ENH: Add -DWIN32 compilation option for kml library.

Utilities/otbkml/CMakeLists.txt

@@ -166,6 +166,11 @@ IF(CMAKE_COMPILER_IS_GNUCXX)
         SET_SOURCE_FILES_PROPERTIES( ${f} PROPERTIES COMPILE_FLAGS -w )
   ENDFOREACH(f)
 ENDIF(CMAKE_COMPILER_IS_GNUCXX)
+IF(WIN32)
+        IF(NOT CYGWIN)
+                ADD_DEFINITIONS(-DWIN32)
+        ENDIF(NOT CYGWIN)
+ENDIF(WIN32)
 
 ADD_LIBRARY(otbkml ${libkml_SOURCES} )
 IF( OTB_USE_EXTERNAL_EXPAT )