refs #4871 remove cmake warning about -Wcast-align. It's been long enough and...

refs #4871 remove cmake warning about -Wcast-align.  It's been long enough and we're not fixing it any time soon.

git-svn-id: file:///svn/toku/tokudb@54397 c7de825b-a66e-492c-adef-691d508d4ae1

cmake_modules/TokuSetupCompiler.cmake

@@ -152,9 +152,8 @@ set_cflags_if_supported(
   #-Wvector-optimization-performance
   )
 
-if (CMAKE_CXX_COMPILER_ID STREQUAL Clang)
-  message(WARNING "Disabling -Wcast-align with clang.  TODO: fix casting and re-enable it.")
-else ()
+if (NOT CMAKE_CXX_COMPILER_ID STREQUAL Clang)
+  # Disabling -Wcast-align with clang.  TODO: fix casting and re-enable it, someday.
   set_cflags_if_supported(-Wcast-align)
 endif ()