the _WIN32 definition that was broken by the commit
"Optimize KWSys SystemTools::FileExists on Windows".  It did so for the
case of building with -mwin32 on cygwin, but since including <windows.h>
defines _WIN32, it failed for the case of not using -mwin32.

This commit restores the state of _WIN32 in all cases by undefining it
after including <windows.h> if it was not defined beforehand.

Uncommented the dependency of CTestTestNoExe on CTestTestNoBuild so that it will work in parallel now.

Xcode 1.5 writes helper scripts at the projectDirPath location for
targets that do not set SYMROOT.  We now add SYMROOT to custom targets
so that all targets set it.  This prevents Xcode 1.5 from touching the
source directory now that we always set projectDirPath.

See issue #8481.

Now only the dependencies for the file where the dependencies actually may
have changed are rescanned, before that this was done for all source files
even if only one source file had changed.
This reduces e.g. on my machine the time for scanning the dependencies
of kdelibs/khtml/ when only one file (khtml_global.cpp) has changed from
around 7.5 seconds to 1.2 seconds.

The tests succeed, it does what I expected it to do on kdelibs, and Brad
also reviewed the patch, so I think it should be ok.

Alex

Set new ctest tests to always run, whether CTEST_TEST_CTEST is enabled or not.  Changed parallel test to be portable.

Commit "Optimize KWSys SystemTools::FileExists on Windows" accidentally
added "#undef _WIN32" when including <windows.h> on cygwin, which breaks
builds using the -mwin32 flag.  This commit removes that line and fixes
the real error it was intended to avoid.

We set the variable 'XCODE_VERSION' in the CMake language to the Xcode
version string (e.g. "3.1.2").  Platform config files may use it later.

Added a command to make the output directory.  This is to fix the XCode build that uses a different output directory than other systems, and rather than try to match that we'll just make it.

fix issue 9346.  add binary directory to window title to make it easier to deal with multiple cmake-gui instances