BUG: Enabled use of EscapeForShell to properly escape custom command lines.  This addresses bug#3786 for Xcode.

BUG: Centralized generation of command line arguments in escaped form.  This addresses bug#3786 for several platforms.

BUG: Windows_ShellArgument: need to escape if the string contains one of a set of special characters as well as spaces.  Moved test for needing escapes to a separate method kwsysSystemWindowsShellArgumentNeedsEscape.

ENH: Adding 'System' component of C sources to hold system tools written in C.  Moved windows shell command line argument escaping code to kwsysSystem_Windows_ShellArgument and kwsysSystem_Windows_ShellArgumentSize.

ENH: Added KWSYS_SHARED_FORWARD_OPTION_COMMAND option to allow users to replace the command executed.  Extended documentation at top of file.

jasper (jpeg2000), libxml2 and libxslt and openssl and the accompanying
license (BSD)

Alex

CHECK_CXX_COMPILER_FLAG("-Wall" COMPILER_SUPPORTS_WALL)

Alex

ENH: Added test for linking to a static library that is next to a shared library.  See bug#1644 for related changes.

ENH: Adding support to link specifically to an archive or a shared library based on the file name specified.  This fixes the problem of having -lfoo linking to libfoo.so even when it came from libfoo.a being specified.