use systemtap on linux if installed, for dtrace functionality

cmake/dtrace.cmake

@@ -57,6 +57,13 @@ IF(ENABLE_DTRACE)
    ${CMAKE_BINARY_DIR}/include/probes_mysql_dtrace.h
    ${CMAKE_BINARY_DIR}/include/probes_mysql_nodtrace.h
   )
+  IF(CMAKE_SYSTEM_NAME MATCHES "Linux")
+   # Systemtap object
+   EXECUTE_PROCESS(
+     COMMAND ${DTRACE} -G -s ${CMAKE_SOURCE_DIR}/include/probes_mysql.d.base
+     -o ${CMAKE_BINARY_DIR}/probes_mysql.o
+   )
+  ENDIF()
   ADD_CUSTOM_TARGET(gen_dtrace_header
   DEPENDS  
   ${CMAKE_BINARY_DIR}/include/probes_mysql.d
@@ -66,10 +73,14 @@ IF(ENABLE_DTRACE)
 ENDIF()
 
 
-MACRO (DTRACE_INSTRUMENT target)
+MACRO(DTRACE_INSTRUMENT target)
   IF(ENABLE_DTRACE)
     ADD_DEPENDENCIES(${target} gen_dtrace_header)
 
+    IF(CMAKE_SYSTEM_NAME MATCHES "Linux")
+      TARGET_LINK_LIBRARIES(${target}  ${CMAKE_BINARY_DIR}/probes_mysql.o)
+    ENDIF()
+
     # On Solaris, invoke dtrace -G to generate object file and
     # link it together with target.
     IF(CMAKE_SYSTEM_NAME MATCHES "SunOS")