Index: CMakeLists.txt
===================================================================
diff -u -r51e99f2578e0901d9da91a4cb60d1b8858cfe971 -re9aa2c82ccb8cb5662f05ed878d2f7b5ef9f4a65
--- CMakeLists.txt	(.../CMakeLists.txt)	(revision 51e99f2578e0901d9da91a4cb60d1b8858cfe971)
+++ CMakeLists.txt	(.../CMakeLists.txt)	(revision e9aa2c82ccb8cb5662f05ed878d2f7b5ef9f4a65)
@@ -14,6 +14,7 @@
 set(CMAKE_DISABLE_IN_SOURCE_BUILD ON)
 
 add_compile_options(-Wall -Werror -Wextra)
+add_compile_options($<$<CONFIG:Debug>:-U_FORTIFY_SOURCE>)
 
 add_subdirectory(lib)
 add_subdirectory(tools)