Escape target flags taken from COMPILE_OPTIONS

Factor appending of individual flags out into an AppendFlagEscape method
in cmLocalGenerator and teach it to use EscapeForShell.  Update all
COMPILE_OPTIONS handling to use AppendFlagEscape.

Override the method in the Xcode generator to use its custom escape
implementation.

Teach the CompileOptions test to add an option that requires escaping
everywhere instead of just with the GNU tools.

1 files changed, 1 insertions, 0 deletions

diff --git a/Source/cmLocalXCodeGenerator.h b/Source/cmLocalXCodeGenerator.h
index eab228f6be..d97a41cea6 100644
--- a/Source/cmLocalXCodeGenerator.h
+++ b/Source/cmLocalXCodeGenerator.h
@@ -28,6 +28,7 @@ public:
 
   virtual ~cmLocalXCodeGenerator();
   virtual std::string GetTargetDirectory(cmTarget const& target) const;
+  virtual void AppendFlagEscape(std::string& flags, const char* rawFlag);
 private:
 
 };