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Added a unit test for running a test command which exists but is not an executable, because it previously caused the outer ctest process to fail.

Fix cvs password problems during the CMake.CheckSourceTree test. Make sure cvs has access to the original value of the HOME environment variable and not the 'CMake testing' value of it so that any cvs passwords set up on the machine work to get the list of local modifications using 'cvs up'...

Previously this module gave only very brief documentation.  We extend
the module's documentation to describe CTestConfig.cmake, interaction
with dashboard scripts, and the CTEST_USE_LAUNCHERS option.

Fix issue #2336 - honor the -C arg to ctest. Honor it for all stages of running -D dashboards from the command line and running ctest_configure, ctest_build and ctest_test commands in -S scripts. Also, allow a script to change it by setting the CTEST_CONFIGURATION_TYPE variable: allows for multiple configuration build/test cycles within one script. Add a new signature for the cmake command build_command that accepts CONFIGURATION as one argument. The original build_command signature is still there, but now marked as deprecated in the documentation. Of course... also add CTestConfig tests to verify that -C is honored for -D dashboards and -S scripts.

We remove the shared library compile/link flags "-fPIC" and "-shared"
because they are not provided by all compilers on Linux.  This allows us
to drop code from the Linux-XL-*.cmake files that erases the bad flags.
All other supported compilers already provide their correct flags for
Linux in their own platform information files.

We factor flags from Platform/Linux-PGI-Fortran.cmake into language
independent helper modules

  Compiler/PGI.cmake
  Platform/Linux-PGI.cmake

and invoke the macros from

  Compiler/PGI-<lang>.cmake
  Platform/Linux-PGI-<lang>.cmake

This enables general support for the PGI compilers.

The CMAKE_DL_LIBS variable is set platform-wide by Linux.cmake so we do
not need to duplicate it in Linux-SunPro-<lang>.cmake files.

We consolidate duplicate code from Platform/Linux-Intel-<lang>.cmake
files into a macro defined in Platform/Linux-Intel.cmake.

The commit "Split GNU compiler information files" intended to move GNU
flags from the platform-wide Platform/SunOS.cmake module into

  Platform/SunOS-GNU-<lang>.cmake

using a helper module Platform/SunOS-GNU.cmake to consolidate flags.
However, it accidentally put Fortran flags in the C language module and
left out the Fortran module altogether.  This fixes those mistakes.

The GNU-specific link-type flags do not belong in the platform-wide
file.

Several platform-wide linker flag variables are defined in
Modules/Platform/<os>.cmake files for C and then copied by the
Modules/CMake<lang>Information.cmake file for each language.
We now use this approach for the variables

  CMAKE_EXE_EXPORTS_${lang}_FLAG
  CMAKE_SHARED_LIBRARY_SONAME_${lang}_FLAG
  CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS

to avoid duplication for multiple languages in each platform file.

This platform configuration variable is unused.  Modules are built using
the value of CMAKE_SHARED_LIBRARY_RUNTIME_${lang}_FLAG.

The commit "Split GNU compiler information files" broke the settings of

  CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS
  CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS

and started using just "-shared" for them.  This worked when tested on newer
Mac machines, but older ones really need "-dynamiclib" and "-bundle" (which are
the documented flags anyway).

The Intel Fortran plugin to VS defines VFFortranCompilerTool as the
compiler tool.  This commit fixes generated projects to use that tool
for per-source settings instead of VCCLCompilerTool.  We were already
using it for target-wide compiler settings.

This moves GNU compiler info on Windows into new-style modules

  Platform/Windows-GNU-<lang>.cmake

using language-independent helper module

  Platform/Windows-GNU.cmake

to define macros consolidating the information.

This moves GNU compiler flags into new-style modules

  Compiler/GNU-<lang>.cmake
  Platform/<os>-GNU-<lang>.cmake

We use language-independent helper modules

  Compiler/GNU.cmake
  Platform/<os>-GNU.cmake

to define macros consolidating the information.

In this test we start up a cmake script that runs a process that sleeps,
and the timeout for the script is shorter than the sleep time.  However,
in order to properly detect that the sleeping grandchild is killed when
the script times out we need to give sufficient time for the script to
start the grandchild.  Otherwise the log file for the grandchild is not
available.

On some (cygwin) builds our previous 1 second timeout for the script was
not long enough to let the interpreter load and start the grandchild.
We make the timeout time configurable by setting CTestTestTimeout_TIME
in the cache for CMake itself.  It tells the test how long to let the
script run.  The grandchild always sleeps for 4 seconds longer to ensure
a comfortable window during which the process tree can be killed.

We remove from Tests/CTestTest*/CMakeLists.txt some historical cruft
that is no longer used by the test suite.

The CMakeBackwardCompatibilityC module provides some try-compile results
that were automatically provided by CMake 1.4.  When performing the
checks for OS X universal binaries we just pick one architecture to get
through the checks without error.  Since CMake 1.4 did not support any
universal binaries, projects that want them should not depend on this
compatibility module anyway.

This is a GNU-specific option that should not be specified for all
compilers on Linux.  It tells the GNU compiler to pass -export-dynamic
to the linker to export symbols from executables for use by plugins.
Since we provide the ENABLE_EXPORTS target property to do the same thing
in a cross-platform way, there is no need to pass -rdynamic always.

Since the option is not useful for GNU tools and breaks other tools on
Linux we simply remove it from CMAKE_SHARED_LIBRARY_LINK_<lang>_FLAGS.
This also allows us to stop setting the variable in other Linux compiler
files just to erase the bad flag.

See issue #9985.

The curl library code assumes that HAVE_WINDOWS_H and similar macros are
not defined on Cygwin.  Its CMake code achieved this by not even testing
for the corresponding headers on UNIX platforms.  However, libarchive
does test HAVE_WINDOWS_H and confuses our curl build.  We avoid the
conflict by hard-coding the macros to 0 for UNIX builds inside the curl
tree.

This test requires that the dashboard script it drives be invoked with
"ctest -C <config> -S ...".  We create a "CTestTest_CONFIG" variable to
hold a configuration selected at test time.  We use the configuration
given to the outer CTest, if any, and then default to either Debug or
the CMAKE_BUILD_TYPE.

In order to kill process trees we need to list all processes to find
those whose parent we are killing.  We implement process listing on
OpenSolaris by using "ps -ef" and parsing the resulting format:

     UID   PID  PPID   C    STIME TTY         TIME CMD
     %*s    %d    %d   %*[^\n]\n

In order to kill process trees we need to list all processes to find
those whose parent we are killing.  We implement process listing on QNX
using "ps -Af" and parsing the resulting format:

  UID        PID       PPID  C STIME TTY          TIME CMD
  %*d         %d         %d  %*[^\n]\n

This was the only try_run() in libarchive, and the result was not used
in the source code.  We remove it to allow cross-compiling to work.

We extend the CTestTestTimeout test to check that when a test times out
its children (grandchildren of ctest) are killed.  Instead of running
the timeout executable directly, we run it through a cmake script that
redirects the timeout executable output to a file.  A second test later
runs and verifies that the timeout executable was unable to complete and
write data to the log file.  Only if the first inner test times out and
the second inner test passes (log is empty) does the CTestTestTimeout
test pass.

We enumerate processes to identify those whose parent is being killed so
that we can recursively kill the children.  Enumeration uses the
Process32(First|Next) windows API functions, which accept PROCESSENTRY32
objects to be filled.  This commit corrects the declaration of the entry
structure to account for its size on 64-bit Windows.