Initial tricolor implementation

Makefile

@@ -1,4 +1,5 @@
 DEBUG=1
+LLVM_SAN=0
 
 ifeq ($(DEBUG),1)
 DEBUG_CFLAGS=-g
@@ -6,10 +7,17 @@ else
 DEBUG_CFLAGS=-D_NDEBUG
 endif
 
+ifeq ($(LLVM_SAN),1)
+LLVM_SAN_FLAGS=-fsanitize=address,undefined
+else
+LLVM_SAN_FLAGS=
+endif
+
 CC=gcc
-CFLAGS=$(DEBUG_CFLAGS) -std=c11 -Wall -Wpedantic -D_POSIX_C_SOURCE=199309L
+CFLAGS=$(DEBUG_CFLAGS) $(LLVM_SAN_FLAGS) -std=c11 -Wall -Wpedantic $\
+       -D_POSIX_C_SOURCE=199309L
 LD=gcc
-LDFLAGS=
+LDFLAGS=$(LLVM_SAN_FLAGS)
 
 SRCS:=$(wildcard src/*.c)
 OBJS:=$(SRCS:src/%.c=bin/%.o)