CPPFLAGS	+=
CXXFLAGS	+=	-O0 -g -fomit-frame-pointer # -malign-double -ffast-math

# enable sanitizers if GCC >= 5
# the default is to only enable the UndefinedBehaviorSanitizer (SANITIZE=true)
# if user specifies SANITIZE=full, then also other sanitizers are enabled
GCCVERSION := $(shell $(CXX) -dumpversion | cut -f1 -d.)
SANITIZE = $(word $(shell expr \( $(GCCVERSION) \>= 5 \) + 1), false, true)

ifeq ($(SANITIZE),full)

# -fsanitize=address does not work together with -fsanitize=thread
# -fsanitize=leak is included in -fsanitize=address, but works together with -fsanitize=thread

ifeq ($(PARASCIP),true)
# enable ThreadSanitizer (https://github.com/google/sanitizers/wiki/ThreadSanitizerCppManual)
SANITIZERFLAGS = -fsanitize=thread

# enable LeakSanitizer (https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer)
SANITIZERFLAGS += -fsanitize=leak

else
# enable AddressSanitizer (https://github.com/google/sanitizers/wiki/AddressSanitizer)
SANITIZERFLAGS = -fsanitize=address

endif

# enable UndefinedBehaviorSanitizer
SANITIZERFLAGS += -fsanitize=float-cast-overflow -fsanitize=float-divide-by-zero

endif

ifeq ($(SANITIZE),true)

# enable UndefinedBehaviorSanitizer
SANITIZERFLAGS = -fsanitize=float-cast-overflow -fsanitize=float-divide-by-zero

# do not enable LeakSanitizer (https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer)
# it may prevent usage of valgrind while also not replacing it
#SANITIZERFLAGS += -fsanitize=leak

endif

CXXFLAGS += $(SANITIZERFLAGS)
ifeq ($(SHARED),true)
  LIBBUILDFLAGS += $(SANITIZERFLAGS)
endif
LDFLAGS += $(SANITIZERFLAGS)

# deprecated
SANITZERFLAGS = $(SANITIZERFLAGS)