ENH: Add RecurseThroughSymlinks data member to kwsys::Glob. Allows recursive globs to skip symlinks when necessary. Default to true for backwards compatible behavior. Used from the ctest coverage handler to avoid recursing through the '/Applications' directory on the Mac looking for *.da files... Should fix the hangs reported recently by Mac CMake dashboard submitters.

According to "man select" on Linux it is possible that select() lies
about data being ready on a pipe in some subtle cases.  We deal with
this by switching to non-blocking i/o and checking for EAGAIN.  See
issue #7180.

  - Patch from Matthew McCormick, slightly tweaked
  - See issue #6833

BUG:  FormatMessage can return a NULL message.  Add check for NULL pointer.

BUG:cpuinfo format are different between Linux and Cygwin. Cygwin does not have physical id tag or cpu cores tag.

ENH: avoid divide by zero, temporary fix until cygwin cpu file is read better, bad cpu info is better than a crash

BUG:Fixed NumberOfLogicalCPU, NumberOfPhysicalCPU and LogicalProcessorsPerPhysical under Linux. Some part was just wrong. Some other part missed to take the multicore value into account.

  - Add an argument to registry read/write/delete methods to specify
    a 32-bit or 64-bit view.
  - Default is the bit-ness of the running program.
  - See issue #7095.

  - Tells CMake about the KWSYS_HEADER macro.
  - Enables implicit dependencies of private source files.
  - When a CMake new enough to support the property is required
    the "#if 0" hack can be removed from the source files.

  - Patch from Pierre Habouzit

ENH: all ctype function have the same issue: char can be signed or unsigned, since isspace only deal with >=0 value (except EOF) one has to first cast it to unsigned char

COMP: sprintf warnings. DWORD should use %ld rather than %d. Also, const char *p, a shadowed variable warning.

  - Remove two unused variables.
  - Replace dynamically allocated array with static.

BUG: Fix kwsysSystem_Shell_GetArgumentForWindows to reset the windows trailing backslash count to zero when a make variable reference is encountered.

ENH: Set CMake Policy CMP0003 to NEW behavior to build without warnings with the upcoming CMake 2.6 release.

COMP: Avoid warning in kwsys IOStream.cxx when the helper functions are not needed.  Define one public symbol to avoid complaints from archivers about empty object files.