Refs #5622. Undo unrelated change.

git-svn-id: file:///svn/toku/tokudb@48990 c7de825b-a66e-492c-adef-691d508d4ae1

cmake_modules/TokuSetupCompiler.cmake

@@ -107,7 +107,7 @@ set_ldflags_if_supported(
 ## set extra debugging flags and preprocessor definitions
 set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g3 -O0")
 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g3 -O0")
-# set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_DEBUG _FORTIFY_SOURCE=2)
+set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_DEBUG _FORTIFY_SOURCE=2)
 
 ## set extra release flags
 if (APPLE AND CMAKE_CXX_COMPILER_ID STREQUAL Clang)