Moved a couple of C++-specific warning flags from GCC_WARNINGS to...

Moved a couple of C++-specific warning flags from GCC_WARNINGS to GCC_CXX_WARNINGS.  This fixes a couple of non-fatal warning messages about unknown flags on the mac.

indra/cmake/00-Common.cmake

@@ -192,13 +192,13 @@ endif (DARWIN)
 
 
 if (LINUX OR DARWIN)
-  set(GCC_WARNINGS "-Wall -Wno-sign-compare -Wno-trigraphs -Wno-non-virtual-dtor -Woverloaded-virtual")
+  set(GCC_WARNINGS "-Wall -Wno-sign-compare -Wno-trigraphs")
 
   if (NOT GCC_DISABLE_FATAL_WARNINGS)
     set(GCC_WARNINGS "${GCC_WARNINGS} -Werror")
   endif (NOT GCC_DISABLE_FATAL_WARNINGS)
 
-  set(GCC_CXX_WARNINGS "${GCC_WARNINGS} -Wno-reorder")
+  set(GCC_CXX_WARNINGS "${GCC_WARNINGS} -Wno-reorder -Wno-non-virtual-dtor -Woverloaded-virtual")
 
   set(CMAKE_C_FLAGS "${GCC_WARNINGS} ${CMAKE_C_FLAGS}")
   set(CMAKE_CXX_FLAGS "${GCC_CXX_WARNINGS} ${CMAKE_CXX_FLAGS}")