fix initial sip binding creation on windows

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@13734 c8812cc2-4d05-0410-92ff-de0c093fc19c

cmake/SIPMacros.cmake

@@ -85,20 +85,10 @@ MACRO(ADD_SIP_PYTHON_MODULE MODULE_NAME MODULE_SIP)
         ENDIF( ${CONCAT_NUM} LESS ${SIP_CONCAT_PARTS} )
     ENDFOREACH(CONCAT_NUM RANGE 0 ${SIP_CONCAT_PARTS} )
 
-    IF(NOT WIN32)
-        SET(TOUCH_COMMAND touch)
-    ELSE(NOT WIN32)
-        SET(TOUCH_COMMAND echo)
-        # instead of a touch command, give out the name and append to the files
-        # this is basically what the touch command does.
-        FOREACH(filename ${_sip_output_files})
-            FILE(APPEND ${filename} "")
-        ENDFOREACH(filename ${_sip_output_files})
-    ENDIF(NOT WIN32)
     ADD_CUSTOM_COMMAND(
         OUTPUT ${_sip_output_files} 
         COMMAND ${CMAKE_COMMAND} -E echo ${message}
-        COMMAND ${TOUCH_COMMAND} ${_sip_output_files} 
+        COMMAND ${CMAKE_COMMAND} -E touch ${_sip_output_files} 
         COMMAND ${SIP_BINARY_PATH} ${_sip_tags} ${_sip_x} ${SIP_EXTRA_OPTIONS} -j ${SIP_CONCAT_PARTS} -c ${CMAKE_CURRENT_BINARY_DIR}/${_module_path} ${_sip_includes} ${_abs_module_sip}
         DEPENDS ${_abs_module_sip} ${SIP_EXTRA_FILES_DEPEND}
     )