X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2FMakefile;h=cdedd25d0da4cb5747594ffd17ec4efad4759067;hp=95e6ac981350f59d51f14b4350bc28025244414e;hb=bf51b4796abd400648ba751fe545fd1785232a6b;hpb=e18e557e77ece5afaa3aee2d982f23685526bc1b

diff --git a/src/Makefile b/src/Makefile
index 95e6ac98..cdedd25d 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -50,6 +50,7 @@ OBJS = benchmark.o bitbase.o bitboard.o endgame.o evaluate.o main.o \
 # ----------------------------------------------------------------------------
 #
 # debug = yes/no      --- -DNDEBUG         --- Enable/Disable debug mode
+# sanitize = yes/no   --- (-fsanitize )    --- enable undefined behavior checks
 # optimize = yes/no   --- (-O3/-fast etc.) --- Enable/Disable optimizations
 # arch = (name)       --- (-arch)          --- Target architecture
 # bits = 64/32        --- -DIS_64BIT       --- 64-/32-bit operating system
@@ -65,6 +66,7 @@ OBJS = benchmark.o bitbase.o bitboard.o endgame.o evaluate.o main.o \
 ### 2.1. General and architecture defaults
 optimize = yes
 debug = no
+sanitize = no
 bits = 32
 prefetch = no
 popcnt = no
@@ -253,13 +255,18 @@ ifneq ($(comp),mingw)
 	endif
 endif
 
-### 3.2 Debugging
+### 3.2.1 Debugging
 ifeq ($(debug),no)
 	CXXFLAGS += -DNDEBUG
 else
 	CXXFLAGS += -g
 endif
 
+### 3.2.2 Debugging with undefined behavior sanitizers
+ifeq ($(sanitize),yes)
+	CXXFLAGS += -g3 -fsanitize=undefined
+endif
+
 ### 3.3 Optimization
 ifeq ($(optimize),yes)